X-rays passing through your skin are an example of the of light.
a. scattering
b. absorption
c. transmission

answer:

transmission of light

explanation:

a chemical change, because a gas was produced

Explanation:

A physical change is defined as a change in which a change in shape, size takes place. No new substance gets formed in these reactions.

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Indicators of a chemical reaction are as follows:

1. Energy absorption or release

2. Evolution of gas

3. Change in color

4. Formation of precipitates