Calculate the volume of 0.20 mol dm sodium hydroxide solution that would be needed to neutralise 10.0 cm of hydrochloric acid with a concentration of 0.50 mol dm​

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.

What physical property of gold makes panning a useful way to get gold from streams?