From a laboratory process, a student collects 25.0 g of hydrogen and 224.0 g of oxygen. How much water was originally involved in the process?

How many moles are contained in 5.6 l of h2 at stp

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.

An atom that gains or loses one or more electrons is called a(n)