Asolution of nitric acid was analyzed and found to have a density of 1.061g/ml. a 20.05 ml was completely neutralized by 40.10 ml of 0.4100 m koh. what is the mass percent of nitric acid in the solution?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

How do you know when a chemical reaction has occurred

3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.