If you start with 62.5 grams of CaCO3, how many grams of ZnCO3 will be produced? Identify the mole ratio
3 CaCO3 + Zn3(PO4)2 → Ca3(PO4)2 + 3 ZnCO3

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

d.) circle motion requires a force to give it a centripetal acceleration.

answer; talc and gypsum;