Test tomorrow!

Test Questions:

1. The compound Ba₃(PO₄)₂  contains _____ atoms.

       

2.  The compound Ba₃(PO₄)₂  is made from _______ elements.

       

3. The compound Ba₃(PO₄)₂  is considered to be an atom, molecule or formula unit?

4. A 20.0 ounce bottle of FAYGO “Rock ‘n’ Rye is how many milliliters?

20.0 fl. oz  x   ______ pt  x ________qt x _________mL =   ________ mL

                                    fl.oz                 pt                        qt

 Some useful info could be: 

(16 fl.oz. = 1 pt); (453.6 g = 1 lbs); (946.3 mL = 1 qt); (1 in = 2.54 cm);

(16 oz. = 1 lbs.); (2 pts = 1 quart)

Answers

1. 13

2. 3

3.Formula unit

4.  591

What is the percentage of each element in Magnesium Carbonate MgCO3 ?

( The total mass is 84)