H2O + C --> H2 + CO2 1. Balance the equation,
2. what type reaction is this

A) 4:2:4:2
Decomposition

B) 2:1:2:1
Double Replacement

C) 1:1:1:2
Single Replacement

D) 2:1:2:1
Single Replacement

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

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