A distance of 2 kilometers is equal

Answer:

The juice contains sugars, plant pigments, and other chemicals dissolved in water. This is a solution.

The pieces of orange pulp will rise to the top or settle to the bottom of the juice if it is allowed to sit.

The pieces of pulp mixed with the juice form a suspension.

Explanation:

answers on edge

Answer:

The correct answer option is a) one microliter.

Explanation:

We are given four different units of measuring the volume of a liquid and we are to determine whether which of them is the smallest of all.

Comparing the given values with 1 liter quantity:

a) 1 microliter - it equals to 0.000001 liters

b) one deciliter - it equals to 0.1 liter

c) one liter - 1 liter

d) one milliliter - it equals to 0.001 liter

So the smallest value is one microliter.

Answer:

a) one microliter

Explanation:

The advantage of the SI (International system of measurements) is that everything is in base 10, and the prefix indicates the power of 10.

For the volume, the base unit is the liter.

one microliter = 0.000001 liter (one millionth, 1 / 1000000, of a liter)

one deciliter = 0.1 liter (one tenth, 1/10,  of a liter)

one liter = 1 liter

one milliliter = 0.001 liter (one thousand, 1/1000, of a liter)

As you can see, a microliter is by far the smallest of these units.

The particles in a solid are tightly packed and locked in place. Although we cannot see it or feel it, the particles are vibrating in place.

As these molecules heat up, they will vibrate more vigorously, and will eventually turn to water, then gas.

Answer:

Hardly move and vibrate

Explanation:

in solids particles are packed thight together

Answer: H2SO4(aq) + 2NaOH(aq) → Na2SO4(aq) + 2H2O(1)

Explanation:

[tex]H_2SO_4(aq) + 2NaOH(aq)[/tex] → [tex]Na_2SO_4(aq) + 2H_2O(l)[/tex] is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase.

Formula Equation: represents the reactants and products of a chemical reaction by their symbols or formulas.

Example, [tex]CH_4(g) + O_2(g)[/tex] → [tex]CO_2(g) + H_2O(g)[/tex]

[tex]H_2SO_4(aq) + 2NaOH(aq)[/tex] → [tex]Na_2SO_4(aq) + 2H_2O(l)[/tex] is the formula equation for the reaction between sulfuric acid and dissolved sodium hydroxide if all products and reactants are in the aqueous or liquid phase.

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Answer:

c. Radiation

Explanation:

a and b are wrong. You can't have convection or convection currents without air, and all the air has been removed from the box.

d is wrong. There is no liquid in the box.

c is correct. Heat can be transmitted even through a vacuum by radiation (e.g., the Sun). You can quickly feel the heat radiated by a piece of white-hot iron.

A scientist heats a piece of iron until it is glowing white-hot. He places the metal inside a metal box. He removes all of the air from the inside of the box. After a few seconds, the sides of the box that are not touching the metal begin to feel warm. Radiation process is most likely responsible for the warming.

Hence, Option (C) is correct answer.

The transfer of  heat energy by direct contact is called Conduction.

The transfer of thermal energy through the movement of matter is called as Convection current.

The transfer of thermal energy through the thermal emission is called as Radiation.

It is the process in which heat requires to occur is called Evaporation.

Thus from the above conclusion we can say that A scientist heats a piece of iron until it is glowing white-hot. He places the metal inside a metal box. He removes all of the air from the inside of the box. After a few seconds, the sides of the box that are not touching the metal begin to feel warm. Radiation process is most likely responsible for the warming.

Hence, Option (C) is correct answer.

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Answer: you gota show the digram for me to help dude

Explanation:

The diagram that represents the phase that occurs after a solid melts is Diagram 4.

Diagram 1 - This shows a tightly packed arrangement of blue spheres, which is representative of the solid state of matter. In the solid phase, the particles (atoms, molecules, or ions) are closely packed together in a fixed, crystalline structure.

Diagram 2 - This shows a more dispersed arrangement of yellow circles, which is representative of the gaseous state of matter. In the gas phase, the particles have high kinetic energy and are spread out, occupying the full volume of their container.

