Three metal compounds, J, K and L, are heated with a Bunsen burner. The outcomes are shown below. J: a colourless gas is given off that relights a glowing splint. K: a colourless gas is given off that turns limewater milky. L: no reaction occurs. Which row identifies J, K and L?
- AJ magnesium carbonate, K potassium carbonate, L potassium nitrate
- BJ magnesium carbonate, K potassium nitrate, L potassium carbonate
- CJ potassium nitrate, K magnesium carbonate, L potassium carbonate
- DJ potassium nitrate, K potassium carbonate, L magnesium carbonate