a 1.00 degree increased on the celsius scale is equivalent to a 1.80 degree increased on the fahrenheit scale. if a temperance increased by 48.0 C, what is the corresponding temperature increased on the faherheit scale

Answers

Answer 1
48*1.8=86.4
you just have to multiply it

Related Questions

Given the speed of light as 3.0 × 108 m/s, calculate the wavelength of the electromagnetic radiation whose frequency is 7.5 × 1012 Hz. Answer in units of m.

Answers

wavelength= velocity/frequency
wavelength= (3.0 x 10^8m/s) / 7.5 x 10^12 Hz)
you can do the math
I am assuming u that 108 is 10^8 and the 1012 is 10^12

(Refer to attachment)

1. List the windows in order of decreasing density.
2. Compare the density of the gas in window (a) to the density of gas in window (b).

Answers

In order from greatest to least density:
B→ C → A

The density of the gas in window (b) is greater than that in window (a) because it has a greater number of particles per unit volume in window (b) than in window (a).

List the 4 main components of air in their molecular form.

Answers

Final answer:

The four main components of air are nitrogen (N2), oxygen (O2), water vapor (H2O), and carbon dioxide (CO2). Nitrogen is the most abundant, followed by oxygen, while water vapor and carbon dioxide are in comparatively smaller amounts. Each component's molecular composition defines its physical and chemical properties.

Explanation:

The four main components of air in their molecular form are nitrogen (N₂), oxygen (O₂), water vapor (H₂O), and carbon dioxide (CO₂). Nitrogen contributes approximately 78.6 percent of the air's total composition, oxygen makes up about 20.9 percent, while water vapor and carbon dioxide represent smaller proportions, at around 0.5 percent and 0.04 percent, respectively.

Each of these gases exhibits different physical and chemical properties due to the combination of atoms within their molecules. In its molecular form, nitrogen is made up of two nitrogen atoms bonded together. Similarly, oxygen contains two bonded oxygen atoms. Water vapor is a molecule constituted of two hydrogen atoms and one oxygen atom, while carbon dioxide consists of one carbon atom and two oxygen atoms.

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The four main components of air in their molecular forms are Nitrogen (N₂), Oxygen (O₂), Water Vapor (H₂O), and Carbon Dioxide (CO₂). Nitrogen and oxygen constitute about 99% of the atmosphere. The rest is composed of argon, carbon dioxide, and trace gases.

The air we breathe is a mixture of gases. Among these, the four main components of air in their molecular forms are:

Nitrogen (N₂)Oxygen (O₂)Water Vapor (H₂O)Carbon Dioxide (CO₂)

These gases make up the majority of the Earth's atmosphere, with nitrogen and oxygen accounting for about 99% of the air. The remaining 1% consists of argon, carbon dioxide, and other trace gases. Each gas exerts a partial pressure that contributes to the overall atmospheric pressure.

explain the process of saponification?

Answers

Saponification is the process of making soap. When an oil/fatty acid such as olive oil, mixed with a base (such as lye), and heated up, two products are made. One of the two products made from that mixture is fatty acid salt, or soap as it's commonly identified as. The second is glycerol which has a low toxicity. During the saponification process, the mixture has an acidity, which tells that it's not safe for usage. After the saponification process is complete, the pH should be a base.

Solid classification
Classify each of these solids as ionic, covalent network, metallic, or molecular.

c) Mg (s)
Would it be metallic?

Answers

Final answer:

Solid magnesium (Mg (s)) is classified as a metallic solid, which has a closely packed crystal structure and exhibits high electrical conductivity.

Explanation:

When classifying the solid magnesium (Mg (s)), it would be considered a metallic solid. Magnesium is a metal and in solid form, it exists as a metallic solid with closely packed magnesium atoms that form a metallic crystal structure. This structure allows for the free flow of electrons, which imparts metallic solids with characteristic properties such as high electrical conductivity and malleability.

balanced equation for: Nitric oxide gas reacts with hydrogen gas to form ammonia gas and water vapor.

Answers

          2NO(g) + 5H2(g) ====> 2NH3(g) + 2H2O(g) 

The balanced chemical equation for the reaction between nitric oxide gas (NO) and hydrogen gas (H₂) to form ammonia gas (NH₃) and water vapor (H₂O) is:

[tex]\[ 3NO(g) + 2H_2(g) \rightarrow 2NH_3(g) + H_2O(g) \][/tex]

To balance this equation, we follow these steps:

1. Write down the unbalanced equation:

[tex]\[ NO(g) + H_2(g) \rightarrow NH_3(g) + H_2O(g) \][/tex]

2. Balance the nitrogen atoms first. There is one nitrogen atom on the reactant side in NO and three nitrogen atoms in the product NH₃. To balance the nitrogen atoms, we need to have three NO molecules on the reactant side:

[tex]\[ 3NO(g) + H_2(g) \rightarrow 2NH_3(g) + H_2O(g) \][/tex]

3. Next, balance the hydrogen atoms. There are six hydrogen atoms in the products (two NH₃ molecules have six hydrogen atoms in total, and one H₂O molecule has two hydrogen atoms). To balance the hydrogen atoms, we need to have two H₂ molecules on the reactant side:

[tex]\[ 3NO(g) + 2H_2(g) \rightarrow 2NH_3(g) + H_2O(g) \][/tex]

4. Finally, balance the oxygen atoms. There are three oxygen atoms on the reactant side (from three NO molecules) and one oxygen atom in the product Hâ‚‚O. The oxygen atoms are already balanced, so no changes are needed there.

5. Verify that the equation is balanced for all atoms:

- Nitrogen: 3 NO have 3 nitrogen atoms, and 2 NH₃ also have 3 nitrogen atoms.

- Hydrogen: 2 H₂ have 4 hydrogen atoms, 2 NH₃ have 6 hydrogen atoms, and 1 H₂O has 2 hydrogen atoms, making a total of 8 hydrogen atoms on both sides.

- Oxygen: 3 NO have 3 oxygen atoms, and 1 Hâ‚‚O has 1 oxygen atom.

The equation is now balanced with the same number of each type of atom on both sides of the equation.

Select all the properties of a shield volcano listed below.
A. Basaltic lava
B. Violent eruptions
C. Layered structure
D. Found around the Ring of Fire
E. Large amounts of pyroclastic material

Answers

A. Basaltic lava her u go

Answer:

Option (A), (C) and (D)

Explanation:

Shield volcanoes are generally characterized gentle slopes, and are dome shaped, resembling the shield that is used by the ancient warriors. This type of volcano produces magma that are basaltic in nature and have no silica content. So they can flow easily. The layers are often formed due to the gentle eruption of lava that solidifies. These volcanoes are not explosive but they can turn into a violent one if it comes in contact with water. They occur along the Pacific's ring of fire. The amount of pyroclastic materials is less than the total amount of lava it releases during a volcanic eruption.

Thus, the correct answers are options (A), (C) and (D).

State the three rules that define how electrons are arranged in atoms

Answers

The three correct rules or principles are the Aufbau Principle, Hund’s Rule, and the Pauli Exclusion Principle. Aufbau’s Principle states that each electron orbits the lowest energy orbital. It also states that all orbitals related to an energy level are of equal energy. Hund’s Rule states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals. And finally, the Pauli Exclusion Principle states that a maximum of two electrons may occupy a single orbital, but only if the electrons have opposite spins. Hope this helps.

The three rules that define that how the electrons are arranged in atoms are the Aufbau Principle, Hund's rule, and the Pauli Exclusion Principle.  

• According to the Aufbau Principle, each electron holds the lowest energy orbital, and all the orbitals associated with an energy level are of the same energy.  

• According to Hund's rule, the single electrons with a similar spin must attain the equal energy orbital before the other electrons with the contrasting spins can attain similar orbitals.  

• According to the Pauli Exclusion principle, only a maximum of up to two electrons can occur in a single orbital, and only if the electrons exhibit opposite spins.  

Thus, the three rules, which illustrate that how the electrons are aligned in atoms are the Aufbau Principle, Hund's Rule, and the Pauli Exclusion Principle.

