Explain why water expands when it freezes.

What are 3 ways that cells use energy?

What is the process that causes rust?

What type of acid is found in the human stomach?

What is the difference between an endergonic and an exergonic reaction?

Explain two ways hydrocarbons can be harmful.

What do photosynthesis and cellular respiration have in common?  Which reaction is endergonic?

Balance the following equation:  H2 + O2  →   H2O

What happens to the demand for gasoline when the price of electric cars, a substitute, decreases significantly?

Supply tends to be __________ in local markets and __________ in global markets.