February 19, 2017

Homework Help: Chemistry

Posted by Nikki on Wednesday, December 19, 2012 at 10:46pm.

1)The following balanced chemical equation represents the reaction of calcium carbonate CaCO3 (s), with hydrochloric acid :
CaCo3(s) + 2HCl (aq) -> CaCl2(aq) + CO2(g) + H2O(l)
If 155 g of calcium carbonate reacts with 245 g of hydrochloric acid, what mass of calcium chloride, CaCl2(s), is produced?

2). The reaction between solid white phosphorus, P4(s), and oxygen gas produces solid tetraphosphorus decoxide that is formed when 25.0g of solid white phosphorus and 50.0 g of oxygen are combined.

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