Na2CO3 + CaCl2 = CaCO3 + 2NaCl

What is the limiting reactant and theoretical yield of this equation?

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

In pqr m< p=60 m< q= 30 and m