What type of reaction is 4 Fe +3 02 → 2 Fe2O3

Asolution contains 225 g of sodium chloride, nacl, dissolved in enough water to make a 0.25 l of solution. what is the molarity of the solution? a. 3.88 m, b. 1.03 m, c. 1.5 m, d. 15.5 m

In which reaction is precipitation occurring?

What is another way to determine mass times acceleration?