level: Interpreting a chemical formula and chemical reactions
Questions and Answers List
level questions: Interpreting a chemical formula and chemical reactions
| Question | Answer |
|---|---|
| MgS | 1 atom of magnesium 1 atom of Sulphur |
| Na2SO4 | 2 atoms of sodium 1atom of Sulphur 4 atoms of Oxygen |
| What happens if we change the number of atoms in a specific compound | We get a whole new compound |
| How do we separate compounds back into their elements | Chemical reaction |
| Name all the key features of a chemical reaction | 1) compounds are broken up or formed 2)at least one new substance is created 3) no atoms are created or destroyed 4)measurable energy change |