The reactants of a chemical equation are 3H2 and Nz. Which set of atoms must make up the equation's products so that the equation models the law of
conservation of mass?
A. 2 H and 2 Na
B. 4 Hg and 3 N
C. 6 H and 2 N
D. 8 H and 2 Na

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