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A molecule of carbon dioxide (CO2) contains two polar covalent bonds. Why is the molecule nonpolar?


Each bond in the molecule is only moderately polar covalent.

The molecule is too small to be polar.

The polar bonds are oriented in opposite directions.

The carbon atom has two unshared pairs of electrons.

Answers

Answer : Option C) The polar bonds are oriented in opposite direction.

Explanation : A molecule of carbon dioxide [tex] (CO_{2}) [/tex] contains two polar covalent bonds. This molecule is non-polar because the polar bonds are oriented in the opposite direction.

In order to be a polar molecule, carbon dioxide must have both a slightly negative side and a slightly positive side in its molecule. The orientation of the lone pairs of electrons present on each oxygen atom cancels each other, making the molecule non polar.

Answer: Option (c) is the correct answer.

Explanation:

Shape of a [tex]CO_{2}[/tex] molecule is linear, that is, carbon atom resides at the center and each oxygen atom lies on its left and right side.

Since, oxygen is more electronegative than carbon so, dipole moment will be towards oxygen atom. Hence, dipole moment cancel out as the bonds are in opposite directions.

Therefore, we can conclude that a molecule of carbon dioxide is non-polar because the polar bonds are oriented in opposite directions.

If the molecules of two different substances have a similar size but the molecules of one substance are polar while the molecules of the other substance are nonpolar, what is most likely true about the substances?

Answers

Answer:

Polar substances tend to mix with each other, while nonpolar substances tend to mix with nonpolar substances

Explanation:

The covalent bond is the chemical bond between atoms where electrons are shared, forming a molecule. Covalent bonds are established between non-metallic elements, such as hydrogen H, oxygen O and chlorine Cl. These elements have many electrons in their outermost level (valence electrons) and have a tendency to gain electrons to acquire the stability of the electronic structure of noble gas. The shared electron pair is common to the two atoms and holds them together.

The covalent bond between two atoms can be polar or nonpolar. This depends on the type of atoms that make it up: if the atoms are equal, the bond will be nonpolar (since no atom attracts electrons more strongly). But, if the atoms are different, the bond will be polarized towards the most electronegative atom, because it will be the atom that attracts the electron pair with more force. Then it will be polar.

It can occur in a molecule that the bonds are polar and the molecule is nonpolar. This occurs because of the geometry of the molecule, which causes them to cancel the different equal polar bonds of the molecule (remember that not all polar bonds are equal, because they are due to the difference in electronegativity of the elements, which are not all same).

Solubility is a physical property that is directly related to the polarity of molecules.  With regard to solubility it is said that "the like is mixed with the like." That is, polar substances tend to mix with each other, while nonpolar substances tend to mix with nonpolar substances. For example, oil is a nonpolar substance, which when mixed with a polar substance such as water does not mix, generating two phases.

Final answer:

When comparing polar and nonpolar molecules of similar size, polar molecules will have stronger dipole-dipole interactions, while nonpolar molecules only experience London dispersion forces, affecting their solubility and interaction with solvents according to the principle 'like dissolves like'.

Explanation:

If the molecules of two different substances have a similar size but the molecules of one substance are polar while the molecules of the other substance are nonpolar, we can anticipate different behaviors with respect to their solubility and interaction with other substances.

Polar molecules often dissolve in polar solvents because the dipole-dipole interactions or hydrogen bonding are comparable in strength to the attractions in the pure substances, allowing them to mix easily.

Nonpolar molecules, on the other hand, are more likely to dissolve in nonpolar solvents, since the London dispersion forces present in these molecules are of similar strength to any solute-solvent interactions, thus adhering to the principle that "like dissolves like".

All molecules are subjected to London dispersion forces, but polar molecules also experience dipole-dipole interactions, which are generally much stronger for small polar molecules, making these interactions the predominant force.

As a result, a polar substance and a nonpolar substance, even if similar in size, will likely have different physical properties such as boiling point, melting point, and solubility.

How much 10% solution and how much 45% solution should be mixed together to make 100 gallons of 25% solution?

