We can use a gas syringe to measure the reaction of metals with dilute acid. When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas. We can measure the rate of the reaction ...

A copper penny appears to turn to silver after heating in an evaporating dish with a mixture. The penny then appears to turn to gold when heated in a flame. Heat causes a fusion of zinc and copper to ...

The rate of a chemical reaction is a measure of how fast the reactants are being used up and how fast the products are being made. The rate can be determined by measuring: changes in the concentration ...