Chemical changes
6 important questions on Chemical changes
Metals plus water or dilute acid
Where are hydrogen and carbon found on the reactivity series?
hydrogen is after lead
What are oxidation and reduction in terms of electrons
Reduction- gain
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
What is a metal ore?
How are metals extracted by carbon?
Reduction of metal by a) carbon b) hydrogen
b) metal oxide + hydrogen --> metal + water vapour
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding