What effect does a catalyst have on a reaction? O A. A catalyst increases the concentrations of products.
O B. A catalyst makes it possible for a reaction to happen.
O C. A catalyst speeds up the rate of a reaction.
O D. A catalyst contributes energy to a reaction.

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

Bose-einstein condensation occurs at what temperature?

Asample of ammonia reacts with oxygen as shown. 4nh3(g) + 5o2(g) 4no(g) + 6h2o(g) what is the limiting reactant if 4.0 g of nh3 react with 8.0 g of oxygen? o2 because it produces only 0.20 mol of no. nh3 because it produces only 0.20 mol of no. o2 because it produces two times less no than nh3. nh3 because it produces three times more no than o2.