Question

Sample Response: If temperature and surface area increase, then the time it takes for sodium bicarbonate to completely dissolve will decrease, because increasing both factors increases the rate of a chemical reaction.

Which of the following did you include in your hypothesis? Check all that apply.

The “if” part of your hypothesis refers to changing the temperature and the surface area.
The “then” part of your hypothesis refers to a measureable difference in time.
The “because” portion of your hypothesis connects temperature and surface area to the reaction rate

Answer 1

All three.

- The “if” part refers to changing temperature and surface area.
- The “then” part refers to a measurable difference in time (time to completely dissolve).
- The “because” part links temperature and surface area to the reaction rate.