Mix
This is the branch of chemistry that deals with mass relationships in compounds and reactions.
What is Stoichiometry?
This is the coefficient of hydrogen gas in the balanced form of the following reaction: H2 + O2 --> H2O
What is 2?
This is the amount of magnesium chloride produced (in grams) if 20.0 g of magnesium react with excess hydrochloric acid Mg + HCl -------> MgCl2 + H2
What is 78.3 grams?
This is the ingredient that is the limiting reactant if you have 5 cups of flour, 9 eggs and 3 tbs of oil? Given: 2 cups flour + 3 eggs + 1 tbs oil → 4 waffles
What is flour?
The percent yield tells you a relationship between the _________ yield and actual yield of a certain product.
What is the theoretical?
In a chemical reaction, these numbers can be used to determine the mole ratio of any reactants and/or products.
What are coefficients?
This is the coefficient in front of nitrogen gas in the correctly balanced form of the equation:
(NH4)NO2 --> N2 + H2O
What is 1?
This is the amount of lithium nitride in grams that are produced if 5.50g of Lithium reacts with an excess of nitrogen gas. The reaction: 6Li + N2 --> 2Li3N
What is 9.16 grams?
In a chemical reaction, reactants that are not use up when the reaction is finished are called
What is excess reactants?
This is the actual amount of grams produced if the theoretical yield of a reaction is 42.0 grams of product and the percent yield is 75%.
What is 32 g?
These are the units of molar mass.
What is g/mol?
This is the amount of moles of water that are made from the complete reaction of 2.2 moles of oxygen gas with hydrogen gas Given the reaction:
2H2 + O2 → 2H2O
What is 4.4 moles?
This is the amount of calcium carbonate in grams produced when a chemist reacts 5.75L of CaO with an excess of CO2. The reaction: CaO + CO2 ---> CaCO3
What is 25.7 grams?
What type of reaction is Al + HCl → AlCl3 + H2?
What is single replacement?
If the actual yield of a compound is 0.198 g and the theoretical yield is 0.217 g, find the percent yield.
What is 91.2%?
In the reaction represented by the equation 2Al2O3 --> 4Al + 3O2, this is the mole ratio of Aluminum to Aluminum Oxide.
What is 4:2?
This is the amount of moles of H2 that can be made from the complete reaction of 3.0 moles of Al Given:
2 Al + 6 HCl → 2 AlCl3 + 3 H2
What is 4.5 moles?
This is the amount (in grams) of zinc chloride produced from the reaction of 202.7 grams of lithium chloride and an excess of zinc. 2LiCl + Zn ---> ZnCl2 + 2Li
What is 329 g?
In a single replacement reaction, would Mg be able to replace Li? Explain.
What is no, because Mg is not higher than Mg on the Activity Series?
Double Jeopardy
What is the classification of these two reactions: C7H6O2 + O2 → CO2 + H2O
Fe2(SO4)3 + KOH → K2SO4 + Fe(OH)
What is combustion and double replacement?
Double Jeopardy!!!
This is the molar mass of Copper (II) sulfate.
What is a 160 g/mol?
This is how many moles of LiOH are required to react 20 moles of CO2 in the following reaction: CO2 + 2LiOH --> Li2CO3 + H2O
What is 40 moles?
This is the amount (in grams) of aluminum oxide produced from the reaction of 0.353 grams solid aluminum with an excess of oxygen gas. 4Al + 3O2 ---> 2Al2O3
What is 0.663 grams?
What are the coefficents used to balance this chemical equation? Al + HCl → AlCl3 + H2
What is 2, 6, 2, 3?
A reaction with a calculated yield of 9.23 g produced 7.89 g of product. What is the percent yield of this reaction?
What is 85.5%?