Which of the following statements about melting is TRUE?

Both mass and weight provide a measure of the amount of matter. Why is mass the preferred measure of the amount of matter?

Which of the following statements about condensing is TRUE?

What is the term for a prediction plus an untested explanation (proposal) that attempts to explain the observations made during preliminary experimentation?

What is the specific name of the state/phase change for the change of a liquid to a gas upon application of an additional artificial heat source?

Identify the following as a metal, nonmetal or semimetal/metalloid:  arsenic (As)

A sample of matter is heated. Explain in words what is happening to the sample of matter using the terms heat energy, motion/speed, kinetic energy and temperature. Right answer in complete sentences for full credit.  (4 points)

Identify whether the following statement is a Theory or a Law: If the volume of a gas doubles, the pressure decreases by a factor of two when the temperature remains constant.

Determine whether the following statement is TRUE OR FALSE: Liquids have constant shape but do not have constant volume.

What is the difference between a scientific theory and a natural law?