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

Which terms are used to identify pure substances

In the experiment you asked to react hydrochloric acid and with sodium hydroxide. when measuring the volume of the reactants, which instrument would give the greatest precision.

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.