Explanation:
(1)
True
The winds are significant in the distribution of heat across the globe. There are global air circulations around the world such as the Hadley and polar cells that take heat from the hotter regions to the cooler regions. This is driven by high and low-pressure systems on earth that are influenced by the sun. Cooler air masses move from the high-pressure system and displace the warm winds in the low-pressure systems. This helps in maintaining a heat balance on earth.
(2)
False
The geosphere not only includes all the rocks on the surface of the earth but also the whole of the lithosphere ( or crust), which also includes all the landforms on earth. All the rocks and minerals in the interior of the earth are also part of the geosphere, including the process – such as the convection currents of the mantle- that helps in the shaping of the earth's surface.
(3)
A.
In a storm, the heat from the hydrosphere which is transferred to the atmosphere via the heat of evaporation is what feeds the storm. Therefore these two spheres not only share distribution of heat energy but also water. When the storms dissipate the heat and its water from the clouds, the water flows back to the hydrosphere and the cycle continues.
(4)
True
The biosphere includes all the living and biotic components on earth. Therefore even the marine animals in the oceans are part of the biosphere. They are one aspect that signifies the interaction betwene the hydrosphere and the biosphere. These organisms draw oxygen, water and minerals from the hydrosphere which is important or life.
(5)
True
However, the atmosphere is not the only sphere that distributes heat across the globe. So does the hydrosphere. The ocean's currents are very significant with this regard just as are air currents, The warm surface currents from the equator distribute heat towards the poles while cooler deeper currents flow towards the equator from the poles – maintaining a heat balance on earth.
(6)
D.
When a volcano erupts, gases -like sulfur dioxide and carbon dioxide- and pyroclasts from deep in the earth rocks (geosphere) are spewed into the atmosphere. This is an example of how these two spheres of the earth interact.
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In an aqueous solution, the solute is the part of the solution that is being dissolved in water.
True or False?
How is the earth like a gigantic recycling center
Answer: The earth is like a recycling center because as things are being used other organisms can use their waste to live.
Explanation: The cycle is cyclic allowing for the cycle to never end unless things are destroyed.
Earth is compared to a gigantic recycling center due to its natural recycling processes like the water and carbon cycles, and human-driven recycling practices. While recycling reduces environmental impact compared to using primary resources, challenges such as plastic waste remain significant, exemplifying Earth's complex role in managing and recycling its resources.
Explanation:The Earth can be likened to a gigantic recycling center due to its processes that replicate recycling. Much like a recycling center, the Earth undergoes continuous cycles of using, reusing, and disposing materials. For example, within the water cycle, water is evaporated, condensed, and precipitated repeatedly, ensuring it's continuously recycled. The carbon cycle sees carbon atoms move from atmosphere to plants, to animals, and back to the atmosphere. This demonstrates Earth's natural capacity to recycle nutrients and elements, keeping ecosystems functioning.
Beyond natural cycles, human activities also contribute to Earth's role as a recycler. Material recycling, including metal and paper, has environmental impacts but is still favorable compared to using primary resources. The energy required for recycling metals, especially aluminum, is less than that for extracting and processing the raw materials. Recycling paper saves trees, a vital resource, and maintains biodiversity. However, plastic recycling is less efficient in terms of energy and resource use, so reducing its use is preferable.
Challenges arise when the conversation turns to the sheer volume of waste humans produce, like over 300 million metric tons of plastic annually, some ending up in places like the Great Pacific Garbage Patch. Despite recycling efforts, the quest for waste management solutions persists. These facts showcase Earth's extensive recycling mechanisms, both natural and human-driven.
in a combustion reaction at standard temperature and standard pressure,C2H6 reacts completely with 17.9 L of oxygen. what mass in grams of water vapor is produced?
Answer: 12.3 g H2O
Explanation: solution attached:
How many grams of aluminum are needed to reacr completely with 4.5 mol of FeO
Final answer:
To react completely with 4.5 moles of FeO, 81.0 grams of aluminum are required, based on the stoichiometry of the chemical equation and the molar mass of aluminum.
Explanation:
To find out how many grams of aluminum are needed to react completely with 4.5 mol of FeO, we need to first examine the specific reaction between aluminum (Al) and iron(III) oxide (Fe₂O₃). The balanced chemical equation is:
2 Al(s) + 3 FeO(s) → 3 Fe(s) + Al₂O₃(s).
From this equation, we can deduce that 2 moles of Al are needed to completely react with 3 moles of FeO. Therefore, for 4.5 moles of FeO, the molar ratio of Al to FeO (2:3) indicates that (4.5 mol FeO) × (2 mol Al / 3 mol FeO) = 3 mol Al are required.
