Calculate each of the following quantities.

(a) Total number of ions in 47.8 g of SrF2
(b) Mass (kg) of 4.90 mol of CuCl2 · 2 H2O
(c) Mass (mg) of 2.67 1022 formula units of Bi(NO3)3 · 5 H2O

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. trial 1: trial 2: data mass of empty crucible with lid trial 1: 26.688 trial 2: 26.681 mass of mg metal, crucible, and lid trial 1: 26.994 trial: 2 26.985 mass of mgo, crucible, and lid trial 1: 27.188 trial 2: 27.180