Properties of pure substances, Substance X and Substance Y, are given below. Substance X reacts with air
Substance Y reacts with air and water
Substance X and Substance Y react to produce Substance Z

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

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

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?