In a chemical reaction, atoms are neither created or destroyed ( Not a true or false answer )
What is Law of Conservation of Mass
100
The mass in grams of one mole of a substance
What is molar mass
100
What you use when converting mass to moles
What is molar mass
100
2H2 + O2 --> 2 H2O
The amount of moles of H2 required to produce 5.0 moles of water
What is 5 moles
100
The reactant that controls the amount of product made
What is the limiting reagent
200
The identities of reactants and products and the relative number of each
What does a chemical equation tell us
200
No silly, its not avocado... it's avagadro
What is 6.02 x 10 23
200
4NH3 + 5O2 --> 4NO + 6H2O
The amount of moles formed of NO when 6.7 g NH3 react with excess O2
What is 0.39 mol NO
200
CO2 + 2LiOH --> Li2CO3 + H2O
If 20 moles of CO2 is exaled, the average amount of exhaled by a person each day, how much (in grams )Li2CO3 is produced
What is 148 g
200
the maximum amount of products that can be produced from a given amount of reactants versus the measured amount obtained from the reaction
What is the difference between theoretical and actual yield
300
These numbers will balance the equation below
____ N2 + ____ H2 --> ___ NH3
What are 1, 3, and 2
300
105.99 g Na2CO3
What is the molar mass of sodium carbonate
300
The grams of HCl is produced when 7.52 g of Cl2 is reacted with excess H2. The UNBALANCED equation is H2 + Cl2 --> HCL
What is 7.83 g HCl
300
Pb(SO4)2 + 4LiNO3 --> PB(NO3)4 + 2 Li2SO4
How many grams of lithium nitrate will be needed to make 250.0 g of Li2SO4
What is 313.5 g
300
Zinc and sulfur react to form zinc sulfide
Zn + S8 --> ZnS
If 2.00 moles of Zn are heated with 1.00 moles of S8, what is the limiting reagent?
What is Zinc
400
Glass etching takes place when hydrofluoric acid reacts with the silicon dioxide to form silicon tetrafluoride and water. The balanced chemical equation is
What is SiO2 + 4HF --> SiF4 + H2O
400
mole to mole ratio
What is the conversion factor used to relate two different substances in a chemical reaction
400
___ H2SO4 + ____ NaOH --> ____ Na2SO4 + ____ H2O
If 30.0g H2SO4 reacts with sodium hydroxide, the mass of water produced is
What is 11.0g NaOH
400
4.50 moles of ethane, C6H6, undergoes combustion according to the unbalanced equation C2H6 + O2 --> CO2 + H2O. what is the amount of moles required?
What is 15.8 moles
400
C6H6 + Cl2 --> C6H5Cl + HCl
When 36.8 g C6H6 react and the actual yield is C6H5Cl is 38.8g. What is the percent yield?
What is 73.2%
500
The numbers that fill in the blanks below
___ NH3 + ___NO --> ____N2 + ____H2O
What are 4, 6, 5, 6
500
The branch of chemistry that deals with the relationships of elements in compounds AND the mass relationships between reactants and products in a chemical reaction
What is stoichiometry
500
Copper (II) Chloride reacts with sodium nitrate and sodium chloride
The mass of sodium chloride formed if 20 g of copper (II) nitrate reacts with 20 g of sodium nitrate
What is 13.65 g
500
LiOH + HBr --> LiBr + H2O
If you start with 10.0 g of LiOH, how many grams of LiBr will be produced?
What is 36.25
500
the limiting reagent when 2.5 moles copper and 5.50 moles of silver nitrate are available to react by single replacement