group 2 exam qs Flashcards
1
Q
Explain, in terms of oxidation states, why magnesium is the reducing agent.
A
Mg changes oxidation state from 0 to +2 so electrons are lost
2
Q
State the role of water in the reaction with calcium
A
Oxidising agent
3
Q
Write an equation for the reaction of magnesium hydroxide with hydrochloric acid.
A
Mg(OH)2 + 2HCl - MgCl2 + 2H2O