Balancing Equations
Na + MgF2 NaF + Mg
2,1,2,1
2KClO3 --> 2KCl + 3O2
How many moles of oxygen are produced when 5 moles of KClO3 react?
7.5 moles of oxygen
Li3N + 3H2O --> NH3 + 3LiOH
How many grams of LiOH are produced when 0.5g of Li3N react?
1.03g LiOH
4NH3 + 3O2 --> 2N2 + 6H2O
When 5 moles of NH3 reacts with 7 moles of O2
how many moles of each product are made?
what is the limiting reactant?
How many moles of the excess reactant are leftover?
2.5 moles N2
7.5 moles H2O
NH3 is the LR
3.25 moles O2 left over
Cl2 + KI --> KCl + I2
1,2,2,1
Zn + 2HCl --> ZnCl2 +H2
How many moles of hydrogen are produced from the reaction of 2.56 moles of zinc?
2.56 moles of hydrogen
2NaI + Cl2 --> NaCl + I2
How many grams of sodium chloride are produced when 1.7g of NaI react?
0.33 g NaCl
SiO2 + 4HF --> SiF4 + 2H2O
4.5 moles of SiO2 react with 6 moles of HF
How many moles of each product are made?
What is the limiting reactant?
How many moles of the excess reactant are leftover?
1.5 mole SiF4
3 mole H2O
HF is the LR
3 moles SiO2 leftover
P + O2--> P4O10
4,5,1
C3H8 + 5O2 --> 3CO2 + 4H2O
How many moles of oxygen are necessary to react completely with 5.83 moles of C3H8?
29.15 moles of oxygen
2CO + O2 --> 2CO2
What mass of CO must react in order to produced 5.34g of CO2?
3.40g CO
Mg + 2HCl --> MgCl2 + H2
0.205 moles Mg react with 0.16 moles HCl
how many moles of each product are made?
what is the limiting reactant?
How many moles of the excess reactant are leftover?
0.08 moles MgCl2
0.08 moles H2
HCl is the LR
0.125 moles Mg leftover
Al2O3 --> Al + O2
2Al(OH)3 + 3H2SO4 --> Al2(SO4)3 + 6H2O
How many moles of water are produced when 0.78 moles of Al(OH)3 react?
2.34 moles of water
How many grams of NaOH will react with 2.95 grams of Ni(NO3)2?
1.29g NaOH
N2H4 + 2H2O2 --> N2 + 4H2O
0.75 moles of N2H4 reacts with 1 mole of H2O2
how many moles of each product are made?
what is the limiting reactant?
How many moles of the excess reactant are leftover?
0.5 moles N2
2 moles of H2O
H2O2 is the LR
0.25 moles N2H4 leftover
C2H6 + O2 --> CO2 +H2O
2,7,4,6
2HCl + Ca → H2 + CaCl2
How many moles of H2 are produced when 0.45 moles of HCl react?
0.225 moles H2
KClO3 --> 2KCl + 3O2
How many grams of oxygen gas are produced when 57g of KClO3 react?
44.65 g O2
2CuCl2 + 4KI --> 2CuI + 4KCl + I2
0.56 moles CuCl2 reacts with 0.64 moles KI
how many moles of each product are made?
what is the limiting reactant?
How many moles of the excess reactant are leftover?
0.32 moles CuI
0.64 moles KCl
0.16 moles I2
KI is the LR
0.24 moles CuCl2 leftover