Oulouu19 ciuui
paige heated 3.00 g mercury (ii) oxide (hgo,
216.59 g/mol) to form mercury (hg, 200.59 g/mol)
and oxygen (o2, 32.00 g/mol). she collected 0.195
g oxygen. what was the percent yield of oxygen?

If a || b and e || f, what is the value of y ?

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases