Vocabulary
A conversion factor that relates the amounts in moles of any two substances involved in a chemical reaction.
What is a mole ratio?
CO2 + 2LiOH --> Li2CO3 + H2O
The number of moles of lithium hydroxide are required to react with 20 moles of CO2.
What is 40 mol of CO2?
Mg + 2HCl --> MgCl2 + H2
The number of grams of hydrogen that is produced if we start with 2 moles of hydrochloric acid with excess magnesium.
What is 2 grams of H2?
The mole mass of H2SO4.
What is 98.08g?
___ N2 + ___ H2 --> ____ NH3
Balance the equation shown above.
What is N2 + 3H2 --> 2NH3?
The value of Avogadro's number:
What is 6.022x1023?
6CO2 + 6H2O --> C6H12O6 + 6O2
The number of moles of carbon dioxide that are needed to react with 3.25 moles of water in the reaction described above.
What is 3.25 moles CO2?
Mg + 2HCl --> MgCl2 + H2
The mass in grams of hydrochloric acid (molar mass is 36.5 g/mol) that is needed to react with 2.50 moles of magnesium.
What is 182 grams of HCl?
The number of atoms contained in 2.34 moles of Tellurium (Te).
What is 1.41 x 1024 atoms?
___ H2O2 --> ___ H2O + ___ O2
Balance the equation shown above.
2H2O2 --> 2H2O + O2
The reactant that runs out first in a chemical reaction and it also determines the amount of the other reactants that can combine (and the amount of product that can form) in a chemical reaction.
What is the limiting reactant?
2Mg + O2 --> 2MgO
The number of GRAMS of magnesium oxide that are produced from 1.2 moles of magnesium.
What is 48 grams?
The Molarity of a KCl solution if given 0.25 grams of KCl and 300. mL of the solution.
What is 0.011 M?
The number of grams contained in 0.636 moles of sulfur.
What is 20.4 grams?
___ FeBr3 + ___ H2SO4 --> ___ Fe2(SO4)3 + ___ HBr
Balance the chemical equation shown above.
2FeBr3 + 3H2SO4 --> Fe2(SO4)3 + 6HBr
Label the different parts of the chemical reaction: (Before the arrow, the arrow, and after the arrow)
A + B --> C
What is the Reactants, Yields, and Products?
Should be labeled as follows:
A & B: Reactants
--> : Yields/Makes/Produces
C: Products
2NH4NO3 --> 2N2 + 4H2O + O2
The number of moles of water that are produced from 36.00 grams of ammonium nitrate.
What is 0.8995 moles?
Ammonium decomposes to produce nitrogen and hydrogen gas.
The number of moles of H2 formed by the decomposition of 0.145 moles of ammonia.
What is 0.218 mol of H2?
The number of particles contained in 5.12 grams of carbon.
What is 2.57 x 1023 atoms/particles?
Write the complete balanced equation for the following reaction:
Lithium hydroxide pellets are added to a solution of sulfuric acid, lithium sulfate and water are formed.
What is 2LiOH + H2SO4 --> Li2SO4 + 2H2O?
States that mass is neither created nor destroyed during chemical or physical reactions. (The reason why we balance chemical equations!)
What is the Law of Conservation of Mass?
Hydrogen and oxygen gases react under a specific set of conditions to produce water.
The number of moles of oxygen required to produce 5.0 moles of water in the reaction described above.
What is 2.5 mol O2?
Hydrogen gas with reacts with oxygen gas to form water.
Determine the limiting reactant when 5 moles of H2 react with 7 moles of O2. (HINT: Think of the Visual Stoich Activity/Problems)
What is H2?
The number of grams of sodium hydroxide required to prepare 500.0 mL of 0.100 M solution.
What is 2.00 grams of sodium hydroxide?
Write the correct balanced equation for the reaction shown below.
Phosphorus combines with oxygen gas to produce tetraphosphorus decoxide.
What is 4P + 5O2 --> P4O10?