If it takes 75.0 mL of 1.86 M nitric acid to completely neutralize 350.0 mL of calcium hydroxide, what is the concentration of the calcium hydroxide?​

What is the mass of 0.46 mol of mgcl2

Which tool is least in predicting weather

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.