If a substance has a volume of 0.0255 l and a mass of 6.375 x 104 mg, what is the density of the substance in g/ml? 1. 4.00 g/ml 2. 0.400 g/ml 3. 2.50 g/ml 4. 25.0 g/ml

Concerning the 10.0 ml of 0.50 m nacl to 100 ml of solution: when a solution is diluted, does it change the number of moles dissolved?

The reaction q+r2=r2q is found to be first order in r2 and

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