Answer:
c. contraction
Explanation:
Heating will cause substances to expand, or change their state (like solid to liquid) or it may be a chemical reaction.
Answer:
<h2>12 atm</h2>
Explanation:
To find the initial pressure we use the formula for Boyle's law which is

Since we are finding the initial pressure

From the question we have

We have the final answer as
<h3>12 atm</h3>
Hope this helps you