Answers

Final answer:

To mix a 100 gallons of 25% solution from 10% and 45% solutions, create a system of equations representing total volume (x+y=100) and solute balance (0.10x+0.45y=25) to solve for x and y, which represent the volumes of 10% and 45% solutions needed.

Explanation:

The question is asking how to mix different concentrations of a solution to achieve a desired concentration in a specific total volume. To find out how much 10% solution and how much 45% solution are needed to make 100 gallons of a 25% solution, we can use a system of linear equations based on the concept of mass balance. The total amount of the solute in the final solution must be equal to the sum of the amounts in the individual components before mixing.

Let's denote x as the volume of the 10% solution and y as the volume of the 45% solution to be mixed. The mass of solute in the mixture must equal the mass of solute from both parts added together. Since we want 100 gallons of 25% solution, we can create the following equations:

Equation 1 (total volume): x + y = 100Equation 2 (solute balance): 0.10x + 0.45y = 0.25(100)

Solving this system of equations will give the values of x and y, the volumes of 10% solution and 45% solution needed respectively. This involves substitution or elimination methods to find the solution to the system.

Final answer:

To solve for the amounts of 10% solution and 45% solution needed to make 100 gallons of a 25% solution, set up a system of linear equations using the total volume and concentration equations and solve for the two unknowns.

Explanation:

This problem is an example of a classic mixture problem in algebra, where we aim to find the proportions of two solutions of different concentrations to mix together to end up with a specific final concentration. We have two different solutions with concentrations of 10% and 45%, and we want to combine them to make 100 gallons of a 25% solution.

To solve this problem, let's let x represent the number of gallons of the 10% solution and y the number of gallons of the 45% solution. The total volume should be 100 gallons, so:

x + y = 100 gallons ... (1)

Now, we need to set up an equation based on the concentrations:

0.10x + 0.45y = 0.25(100)

0.10x + 0.45y = 25 ... (2)

Now we have a system of two equations:

x + y = 100

0.10x + 0.45y = 25

You can solve this system using either the substitution or elimination method. The solution will give you the amounts of 10% solution and 45% solution needed to obtain 100 gallons of 25% solution.

Why is KCl a better salt-bridge than NaCl?

Answers

KCl is a better salt-bridge than NaCl  because : 
Na+ is higher on the chart and has a larger reduction potential, this is the chatode of the voltage. 
this means the K+ is the anode of the cell

hope this helps

What are the heaviest and lightest gases at standard conditions? ...?

Answers

The molecular weight I'm guessing you want: 

Nitrogen = 28.0134 
Oxygen = 31.9988 
Carbon Dioxide = 44.01 
Ammonia = 17.02 
Propane = 44.097 

Therefore Propane is the heaviest and Ammonia the lightest.


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Chemistry is defined as the study of the composition and structure of materials and

Answers

Chemistry can be defined as the study of the composition, structure and properties of matter and the reactions that matter undergoes. Physical Chemistry is concerned with structure of matter, energy changes. ... Matter is the general term for the material things around us.

Chemistry is the study of matter, its properties, and transformations in various applications.

Chemistry is the branch of science that deals with the structure, composition, properties, and reactive characteristics of matter. It studies everything around us, from the liquids we use to the composition of materials like plastics and metals. Chemists play a crucial role in designing, predicting, and controlling chemical transformations for various applications.

if 294 grams of FeS2 is allowed ti react with 176 grams of O2 according to the following equation how many grams of Fe2O3 are produced?

FeS2 + O2 = Fe2O3 + SO2

Answers

Final answer:

532.6 grams of [tex]Fe_{2}O_{3}[/tex] are produced.

Explanation:

To calculate the grams of [tex]Fe_{2}O_{3}[/tex] produced, we need to follow a stoichiometry calculation using the balanced chemical equation given. The molar ratio between [tex]FeS_{2}[/tex] and [tex]Fe_{2}O_{3}[/tex] is 1:1, so the amount of [tex]Fe_{2}O_{3}[/tex] produced will be equal to the amount of [tex]FeS_{2}[/tex] used.

First, we convert the grams of [tex]FeS_{2}[/tex] to moles using its molar mass. Then, we use the molar ratio to determine the moles of [tex]Fe_{2}O_{3}[/tex] produced. Finally, we convert the moles of [tex]Fe_{2}O_{3}[/tex] to grams using its molar mass.

