How are sublimation and evaporation. similar
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The mass of acetone is 6.52 g and its density is 0.791 g/mL.
The density of a substance is defined as its mass per unit volume. It is mathematically written as:
Rearranging above equation,
Putting the values,
Therefore, volume of acetone will be 8.24 mL.
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Answer:Na
Explanation:
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If we used the third method it would change liquid into a gas which is strange according to the task.
And observing (even for a long time) won't help separating.
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H₂SO₄ = 98.0 g/mol
H₂SO₄ + 2 NaCl = 2 HCl + Na₂SO₄
98.0 g H₂SO₄ -----------> 2 x 58.44 g NaCl
? g H₂SO₄ ------------> 23.0 g NaCl
Mass of H₂SO₄ = 23.0 x 98.0 / 2 x 58.44
Mass of H₂SO₄ = 2254 / 116.88
=> 19.284 g of H₂SO₄
hope this helps!
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In a chemical change, the molecules in the reactants interact to form new substances. In a physical change, like a state change or dissolving, no new substance is formed.
hope this helped
Final answer:
Molecules move to the location of a chemical change due to the process of diffusion. In this physical phenomenon, molecules move from an area of high concentration to an area of lower concentration. This diffusion leads to interaction between reactant molecules causing the chemical change.
Explanation:
The movement of molecules to the location of a chemical change is a fundamental concept in Chemistry. In a chemical reaction, molecules move due to a physical phenomenon known as diffusion. Diffusion is the process by which molecules of a substance move from an area of high concentration to an area of lower concentration. For example, if you open a perfume bottle at one end of a room, eventually the perfume molecules will spread throughout the room. These perfume molecules move to areas of lower concentration via diffusion. In the context of a chemical reaction, the reactant molecules diffuse to interact with each other, leading to the chemical change or reaction.
Learn more about Diffusion here:
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