An element initially weighed 3.555 g. when it was burned in oxygen an oxide compound was produced. the product mass was 4.666 g.

a.) what is the mass of oxygen in the product?

b.) what is the mass percent of oxygen in the product? show all work ( including working formula, setup and unit).

Some molecular compounds, such as hcl, ionize completely in solution. for molecular compounds such as h2co3, most molecules do not ionize in solution. which describes the properties of these two solutes? a. hcl and h2co3 have the same effect on the properties of the solution. b. hcl raises the freezing point of water more than h2co3 does. c. hcl raises the boiling point of water more than h2co3 does.