Let's calculate:

Convert grams of [tex]FeS_{2}[/tex] to moles using its molar mass: 294 g [tex]FeS_{2}[/tex] × (1 mol [tex]FeS_{2}[/tex] ÷ 87.9 g [tex]FeS_{2}[/tex]) = 3.343 mol [tex]FeS_{2}[/tex]

Use the molar ratio from the balanced equation to find moles of [tex]Fe_{2}O_{3}[/tex] produced: 3.343 mol of [tex]FeS_{2}[/tex] × (1 mol [tex]Fe_{2}O_{3}[/tex] ÷ 1 mol [tex]FeS_{2}[/tex]) = 3.343 mol [tex]Fe_{2}O_{3}[/tex]

Convert moles of [tex]Fe_{2}O_{3}[/tex] to grams using its molar mass: 3.343 mol [tex]Fe_{2}O_{3}[/tex] × (159.7 g [tex]Fe_{2}O_{3}[/tex] ÷ 1 mol [tex]Fe_{2}O_{3}[/tex]) = 532.6 g.

To find the grams of Fe₂O₃ produced when reacting 294 grams of FeS₂ with 176 grams of O₂, first identify O₂ as the limiting reagent and then calculate the resultant Fe₂O₃ mass to be 159.69 grams.

To determine the grams of Fe₂O₃ produced when 294 grams of FeS₂ react with 176 grams of O₂ according to the equation FeS₂ + O₂ → Fe₂O₃ + SO₂, follow these steps:

Balance the chemical equation: 4FeS₂ + 11O₂ → 2Fe₂O₃ + 8SO₂.Calculate the moles of FeS₂ and O₂: Molar mass of FeS₂ = 119.98 g/mol and molar mass of O₂ = 32.00 g/mol.Moles of FeS₂ = 294 g / 119.88 g/mol ≈ 2.45 mol; Moles of O₂ = 176 g / 32.00 g/mol ≈ 5.50 mol.Identify the limiting reagent through stoichiometry: For 2.45 mol FeS₂, required O₂ = (11/4) * 2.45 mol ≈ 6.74 mol. Since available O₂ is 5.50 mol, O₂ is the limiting reagent.Calculate moles of Fe₂O₃ produced: From the stoichiometric ratio 11 mol O₂ yields 2 mol Fe₂O₃, thus 5.50 mol O2 yields (2/11) * 5.50 mol ≈ 1.00 mol Fe₂O₃.Convert moles of Fe₂O₃ to grams: Molar mass of Fe₂O₃ = 159.69 g/mol, therefore 1.00 mol Fe₂O₃ ≈ 159.69 g.

Thus, 159.69 grams of Fe₂O₃ are produced in this reaction.

What is the ending of the electron configuration of each element in group 4?

Answers

because p6 will be the group 8. You have to count the 2 electrons from the "s" block that are Group I and Group II Group I s1 Group II s2 Group III s2 p1 Group IV s2 p2 Group V s2 p3 Group VI s2 p4 Group VII s2 p5 Group VIII s2 p6

All components in groups 4A or 14 finish in p2. This is how it works. There are several outliers for the metallic elements (groups 3–12). The basic norm is that the electron arrangement of an element terminates in d, regardless of its location.

because grouping 8 will be p6. we must count the two Groups I and Group II electrons from the "s" block. 

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Science <33 I will upvote!
Which car is accelerating?
A) a car that is unmoving
B) a car that rounds a curve at a constant speed
C) a car that travels in straight line at a constant speed
D) a car that is set to a constant speed of 60 miles per hour

Answers

D) A car that is set to a constant speed of 60 miles per hour.
B. ) A car that rounds a curve at a constant speed. This motion is called uniform circular motion. In this motion, magnitude of speed and acceleration remains constant, but their direction changes continuously.

Which group 4A element has the highest ionization energy?

Answers

Final answer:

Carbon (C) has the highest ionization energy in group 4A due to its position in the periodic table, with ionization energy increasing across a period and decreasing down a group.

Explanation:

The group 4A element with the highest ionization energy is carbon (C). Ionization energy tends to increase across a period (from left to right) and decreases down a group (from top to bottom) of the periodic table. Since carbon is above silicon, germanium, tin, and lead in group 4A, it possesses the highest ionization energy among these elements. This is due to its smaller atomic radius and the stronger attraction between the nucleus and the electrons in the outer shell, making it more difficult to remove an electron.

Additionally, the ionization energy follows the pattern where it increases for successive electrons being removed from valence orbitals, with a notably large increase when an electron is removed from a filled core level, which typically has the electron configuration of the preceding noble gas.

An atom of strontium has at least four different isotopes. What is different between an isotope of 88Sr and an isotope of 84Sr?

Answers

Final answer:

Isotopes are forms of an element with the same number of protons, but different numbers of neutrons. The difference between 88Sr and 84Sr is in the number of neutrons, with 88Sr having 50 neutrons and 84Sr having 46 neutrons. This affects their physical properties but not their chemical behavior.

Explanation:

The difference between an isotope of 88Sr and an isotope of 84Sr lies in the number of neutrons each isotope contains. Isotopes are different forms of an element that have the same number of protons but a different number of neutrons. In the case of strontium (Sr), the atomic number is 38 which means it has 38 protons. For 88Sr, subtracting the number of protons (38) from the mass number (88), we find that this isotope has 50 neutrons. For the isotope 84Sr, it has 46 neutrons (84-38). The difference in the number of neutrons results in different physical properties, but does not affect the chemical behavior of the isotopes.

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How many hydrogen atoms are in water?

Answers

water is H2O. hydrogen atom is H1 O2
so hydrogen atom is H2

Consider the reaction below.

2H2 + O2 ---> 2H2O

How many moles of water are produced from 13.35 mol of oxygen?
6.675 mol
26.70 mol
53.40 mol
66.75 mol

Answers

In the balanced reaction shown, there are twice as many moles of water as oxygen. If 13.35 moles of oxygen are reacted, 26.70 moles of water is formed.

The moles  of water  that are produced  from 13.35  mol of oxygen  is 26.70  moles (answer B)


calculation


2H2 +O2→ 2H2O

The moles of H2O is  calculated using mole ratio.


that is; from the balanced  equation above  the mole ratio of O2 :H2O  is 1:2

therefore  the moles of water=13.35 moles x 2/1 =26.70 moles

How many moles of naf are in 34.2 grams of a 45.5% by mass naf solution?

Answers

 % by mass = mass solute x 100 / mass solution 

45.5 % = mass solute NaF x 100 / 34.2 

mass solute NaF = 34.2 x 45.5 /100=15.6 g 

molae solute NaF = 15.6 g ( 1 mol / 41.9887 g)= 0.372

Moles of NAF are in 34.2 grams of a 45.5% by mass naf solution 15.6 g

What are moles?

One mole is the Avogadro number of particles (atoms, molecules, ions, or electrons) in a substance. One mole of atoms contains 6 x 1023 atoms. The 6.022 x 10 23 number is known as the number of Avogadro or the constant of Avogadro.

For the conversion of mass and number of particles, the definition of the mole can be used.

A mole is the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12 percent  by mass = mass solute x 100 / mass solution percent mass = 45%mass of solution = 34.2 g

substituting the value,

45.5 % = mass solute NaF x 100 / 34.2 mass solute NaF              

              = 34.2 x 45.5 /100=15.6 g

Therefore, the total number of moles that are participating will be 15.6 g

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2 CuCl2 + 2 NaNO3 ---> Cu(NO3)2 + 2 NaCl


If 15 grams of copper (II) chloride react with 20 grams of sodium nitrate, How many grams of NaCl is formed

Answers

I hope you know the concept of limiting reagent. It is one of the simplest method to solve stoichiometric problems ;-)

According to the stoichiometry of the given chemical equation, 7.64 grams of NaCl is formed.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

As per the equation, 268.9 grams copper chloride gives 137 g so 15 g copper chloride will give 15×137/268.9=7.64 g.