Diagram 3 - This shows a less tightly packed arrangement of red spheres compared to Diagram 1, which is characteristic of the liquid state of matter. In the liquid phase, the particles have more freedom of movement compared to the solid state, but are still in close proximity to each other.

Diagram 4 - This grid-like pattern is most representative of the liquid phase that occurs after a solid substance melts. When a solid is heated and reaches its melting point, the particles gain enough kinetic energy to break free of the fixed, crystalline structure and adopt a more fluid, liquid arrangement shown in Diagram 4.

Answer:

Rate = (0.64 M²/min) [A]¹[B]²

Explanation:

1) Determination of the orders of A & B:

The rate law of the reaction = k [A]ᵃ[B]ᵇ

where, k is the rate law constant,

a is the order of the reaction with respect to reactant A,

b is the order of the reaction with respect to reactant B.

This is initial rate method problem:

From trial 1 & 2:

Reactant [A] has the same concentration in both trials, but [B] has different concentrations and the rate of the reaction changes, so the reaction rate depends on [B].

From trial 1, Rate₁ = k [A₁]ᵃ[B₁]ᵇ, [1.2 × 10⁻² M/min] = k [0.30 M]ᵃ[0.25 M]ᵇ

From trial 2, Rate₂ = k [A₂]ᵃ[B₂]ᵇ, [4.8 × 10⁻² M/min] = k [0.30 M]ᵃ[0.50 M]ᵇ

By dividing Rate₁ / Rate₂:

Rate₁ / Rate₂ = k [A₁]ᵃ[B₁]ᵇ / k [A₂]ᵃ[B₂]ᵇ

[1.2 × 10⁻² M/min] / [4.8 × 10⁻² M/min] = k [0.30 M]ᵃ[0.25]ᵇ / k [0.30 M]ᵃ[0.50 M]ᵇ

0.25 = [0.50]ᵇ

Taking log for both sides; log(0.25) = b log(0.5)

b = log(0.25) / log(0.5) = 2.

The reaction is second order with respect to reactant B.

By the same way for reactant A:

From trial 2 & 3:

Reactant [B] has the same concentration in both trials, but [A] has different concentrations and the rate of the reaction changes, so the reaction rate depends on [A].

From trial 2, Rate₂ = k [A₂]ᵃ[B₂]ᵇ, [4.8 × 10⁻² M/min] = k [0.30 M]ᵃ[0.50 M]ᵇ

From trial 2, Rate₃ = k [A₃]ᵃ[B₃]ᵇ, [9.6 × 10⁻² M/min] = k [0.60 M]ᵃ[0.50 M]ᵇ

By dividing Rate₂ / Rate₃:

Rate₂ / Rate₃ = k [A₂]ᵃ[B₂]ᵇ / k [A₃]ᵃ[B₃]ᵇ

[4.8 × 10⁻² M/min] / [9.6 × 10⁻² M/min] = k [0.30 M]ᵃ[0.50 M]ᵇ / k [0.60 M]ᵃ[0.50 M]ᵇ

0.50 = [0.50]ᵃ

Taking log for both sides; log(0.50) = a log(0.5)

a = log(0.50) / log(0.50) = 1.

The reaction is first order with respect to reactant A.

The rate law of the reaction will be: Rate = k [A]¹[B]²

The overall order of the reaction is third order reaction.

2) Determining the rate law constant:

Taking data of trial 1:

Rate = k [A]¹[B]²

[1.2 × 10⁻² M/min] = k [0.30 M]¹[0.25 M]²

k = [1.2 × 10⁻² M/min] / [0.30 M]¹[0.25 M]² = 0.64 M²/min.

So, the rate law will be: Rate = (0.64 M²/min) [A]¹[B]²

Answer:  Very big number

Explanation:

wow

To test the hypothesis that increasing temperature allows more sugar to dissolve, temperature is varied and the solubility of sugar is measured. The solubility usually increases with temperature due to more energetic collisions between solvent and solute molecules. Solubility curves illustrate this relationship and show variability across different solutes.

