Atoms of Ca and F would be expected to react in a ratio of A. 1:1
B. 1:2
C. 2:1
D. 3:1

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.