Which type of reaction occurs in the following equation?
2no, 9) + 20h (aq)
→ no2(aq) + no3(aq) +h2o(1)
to
02
a combination redox reaction
a displacement redox reaction
a synthetic redox reaction
a disproportionation redox reaction

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

Which of the following substances is the most soluble in water? a. sodium chloride b. methane c. bromine d. carbon