Which chemical equation is a decomposition reaction? a.2H2O (l)  H2(g) + O2(g)

b. Zn(s) + HCl (aq)  ZnCl2(aq) + H2(g)

c. Al4C3(s) + H2O(l)  CH4(g) + Al(OH)3(s)

d. CH4 (g) + 2O2(g)  CO2(g) + 2H2O(g)

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.

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?