The molar mass of Al is 27.0 g/mol. To convert moles of Al to grams, we multiply the moles of Al needed by the molar mass of Al:
3 mol Al × 27.0 g/mol = 81.0 g Al.
Thus, 81.0 grams of aluminum are needed to react completely with 4.5 mol of FeO.
How many moles are in 22 grams of neon?
Answer:
0.9911 mol
Explanation:
What is the difference in electronegativity of each bond for both formaldehyde and ammonia?
Answer:
The chemical formula of Formaldehyde is H₂CO and the structural formula is attached below,
The chemical formula of Ammonia is NH₃ and the structural formula is attached below,
FORMALDEHYDE:
As shown in structure, there are two different types of bonds in formaldehyde,
(i) C-H Bond
(ii) C-O Bond
So the electronegativity difference of these bonds are,
(i) C-H Bond
Electronegativity of Carbon = 2.5
Electronegativity of Hydrogen = 2.1
_______
Electronegativity Difference = 0.4 (non-polar bond)
(ii) C-O Bond
Electronegativity of Oxygen = 3.5
Electronegativity of Carbon = 2.5
_______
Electronegativity Difference = 1.0 (polar bond)
AMMONIA:
As shown in structure, there is one type of bond in ammonia, and that is N-H bond
So the electronegativity difference in this bond is,
N-H Bond
Electronegativity of Nitrogen = 3.0
Electronegativity of Hydrogen = 2.1
_______
Electronegativity Difference = 0.9 (polar bond)
What is the mass(g) of 9.00 moles of water?
Hey There !:
Molar mass of H₂O = 18.01 g/mol
Therefore:
1 mol H₂O ----------------- 18.01 g/mol
9.00 moles ---------------- ( mass of H₂O )
mass of H₂O = 9.00 x 18.01 / 1
mass of H₂O = 162.09 / 1
mass of H₂O = 162.09 grams
I hope that it helps !
Calculate the mass for 3 moles of ammonia.
Answer: 51g
Explanation:
n = m/M (where 'n' is the number of moles, 'm' is the mass and 'M' is the molar mass)
n = 3 moles (Given in the question)
M = 17
(This is because nitrogen has a relative mass of 4u and hydrogen has a relative mass of 1u)
We can rearrange the equation and get that
n * M = m
Therefore, 3 * 17 gives you the mass of 3 moles of ammonia
Which is 51g.
Answer: 51g
Explanation:
To solve for the mass of 3 moles of ammonia(NH3), let's get the mass of 1 mole of ammonia(NH3)
1mole of ammonia (NH3) = 14 +(3x1) = 17g.
Therefore,
3 moles of NH3 = 3 x 17 = 51g
Please help, don't understand this topic
Answer:
Pangaea
Alfred Wegner
plate tectonics
Explanation:
What did Earth look like 250 million years ago? The continents of Earth were clustered together in formation that a scientist named Pangaea.The scientist that named "Pangaea" was a German scientist by the name of Alfred Wegner. He theorized that "Pangaea" split apart and the different landmasses, or continents, drifted to their current locations on the globe. Wegener's theories of plate movement became the basis for the development of the theory of plate tectonics.
What is the kinetic energy of the ball as it is half way through the fall?
Answer & Explanation:
As the ball falls towards the ground, its gravitational potential energy is transformed into kinetic energy. The kinetic energy of an object is the energy it possesses due to its motion.
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The diagram below shows the structure of an animal cell.
The image of an animal cell is shown with some organelles labeled numerically from 1 to 6. The outer double layer boundary of the cell is labeled 1. A stacked disc like structure is labeled 2. A broad rod shaped structure with an irregular shape inside it is labeled 3. The entire plain section that forms the background of the cell and is within the outer boundary is labeled 4. A small circular shape within the large circular shape is labeled 5. The large central circular shape is labeled 6.
Which number label represents the mitochondria?
1
2
3
6
Answer:
3, the mitochondria has a certain shape and number 3 has the same shape.
Explanation:
Answer: It is number 3
Explanation: I am doing the test right now
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ireally need help
Most substances _______ in temperature and _______ when heat is added to them.
