click below
click below
Normal Size Small Size show me how
CHE 1000
Exan 2
| Question | Answer |
|---|---|
| A___ is used to describe a chemical change. | Chemical equation(reaction) |
| In a chemical equation the ___ are written on the left. | Reactants |
| In a chemical equation the ___ are written on the right. | Products |
| In the law of conservation of mass, in a chemical change _____ is neither created or destroyed. | Mass |
| This is a substance that speeds up a chemical reaction without itself being consumed. | Catalyst |
| The following compound; HO2(aq), is an example of what? | Acid |
| The following compound; Mg(HO)2 (aq), is an example of what? | Base |
| T/F In the guideline for balancing chemical equations; once you have written the correct formula (Fe+HCl(aq)→FeCl2(aq)+H2) you should not change it during the subsequent balancing operations? | True |