The __ increases by 1 as you go left to right across the periodic table. A. Atomic mass
B. Atomic number
C. Number of neutrons
D. Number of ions

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

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.

In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as