determine the limiting reactants for the following reaction. The mass of O2 is 32g and that of Mg 24g, so which between them is a limiting or excess reactant(7-8): 2Mg + O2 --> 2MgO

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two

Why does ammonia, nh3, behave as a base when it reacts with an acid? z