A.
decrease; contract
B.
increase; expand
C.
increase; contract
D.
decrease; expand
What is the mass of 187 liters of CO2 gas? The volume is measured at STP.
The mass of 187 liters of CO2 gas is 0.36 g.
Explanation:
The molecular weight of CO2 is 44 g / mol.
1 kg of CO2 = 1000 g [tex]\times[/tex] ( 1 mole / 44 g) = 22.7 mole of CO2.
By using the ideal gas equation,
PV = nRT
V = nRT / P
where P represents the pressure,
V represents the volume,
T represents the temperature,
R represents the ideal gas constant,
n represents the amount of substance.
V = (22.7)[tex]\times[/tex](0.0821)[tex]\times[/tex](273.15) / 1
V = 509.6 L of CO2 at STP
Mass = (187 L of CO2 gas) / (509.6 L of CO2 at STP)
= 187 / 509.6
mass = 0.36 g
To find the mass of 187 liters of CO2 gas at STP, we calculate the number of moles using the molar volume of 22.4 L/mol and then multiply by the molar mass of CO2 (44.01 g/mol) to get a mass of approximately 367.34 grams.
The mass of 187 liters of CO2 gas at STP (standard temperature and pressure) can be calculated by first determining the number of moles of CO2. The molar volume of an ideal gas at STP is 22.4 liters, so by dividing the volume of the gas by the molar volume, we can get the numbers of moles.
Here's the calculation:
Number of moles of CO2 = Volume of CO2 / Molar Volume at STP = 187 L / 22.4 L mol-1
Number of moles = 8.348 moles (rounded to three decimal places)
The molar mass of CO2 is 44.01 g/mol, so now we can calculate the mass:
Mass of CO2 = Number of moles× Molar Mass = 8.348 moles ×44.01 g/mol
Mass = 367.34 g (rounded to two decimal places)
The mass of 187 liters of CO2 gas at STP is approximately 367.34 grams.
What is the combination of
Cu(s) +S(s)
Explanation:
Combination reaction
It is a reaction in which some substances or reactants combine to form a single substance or we can all it as single product .
Like : A + B --> C+D
This combination can be between a element and a element like :
H₂ +O₂--> H₂O
It can be between element and a compound like :
SO₂ + O₂---> SO₃
It can be between a compound and a compound like :
H₂O + CO₂---> H₂CO₃
In the above asked question , the combination is between Cu and a sulphur that is element and a element that is :
Cu + S ---> CuS
(copper sulphide )
When the fluid cools, the kinetic
energy of the inolecules decreases. This causes the
molecules to slow down and move closer together. Sines
the molecules are closer together, the density of the fluid
increases and the fluid sinks.
The kinetic energy of the molecules decreases
The molecules slow down
The molecules move closer together
The density of the fluid increases
The fluid sinks
Answer:
all of em
Explanation:
Final answer:
When a fluid cools, the density increases as molecules move closer together due to a decrease in kinetic energy, causing the fluid to sink.
Explanation:
Density of the fluid increases as the temperature decreases and molecules move closer together due to a decrease in kinetic energy, causing the fluid to sink. This phenomenon is observed in various liquids, including water, where as the temperature drops, the density of the liquid increases.
At low temperatures and pressure, how does the volume of a real gas compare with the volume of an ideal gas under the same conditions?
Answer:
It is less
Explanation:
At low temperatures and pressures, the volume of a real gas is generally smaller compared to the volume of an ideal gas under the same conditions.
This is due to the fact that real gases exhibit intermolecular interactions, such as attractive forces between the gas molecules. These interactions cause the gas particles to be closer together and occupy a smaller volume compared to an ideal gas, which assumes no intermolecular forces and occupies a larger volume.
At low temperatures, the kinetic energy of gas particles decreases, and the intermolecular forces become more significant. This leads to a reduction in the overall volume of the gas as the particles are more closely packed.
Therefore, at low temperatures and pressure, the volume of real gas is smaller than ideal gas.
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A doctor orders 2.0 mg of morphine. How many mL of morphine should you
administer to a patient, if a vial of morphine is 10.0 mg per 1.0 cm3?
Answer:
Morphine Sulfate 10 mg/ml solution for injection
Explanation:
Each ml of solution for injection contains 10 mg Morphine Sulfate
This medicine contains a maximum of 3.3 mg of sodium per each 1 ml ampoule.
