Which of one of these are balanced? Please explain. I'll give brainliest. 1. 3 Al + 2 O2 = 3 Al2 O3
2. 4 NH3 + 5 O2 = 4 NO + 6 H2O
3. 2 Fe S + 7 O2 = Fe2 O3 + 2 SO2

Enzymes affect the reactions in living cells by changing the

What metric units would you use to measure the thickness of a key

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.