Which of the following is a balanced chemical equation?
2 mg + hc1 → mgcl2 + h2
so2 + o2 + 2 h2o → 4 h2so4
2 fe2o3 + 3 c → 4 fe + 3 co2
h2o2 → h2o + o2

50 pts plz what is the physical state of matter of baking soda.

What are the variables in gay-lussac’s law? pressure and volume pressure, temperature, and volume pressure and temperature volume, temperature, and moles of gas

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