A Magnesium ribbon was cleaned with steel wool and used in the following set up. Wet sand was heated before Magnesium ribbon.
![ChemF2midt1q17](https://www.easyelimu.com/images/form_2_past_papers/mid_term_2021/chemf2mid/ChemF2midt1q17.PNG)
- Explain the following:
- Sand was heated first before heating Magnesium ribbon
- Magnesium ribbon was cleaned with steel wool
- Name gas R
- Write an equation for the reaction taking place in the combustion tube
- Name the method used to collect gas R