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An ion is an atom that has a net positive or negative electric charge (true/false)

Answers

That statement is true. Hope I was of assistance :)

a factor that changes in an experiment from manipulation of the independent variable is the what?
a- hypothesis
b-constant
c-control
d- dependent variable

Answers

Final answer:

The factor in an experiment that changes due to manipulation of the independent variable is the dependent variable, which is observed and measured to see the effect of the independent variable.

Explanation:

A factor that changes in an experiment from manipulation of the independent variable is the dependent variable. In an experiment, the independent variable is the factor controlled or manipulated by the experimenter, and its effects are observed and measured in the dependent variable. All changes measured in the dependent variable are ideally due to manipulations made to the independent variable.

For example, in an experiment testing the effect of sunlight on plant growth, sunlight exposure is the independent variable, while the growth of the plant, which is measured in response to varying levels of sunlight, is the dependent variable. Controls and constants are also crucial in ensuring the experiment's validity by keeping all other variables unchanged to isolate the effect of the independent variable on the dependent variable.

How many orbitals are in a d sublevel?

Answers

Answer:

There are 5 orbitals in the "d" sublevel.

Explanation:

Final answer:

In the d sublevel, there are 5 orbitals. The d sublevel consists of 5 atomic orbitals: dxy, dxz, dyz, dx2-y2, and dz2. Each orbital can hold a maximum of 2 electrons.

Explanation:

In the d sublevel, there are 5 orbitals.

The d sublevel consists of 5 atomic orbitals:

The dxy orbitalThe dxz orbitalThe dyz orbitalThe dx2-y2 orbitalThe dz2 orbital

Each orbital can hold a maximum of 2 electrons, resulting in a total of 10 electrons in the d sublevel.

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A 54-gram sample of an unknown material has a volume equal to 20 cm3. Based on its density, could the sample be aluminum? Explain. When the aluminium is 2.7.

Answers

The answer is the unknown material is the aluminium.

The density (D) is the quotient of mass (m) and volume (V):
D = m/V

The density of the unknown material:
m = 54 g
V = 20 cm³

D = 54 / 20 = 2.7

Since the density of the unknown material is 2.7 and the density of the aluminium is 2.7, the unknown material is the aluminium.
Density = mass / volume
ρ = 54 / 20
ρ = 2.7 g/cm³

The density of aluminum is 2.7 cm³ so this material is aluminum. The density of a material is specific to it and is independent of the amount of substance present; thus, it can conclusively be stated that this material is aluminum.

Which of the following is most likely to be a covalently bonded, polar compound?
Which of the following is most likely to be a covalently bonded, polar compound?

NaCl

CCl4

CH4

NH3

Answers

the first 1 that u have

Answer:

NF3

Explanation:

Test review said this was right

Someone Please Help Me!!

Using the Periodic table explain how the position of the elements that make up the salts (NaCl,CaCl2) and KCl) can be used to tell if the bonds are ionic or covalent. (Hint: ionic compounds are made up of 2 or more elements that are far apart on the periodic table)

Answers

covalent is a bond made up of two different nonmetals which are located on the right side of the period table . ionic bonds are made up of a non metal and a metal so it would an element from the left side of the period table and a element from the right side of the period table

Taking into account the definition of covalent and ionic bonds, the bonds of NaCl, CaCl₂ and KCl are ionic.

The covalent bond is the chemical bond between atoms where electrons are shared, forming a molecule. Covalent bonds are established between non-metallic elements. These elements have many electrons in their outermost level (valence electrons) and have a tendency to gain electrons to acquire the stability of the electronic structure of noble gas. The shared electron pair is common to the two atoms and holds them together.

On the other side, an ionic bond is produced between metallic and non-metallic atoms, where electrons are completely transferred from one atom to another. During this process, one atom loses electrons and another one gains them, forming ions. Usually, the metal gives up its electrons forming a cation to the nonmetal element, which forms an anion.

Considering the above, as Na, Ca and K are metals and Cl is a non-metal, the bonds of NaCl, CaCl₂ and KCl are ionic.

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What's the atomic mass unit of helium?

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4.002602 u ± 0.000002 u
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