Chemical
Equations
Equations
Reaction
Type
Type
Molar
Mass
Mass
Stoichiometry
Gas
Laws
Laws
100
On the left side of an equation, one can find the _________.
On the left side of an equation, one can find the reactants.
100
Which reaction involves multiple simple reactants combining to produce 1 single complex product?
Synthesis or Direct Combination
100
What is the definition of molar mass?
The mass in grams of one mole of a substance
100
The balanced chemical equation for the reaction of hydrogen and oxygen is shown below.
2H2 + O2 --> 2H2O
To produce 5 moles of H2O, how many moles of H2 will have to react?
5 moles of H2
100
Charles' Law states that if there is a constant number of gas particles, then increasing the volume of the container will cause the temperature to ________.
Charles' Law states that if there is a constant number of gas particles, then increasing the volume of the container will cause the temperature to decrease.
200
What is the full-sized number to the left of the H2 & H2O called?
It is called a coefficient
200
A double replacement reaction can be best described as a reaction in which ______ are exchanged between 2 compounds.
A double replacement reaction can be best described as a reaction in which Ions are exchanged between 2 compounds.
200
How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?
The same number of molecules.
200
Sn + 2HF --> SnF2 + H2
The molar mass of HF is 20.0 g/mol.
How many moles of Sn are required to react completely with 40.0 g of HF?
1 mole of Sn
200
A balloon that had an initial volume of 3.50 L at 150 K is warmed up to a new temp of 300 K.
If the pressure remains constant at 1 atm, what is the new volume of the balloon?
Hint: V1/T1 = V2/T2
The new volume is 6.00 L
300
What is the missing coefficient that will balance the equation?
2Li + F2 --> __LiF
The coefficient is 2.
2Li + F2 --> 2LiF
300
Na > Mg > Fe > Co > H > Sb > Bi > Cu > Ag
Using the partial activity series provided above, will the reactants seen below form products?
Fe + Cu(NO3)2
Yes, they will form Cu & Fe(NO3)2
300
Which is the molar mass of H2O?
Approximately 18 g/mol
300
2H2O --> 2H2 + O2
The molar mass of H2O is 18.0 g/mol.
The molar mass of O2 is 32.0 g/mol.
What mass of H2O (in grams) must react to produce 64.0 g of O2?
72.0 g of H2O
300
What is the temperature of 0.50 mol of a gas stored in a 10 L tank at a pressure of 2 atm?
PV= nRT
R = 0.0821 atm*L/(mol*K)
The temperature is 487 K
or 214oC
or 418oF