We Do 1. How many moles of compound are in the following?
a. 6.60 g (NH4)2SO4
I
2. How many molecules are in the following?
a. 25.0 g H2SO4
3. What is the mass in grams of 6.25 mol of copper (II) nitrate

Noble gases are the most reactive elements on the periodic table. a. true b. false

Write a hypothesis that answers the lesson question, “while observing a chemical reaction, how can you tell which reactant is limiting? ” hypothesis: if a substance is the limiting reactant, then . . because . .

Compare and contrast the bohr model and the electron cloud models of the atom.