7. Ammonium sulfate is widely considered to be the most important fertilizer in the world. It can be made according to the following reaction:
2 NH3(aq)+ 1 H2(SO4)(aq) = 1(NH4)2(SO4)(aq)
How many grams of ammonium sulfate could be theoretically made if 250.0 mL of a 4.00M solution of
NH3 are reacted with 500.0 mL of a 2.00M solution of sulfuric acid? Which reactant is your limiting
reactant?
If 45.5 grams of ammonium sulfate are actually made, what is your percent yield?

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.

answerca air mass;

it would only be the stuff in module eight so you need to study all the lessons in that you also could check the flvs

hope this : )