Which theory describes the motion of and force driving earth’s plates?
A. First law of motion
B. Third law of motion
C. Continental Drift
D. Plate tectonics
The theory of Plate Tectonics describes the forces and motion of Earth's plates. This theory explains the movement of the Earth's crust on a semi-fluid layer beneath, resulting in geographical phenomenon like earthquakes and mountain formations.
Explanation:The theory which describes the motion of and the forces driving the Earth's plates is D. Plate Tectonics. The Plate Tectonics theory encompasses the concept of the Earth's crust being made up of large pieces, known as plates, that float on a semi-fluid layer underneath. Over time, these plates shift, bump into each other, or even slip beneath one another, causing many of the Earth's major geographical features such as mountains, valleys, earthquakes and volcanoes. This theory has greatly contributed in our understanding of the Earth's geology, and it complements A. First Law of Motion and B. Third Law of Motion, which are principles from Physics that describe general motion and forces, not specifically Earth's plates.
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HCl + ca(oh)2 - - -??
2 HCl + Ca(oh)2 ---------- CaCl2+ 2 H2O
Answer:
2HCl + Ca(OH)2 -> CaCl2 + 2H2O
Explanation:
This is the balanced equation for this problem the original answer was not balanced properly
A container of gas is initially at 0.750 atm and 45 C. What will the pressure be at 105 C?
A) 0.496 atm
B) 55.9 mmHg
C) 39.5 mmHg
D) 359 atm
The answer can be solved using Gay-Lussac's law. Relevant values are plugged into the formula where P1/T1=P2/T2 and solving for P2 yields 0.890 atm.
Explanation:This is a chemistry problem related to the Gas Law, specifically, Gay-Lussac's law, which states that the pressure of a gas is directly proportional to its temperature, provided its volume remains constant.
Since the problem does not mention a change in volume, we can assume it's constant. The formula for Gay-Lussac's law is P1/T1=P2/T2, where P is the pressure, T is the temperature, and subscripts 1 and 2 refer to the initial and final conditions.
We are given: P1 = 0.750 atm, T1 = 45 C = 318.15 K (converted to Kelvin using the formula K = C + 273.15), and T2 = 105 C = 378.15 K. We are asked to solve for P2.
Plug these values into the formula: (0.750 atm / 318.15 K) = P2 / 378.15 K. By cross-multiplying and dividing, we solve for P2: P2 = (0.750 atm x 378.15 K) / 318.l5 K = 0.890 atm.
None of the given choices match the calculated answer, suggesting there may be a typo or error in the question.
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Balance Decomposition NH3 =
Answer: 2 NH3 => 2 N + 3 H2
Explanation: The equation is now balanced.
2 atoms of N in both the reactant and product side and 6 atoms for H on both sides.
PLEASE HELPP
Tell me everything you know about "balancing the equation" for science
How many molecules are there in 2.3g Of carbon
Answer: 1.15x10²³ molecules C
Explanation: solution attached:
Convert mass of C to moles using its molar mass then multiply to the Avogadro's number.
Which of these is an example of investigating an intensive property?
weighing sand in a bag
measuring the length of wire
determining if a rock is magnetic
recording the volume of water in a cylinder
Determining if a rock is magnetic is an example of investigating an intensive property.
C. determining if a rock is magnetic
Explanation:
Intensive properties don't rely upon the measure of the substance present. A few instances of serious properties are shading, taste, and dissolving point. Partitioning one broad property by another broad property, by and large, gives a concentrated worth—for instance, mass (broad) isolated by volume (broad) gives thickness (escalated). The proportion between the two broad properties is a concentrated property. For instance, mass and volume are broad properties, however, their proportion (thickness) is a concentrated property of issue.
Intensive properties are independent of the amount of substance present. The example of investigating an intensive property given is 'determining if a rock is magnetic'. This is distinguished from extensive properties, like mass, length, and volume.
Explanation:An intensive property is a property of a substance that does not depend on the amount of the substance present. They include properties like temperature, color, hardness, melting point, boiling point, pressure, molecular weight, and density. Among the examples provided, the one that involves an investigation of an intensive property is 'determining if a rock is magnetic'. Whether a rock is magnetic or not is independent of the amount of material you have.
