What is the charge of the following polyatomic ions A) Carbonate
B) Nitrate
C) Sulfate
D) Phosphate

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's