The alkalinity and the hardness of a water sample are 250 mg/L and 350 mg/L as CaCO3, respectively. The water has
1
350 mg/L carbonate hardness and zero non-carbonate hardness
2
250 mg/L carbonate hardness and zero non-carbonate hardness
3
250 mg/L carbonate hardness and 350 mg/L non-carbonate hardness
4
250 mg/L carbonate hardness and 100 mg/L non-carbonate hardness