The hypothesis to be tested is that increasing the temperature of a liquid increases the amount of sugar that can be dissolved. To do so, you would change the Temperature (D) of the solvent and measure the Solubility (C) of a solid. The solubility of most substances, including sugar, depends strongly on temperature. As you increase the temperature, you are giving the solvent molecules more kinetic energy, which results in more collisions with the solute with greater force. This increased collision frequency and force leads to a higher rate at which the solute dissolves. When the solubility limit is reached, additional sugar will not dissolve, indicating that the solution has become saturated.

Furthermore, solubility curves can help to visualize the relationship between solubility and temperature. They show that while the solubility of most solid substances tends to increase with temperature, the magnitude of this effect can vary significantly between different solutes.

Changing the temperature of the solvent increases the solubility of sugar, allowing more sugar to dissolve in warm water. This is demonstrated through solubility curves that show higher solubility at higher temperatures.

Your hypothesis investigates the relationship between temperature and the solubility of sugar in a liquid (solvent). To test this hypothesis, you changed the temperature of the solvent and measured the solubility of the sugar. Generally, as the temperature of a solution increases, it can hold more solute, hence more sugar dissolves in warm water compared to cold water. This can be visualized using solubility curves, which show how solubility changes with temperature.

For example, when a saturated sugar solution is heated, more sugar can dissolve because warm solutions have higher solubility. This demonstrates that increasing temperature generally increases the solubility of many solid substances.

Answer:

The conversion efficiency of a chemical process.

Explanation:

Hope this helps!

Answer:

C. better ways to recycle plastics

Explanation:

Answer:

B. Better ways to recycle plastics

Explanation:

Remember that chemistry studies matter and energy as well as the interactions between them. This means it studies the changes that material substances undergo, how and why substances combine or separate to form another ones. In this case the action of recycling implies a chemical change as the plastic transform not only in a physical way but in a structural one.

This is the reason a chemistry would probaly studie the most efficient way to do it, this means, the way it needs less energy to change.

Answer:

36000 centimeters

Explanation:

If the average speed of a species of tortoise is 0.36 km/h, then it would be 36000 centimeters.

A) A column contains elements with properties which are similar in periodic table.

The vertical section (column) in the periodic table has the similar type of chemical behavior so they are also called as groups or families. The electronic configuration gives the chemical description of the compound.

The chemical compounds in these families have the number of valence electron which is same in the outer cell hence, showing the same chemical properties. Halogens and Nobel gases are the groups of periodic table.

Answer:

As the climate warms, it changes the nature of global rainfall, evaporation, snow, stream flow and other factors that affect water supply and quality. Specific impacts include: Warmer water temperatures affect water quality and accelerate water pollution.

Explanation:

Answer:

if there water pollution the climate will not hange as good it will chang as bad and the animals will be affected as well.sorry if im wrong.

Answer:

Earth's gravity

Explanation:

Atmosphere is formed by the set of different layers of gases together, thus forming atmosphere. The Earth's atmosphere protects us by absorbing the UV rays coming from the Sun. These gases are held together forming an envelop because of the gravity of the Earth. It mainly comprises of 78% of Nitrogen, 20.9% of the oxygen, 0.9% of argon, approximately 0.035% of Carbon dioxide, water vapor, and other gases present in negligible amount.

Gravity is the force which holds the atmosphere together, pulling gases towards the Earth's center and preventing them from dispersing into space.

The atmosphere is primarily held together by gravity, the force that keeps all the planets, stars, and galaxies in space intact. Gravity pulls everything towards the center of the Earth, including the gases that make up our atmosphere. This constant pull prevents the gases that make up the earth's atmospheric layers from dispersing into space. It keeps oxygen, nitrogen, carbon dioxide, and other atmospheric gases near the surface of the Earth which is vital for life to exist.

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Answer:

High temperature

Explanation:

Drastic increase in temperature can cause bonds between atoms to change and reorganise. Temperature furnishes atoms the necessary energy to change position and form new bonds.

Increase in temperature coupled with increasing pressure drives metamorphic mineral changes in rocks. During metamorphic changes, new minerals froms as a result of atoms being reorganized.

