Asample of gas contains 0.1900 mol of h2(g) and 9.500×10-2 mol of o2(g) and occupies a volume of 10.1 l. the following reaction takes place: 2h2(g) o2(g)2h2o(g) calculate the volume of the sample after the reaction takes place, assuming that the temperature and the pressure remain constant. l

The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.