Multiple ChoiceWhich of the following tools is essential for performing stoichiometric calculations in chemistry?39views
Multiple ChoicePropane has the chemical formula C_3H_8. How many grams of carbon are present in 88 grams of propane?60views
Multiple ChoiceIf 4.00 g of NaCl react with 10.00 g of AgNO3, what is the maximum mass of AgCl that can be formed?44views
Multiple ChoiceWhen 2.3 g of Na(s) reacts with excess water, what volume of hydrogen gas (H_2) at STP is produced?55views
Multiple ChoiceIn one formula unit of silver sulfide (Ag2S), how many silver atoms are present?62views
Multiple ChoiceWhich of the following allows us to convert from moles of one substance to moles of another substance in a chemical reaction?38views
Multiple ChoiceWhen 20.0 g of C2H6 and 60.0 g of O2 react completely to form CO2 and H2O, what is the limiting reactant?43views
Multiple ChoiceIn the balanced chemical equation for the reaction between acetic acid and sodium carbonate, if the coefficient for sodium acetate (NaC2H3O2) is 2, what is the total number of sodium atoms present in the products side of the equation?52views
Multiple ChoiceGiven the reaction 2 NO(g) → N2(g) + O2(g), how many grams of NO are required to produce 145 g of N2?34views
Multiple ChoiceGiven 10.0 g of PCl3 and 12.0 g of Cl2, what mass of PCl5 can be produced according to the reaction PCl3 + Cl2 → PCl5, assuming the reaction goes to completion?38views
Multiple ChoiceWhat is the mass of NaCl required to prepare 140 grams of a 12% (by mass) NaCl solution in water?44views
Multiple ChoiceHow many moles of oxygen gas (O_2) are required to react completely with hydrogen gas (H_2) to produce 12 moles of water (H_2O)?36views