Temperature and Energy in Changes

Questions

1. MultiChoice

   What happens to energy during an exothermic chemical reaction?

2. MultiChoice

   An instant cold pack gets cold when activated because it undergoes an:

3. MultiChoice

   Adding heat energy to ice causes what physical change?

4. MultiChoice

   What role does temperature usually play in chemical reactions?

5. MultiChoice

   Which process absorbs heat energy from its surroundings?

6. MultiChoice

   When a hand warmer packet gives off heat for hours after opening, it is performing an:

7. MultiChoice

   Removing heat energy from steam causes it to undergo:

8. MultiChoice

   Which statement about thermal energy and changes is correct?

9. WordsBox

   An ____ reaction releases heat into its surrounding ____

10. WordsBox

    An ____ reaction absorbs thermal ____ causing temperature to drop.

11. WordsBox

    Adding ____ energy causes solid wax to melt into liquid wax through a ____ change.

12. WordsBox

    Higher ____ generally cause chemical reactions to occur at a faster ____