Answer:
2. What must be done to carbon dioxide gas to change it to a solid?.
Carbon dioxide is a gas by using a metal to solidify it
3. Which is colder, dry ice or carbon dioxide gas?
Carbondioxide gas
If dry ice is placed in water, we see bubbles rise.
4. These bubbles are made of
gaseous substance in the gaseous state.
5. What happens to the size of the dry ice as the bubbling goes on?
the size of the dry ice reduces as a result of conversion of solid to liquid form
Explanation: