1) Convert 3.45 moles of potassium to grams of potassium. 2) 7.6 x 10²⁴ atoms of krypton gas are collected at STP. How many liters of space will this gas occupy? 3) 314.2 L of hydrogen gas is collected at STP. What is the mass of this sample of hydrogen gas?

What is the relationship of air masses and the temperature of oceans?

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

All of the following are part of the biosphere except