A sample of trifluoroacetic acid, C2HF302, contains 38.9 g of fluorine. Calculate the mass of the trifluoroacetic acid sample. mass :
g
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What element breaks down into yttrium-90?

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

Cucl2 + 2nano3 cu(no3)2 + 2nacl what is the percent yield of nacl if 31.0 g of cucl2 reacts with excess nano3 to produce 21.2 g of nacl? 49.7% 58.4% 63.6% 78.7%