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