Freeman ap chem chap 3&4
in .40 mol of H2 and .15 mol of O2 were to react as completely as possible to produce H2O what mass of reactant would remain
A. .20 g of H2
Which of the following is the balanced net ionic equation for the reaction between Li(s) and water?
B
A sample of a compound that contains only he elements C, H, and N is completely burned in O2 to produce 44.0 g of CO2, 45.0 g of H2O, and some NO2. a possible empirical formula of the compound is
B. CH5N
a .20 mol of sample of MgCl2 (s) and a .10 mol sample of KCL(s) are dissolved in water and diluted to 500mL what is the concentration of Cl-1 in the solution?
D. 1.0 M
in which of the following compounds does sulfer have an oxidation state of +4
b. h2so3
beaker x and y each contain 1.o L of solution, shown above. a student combines the solutions by pouring them into larger previously empty beaker z and observes the formation of a white precipitant. assuming the volumes are additive , whitch of the following sets of solutions could be represented by the diagram above?
d.
during the course of the experiment, which of the following happens to the NO3- ions
d. they remain dissolved in the filtrate solution