Ground water has some minerals dissolved in it. If you heat this water, collect the vapor in another container, and then cool it, you will get pure, or distilled, water. What makes this process a physical change?It forms a new substance (minerals), which is a physical change.

It forms a new substance (water vapor), which is a physical change.

It changes the color of water, which is a physical change.

It changes the molecular structure of water, which is a physical change.

It separates dissolved substances, which is a physical change.

Answers

Answer 1

Answer:

Answer: the last choice, It separates dissolved substances, which is a physical change.

Explanation:

Physical changes do not modify the composition of the substances.

The substances that undergo a physical change do not brake or form chemical bonds, they just modify ther appearance: the size, the physical state (solid, liquid, or solid), the density, the shape, that kind of properties.

The salts dissolved and the water will have the same chemical propertiesin solution and after being separated, so they have not had a chemical change, they have only changed their appearance, so this explains why it is a physical change.

Answer 2

Answer: nah bruh its the last option. that's the only one that could even be just a physical change. E

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Answers

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Answers

The answer is (1) 1.3 M. The first thing you need to do is to convert the unit of gram to mole. The mol number of LiF is 52/26=2 mol. Then using the volume to calculate the molarity: molarity=2/1.5=1.3 M.

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