This is contrasted with extensive properties, which do depend on the amount of the substance present. Examples of these would include mass, length, and volume—all options provided except determining if a rock is magnetic.
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What is the kinetic energy of the ball just before it hits the ground?
Answer:
1 joule
Explanation:
If you drop a softball from just above your knee, the kinetic energy of the ball just before it hits the ground is about 1 joule
Answer:
When the ball is held up, it has a lot of potential energy and no kinetic energy. As it falls, it starts losing it's potential energy and speeds up to get more kinetic energy. When it hits the floor it has no potential energy, but lots of kinetic energy.
Aqueous hydrochloric acid (HCI) will react with sodium hydroxide (NaOH) to produce and liquid water (H2O). Suppose 1.1 grams of hydrochloric acid is mixed with 0.420 grams of sodium hydroxide. Calculate the maximum mass of sodium chloride that could be produced by the chemical reaction. Round your answer to 3 significant digits
The maximum mass of NaCl is 0.54 g.
Explanation:
The reaction can be represented with the following equation:
HCl + NaOH ----> NaCl + H2O
According to the equation, equal amounts of chemical agents and resultant products (in moles) participate in this reaction.
The amount of hydrochloric acid is as follows:
[tex]v_{HCl} = \frac{m_{HCl} }{M_{HCl} }[/tex] [tex]= \frac{m_{HCl} }{A_{H} + A_{Cl} }[/tex]
= 1.1 / (1 + 35.46)
[tex]v_{HCl}[/tex] = 0.030 moles.
where m is the mass,
A is the atomic mass of an element.
The amount of sodium hydroxide is as follows:
[tex]v_{NaOH} = \frac{m_{NaOH} }{M_{NaOH} } = \frac{m_{NaOH} }{A_{Na} + A_{O} + A_{H} }[/tex]
= 0.420 / (23 + 16 + 1)
= 0.0105 moles.
Since the amount of sodium hydroxide exceeds the amount of hydrochloric acid, the maximum amount of each substance participating in the reaction is v = [tex]v_{HCl}[/tex] = 0.030 moles.
Therefore, the maximum amount of water that can be produced is as follows:
[tex]m_{H2O} = M_{H2O} \times v_{H2O} = (2A_{H} + A_{O} ) \times v[/tex]
= (2 [tex]\times[/tex] 1 + 16) [tex]\times[/tex] 0.030 = 0.54 g.
The maximum mass of NaCl is 0.54 g.
how do you do ionic equations
Answer:
Ionic equations and net ionic equations are usually written only for reactions that occur in solution and are an attempt to show how the ions present are reacting. While ionic equations show all of the substances present in solution, a net ionic equation shows only those that are changed during the course of the reaction.
Explanation:
example: Mg + 2 HCl MgCl2 + H2
An experiment applies heat to a substance and produces a gas that is a new
and different substance. Choose the true statement.
O A) This represents a physical change only.
OB) This represents a chemical change only.
OC) This represents both a physical and a chemical change.
OD) This represents neither a physical change nor a chemical change.
The correct answer is (B) This represents a chemical change only.
The fact that a gas is produced in a new and different substance indicates a chemical change. Chemical changes denote the formation of new substances having their own set of chemical qualities. When heat is applied to the substance, it undergoes a chemical reaction giving birth to a given gas.
This transformation entails the rearrangement of atoms and the breaking or formation of chemical bonds. Physical changes, on the other hand, do not alter the chemical composition of a substance. They have changes in physical properties like shape, size, or state of matter without actually forming new substances.
Since the production of another gas indicates a chemical change, the correct statement amidst these options is that the scenario reflects such (option B).
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When a single celled organism copies its own DNA and splits into two new daughter organisms it is called
binary fission
external reproduction
fragmentation
regeneration
Answer:
binary fission
Explanation:
Using the periodic table, which of the following chlorides is ionic?
Explanation:
Using the periodic table, to predict the chloride that is ionic or not, we should first understand how ionic compounds are formed.
Ionic compounds are formed between a highly electronegative element and less electronegative one.
It is usually a bond formed between metals and non-metals. Metals are on the left block and non-metals on the right block. In the formation of this bond type, a metal loses its excess electrons and becomes positively charged. A non-metal gains the electron and becomes negatively charged. The electrostatic force of attraction between the two species causes the formation of ionic bonds. Ionic bonds forms between metals and non-metals with appreciable electronegative differences.learn more:
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