How many moles of hexane must burn to form 18.4 mol of carbon dioxide

What overall charge must all compounds have

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

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