For the hypothetical compound ax2 which statement is true

a. a is a nonmetal from group 3, and x is a metal from group 1.

b. a is a metal from group 1, and x is a metal from group 7

c. a is a metal from group 3, and x is a nonmetal from group 5

d. a is a metal from group 2, and x is a nonmetal from group 7 < -- i believe this is correct.

How many grams of ammonia would be produced by the decomposition of 16.93 mlof hydrazine? (the density of hydrazine is 1.021g/ml)

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?

How do you convert celsius to kelvins