Separate samples of calcium and magnesium are each reacted with cold water. Separate samples of calcium and magnesium are also each heated in oxygen. Which row gives the correct observations for these reactions?
- Acalcium with cold water: rapid bubbling; magnesium with cold water: slow bubbling; calcium with oxygen: red flame; magnesium with oxygen: white flame
- Bcalcium with cold water: rapid bubbling; magnesium with cold water: slow bubbling; calcium with oxygen: white flame; magnesium with oxygen: red flame
- Ccalcium with cold water: slow bubbling; magnesium with cold water: rapid bubbling; calcium with oxygen: red flame; magnesium with oxygen: white flame
- Dcalcium with cold water: slow bubbling; magnesium with cold water: rapid bubbling; calcium with oxygen: white flame; magnesium with oxygen: red flame