Based on the clue 'calcium permanganate once powered the v 2 type of ...', what is the answer?

Based on the clue 'calcium bicarbonate from this the most abundant so...', what is the answer? Based on the clue 'calcium carbonate conglomeration in englands count...', what is the answer? What is referred to by 'calcium iron'? Based on the clue 'calcium oxide not a citrus fruit gives us this ter...', what is the answer? Based on the clue 'calculating device the chinese call the suan pan', what is the answer? Based on the clue 'calculus is featured in this gilbert sullivan ope...', what is the answer? Based on the clue 'calcutta had indias first of these the transpor...', what is the answer? What is referred to by 'calcutta thimphu phnom penh'?