1. Form hypothesis: A variable is something that can be changed in an experiment, suc the amount of light. How do you think the amount of light affects how plants grow?
Gizmo

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.

The number at the end of an isotope’s name is the number.

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.