Temperature simply provides kinetic energy for atoms to move and reorganize themselves.

Internal stimuli are changes to the inside of ones body. The only choice that occurs on the inside is D) a decrease in oxygen levels in the blood during exercise.

air temperature change, artificial light, and water availability are all EXTERNAL STIMULI  

Hope this helped!

~Just a girl in love with Shawn Mendes

Answer:

Answer:

acid: sulphuric acid (H2SO4)

base: sodium hydroxide (2NaOH)

Explanation:

Final answer:

Sulfuric acid (H2SO4) and sodium hydroxide (NaOH) react to form water and sodium sulfate (Na2SO4) in a neutralization reaction.

Explanation:

The acid and base that react to form water and sodium sulfate are sulfuric acid (H2SO4) and sodium hydroxide (NaOH). The reaction between these two substances is a classic example of an acid-base neutralization, which results in the formation of water (H2O) and a salt, in this case, sodium sulfate (Na2SO4). The balanced chemical equation for this neutralization reaction is:

H2SO4 (aq) + 2NaOH (aq) → Na2SO4 (aq) + 2H2O(l)

Since sulfuric acid is a diprotic acid, it can release two hydrogen ions (H+), and therefore, it requires two moles of the strong base sodium hydroxide, which provides hydroxide ions (OH-), to completely neutralize it. The resulting salt, sodium sulfate, is highly soluble in water.

Answer:

Hydrogen’s nucleus is electron deficient when it bonds with an electronegative atom.

Explanation:

Hydrogen bonding is only possible with hydrogen since Hydrogen’s nucleus is electron deficient when it bonds with an electronegative atom.

Hydrogen bonding is only possible with hydrogen because of its unique properties. When hydrogen bonds with electronegative atoms, it becomes partially positive and attracts the partial negative charge on the other atom, creating a strong electrostatic attraction. Hydrogen bonding is stronger compared to other bonds and is specific to hydrogen.

Hydrogen bonding is only possible with hydrogen because of its unique properties. When hydrogen bonds with a highly electronegative atom like oxygen, nitrogen, or fluorine, it becomes partially positive due to the unequal sharing of electrons. This partial positive charge on hydrogen allows it to attract the partial negative charge on the electronegative atom, creating a strong electrostatic attraction known as a hydrogen bond.

Hydrogen bonding is stronger compared to other types of bonds like covalent or ionic bonds. This is because hydrogen bonding involves the attraction between partially charged atoms, while covalent bonds involve sharing electrons between atoms. The difference in electronegativity and unequal sharing of electrons in hydrogen bonding contribute to its strength and specificity to hydrogen.

In addition to being electronegative, hydrogen is also a relatively small atom. This allows for closer approach between the hydrogen atom and atoms of other elements, maximizing the strength of hydrogen bonds.

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Answer:

the right side of the arrow.

Explanation:

reactants are on left because they are the ones reacting. products are on the right because they are the final products.

Answer:

hypothesis

Explanation:

a question that can be answered wity a hypothesis is a question a scientist can answer

Science can answer questions that can be tested through observations and experiments. It relies on empirical evidence and the scientific method to provide explanations for natural phenomena. Scientific inquiries involve formulating hypotheses, conducting experiments, and analyzing results to draw conclusions.

The realm of science is vast, encompassing everything from the minuscule particles of physics to the vast complexities of biological ecosystems. The types of questions that science can answer are those that can be measured, tested, and observed. Whether it's understanding the laws of physics, exploring chemical reactions, or uncovering the intricacies of living organisms, science seeks to provide concrete explanations based on systematic studies. In essence, science is equipped to answer questions that have the potential for empirical verification and reproducible results. It's this empirical nature that sets scientific knowledge apart from other forms of understanding. However, there are questions that science may not be able to answer, such as those rooted in personal beliefs, morals, and the supernatural, as these cannot be observed or measured in the same way.

Burning wool smells like burning hair while burning cotton smells like burning paper due to the different chemical compositions of these materials.

