Calculate the average atomic mass of lithium if 7/3 Li has a mass of 7.0160 amu and 6/3 Li has a mass of 6.0151 amu and 7/3 Li has a percent abundance of 92.5% and 6/3 Li has a percent abundance of 7.5%

The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j