The density of an unknown gas at STP is 1.63 g/L. Is the gas H2(g), N2(g), HCl(g), or CO2(g)

Which of the following statements about acidic water is true? a. acid has no effect on the h, o molecules. b. the solution contains a larger number of oh ions than h, o ions. c. the solution contains a larger number of h, o ions than qh ions. d. the solution contains an equal number of h, o ions and oh ions. none of the above e.

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

Calculate the number of molecules present in 0.750 mol of mgo.