When burning wool smells like burning hair while burning cotton smells like burning paper due to the different chemical compositions of these materials. Wool is primarily made of protein fibers like hair, so when it burns, it releases similar compounds leading to a similar smell. On the other hand, cotton is composed of cellulose fibers, like paper, so when it burns, it produces a smell akin to burning paper.

Answer:

A + BC → AB + C "single replacement reaction" while ammonia synthesis is a "synthesis reaction".

Explanation:

A single replacement reaction, is a reaction by which one element replaces an/other element in a compound.

It can be represented generically as: A + B-C → A-C + B This will most often occur if A is more reactive than B, thus giving a more stable product.

A synthesis reaction is a type of chemical reaction in which two or more simple substances combine to form a more complex product. The reactants may be elements or compounds, while the product is always a compound.

Example: ammonia synthesis,

N₂ + 3H₂ ⇄ 2NH₃

Answer:

Six electrons.

Explanation:

A carbon atom has six protons, so it must have six electrons.

The carbon atom has a total of six (6) electrons.

Hence, the carbon atom has a total of six (6) electrons.

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Answer:

events that happen over and over form a pattern

Explanation:

An event is the occurrence of something. If an event occurs over and over again following some sort of order the order is known as the pattern. The pattern is the overall structure that an event follows. Without a number of events there is not pattern. However, an event can occur without a pattern. The relationship among events is called a pattern

The amount of CO2 in the atmosphere has increased dramatically due to(mainly) excessive burning of fossil fuels.

Answer:

False. Because atom of the equal chemical factors do no longer have identical mass due to the fact variety of protons inside the nucleus is the equal for all atoms of the same element however the neutron is not.

Isotopes of any given element all include the same range of protons, in order that they have the identical atomic number (for example, the atomic quantity of helium is constantly 2). Isotopes of a given detail include special numbers of neutrons, therefore, special isotopes have one-of-a-kind mass numbers.

All atoms of an element have an equal quantity of protons, and every element has a distinct range of protons in its atoms. As an instance, all helium atoms have two protons, and no different elements have atoms with two protons.

Atoms of a given element are equal in size, mass, and different homes. Atoms of various factors range in size, mass, and different residences. Atoms cannot be subdivided, created, or destroyed. Atoms of different elements can integrate into easy whole range ratios to form chemical substances.

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Answer:

1.67 atm.

Explanation:

where, P is the pressure of the gas in atm (P = ??? atm).

V is the volume of the gas in L (V = 5.0 L).

n is the no. of moles of the gas in mol (n = 0.5 mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (T = 203 K).

∴ P = nRT/V = (0.5 mol)(0.0821 L.atm/mol.K)(203 K)/(5.0 L) = 1.67 atm.

Answer:

D

Explanation:

There are only 2 ways to explain this.

distance

and brightness caused by what it is burning.

A is true but it is not the explanation of why it is true.

B this is actually not true. Other stars would burn much more.

C It is not the largest star. In fact it is in the lower middle.

D is the answer. 93 million miles as these things go, is not every much.

Answer:

I did this and the right answer was D

Explanation:

Answer:

C. 1 proton 3 neutrons

Explanation:

A nucleus is more stable if the ratio of the neutrons to protons is between 1:1 and 1:1.5.

Thus the ratios of neutrons to protons for  the nuclei are as follows

A- 1:1

B- 1:1

C- 1:3

D- 1:2

Among these ratios, C is the greatest thus the nucleus is the least stable.

The nuclei with D. 1 proton and 2 neutrons will be least stable.

Nuclides containing odd quantities of the two protons and neutrons are the least steady and this implies increasingly radioactive.  

Nuclides containing even quantities of the two protons and neutrons are most steady and this implies less radioactive.  

Nuclides contain odd quantities of protons (positive charged particles) and even quantities of neutrons are less steady than nuclides which are containing even quantities of protons and odd quantities of neutrons. By and large, atomic strength is more prominent for nuclides containing even quantities of protons and neutrons or both.

When we add 1 proton with 2 neutrons we get 3 as answer, which means an odd value, thus nuclide with this proportion of proton and neutron is least stable.