1.How many moles of CO2 would the combustion of 1 mole of H2 produce? (Right or wrong) 2.How many moles of CO2 would the combustion of 1 mole of C8H18 produce? (Right or wrong)

Word equation for k(s) +h2o(l) yield koh (aq) + h2

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.