Balancing Equations
9 months ago
mskizior
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• Question 1
120 seconds
Q.

PCl5 + ___ H2O → ___ HCl + H3PO4

4, 5

1, 6

3, 8

2,2

• Question 2
120 seconds
Q.

__ Al + __ FeO → Al2O2 + __ Fe

1, 1, 2

2,1,2

2, 2, 2

2,4,2

• Question 3
120 seconds
Q.  Mg  +  ___ HCl  →   MgCl2  +   H2
1
2
3
4
• Question 4
30 seconds
Q. Which side of a chemical equation is the reactant side?
Left (before the yields sign)
Right (after the yields sign)
• Question 5
30 seconds
Q. Which side of a chemical equation os the product side?
Left (before the yields sign)
Right (after the yields sign)
• Question 6
120 seconds
Q. Which problem is balanced?
PbO2 + 2H2
SO2 + H20 --> H2SO4
2Na + 2H2O --> 2NaOH + H2
• Question 7
180 seconds
Q. Balance this equation.
_SnO+_H2-->_Sn +_H2O
1,1,2,1
1,2,1,1
1,2,1,2
1,2,2,1
• Question 8
180 seconds
Q. Balance this equation.
_CF+ _Br-- _CBr+ _F2
2,1,2,1
1,2,2,1
1,2,1,2
2,2,2,2
• Question 9
30 seconds
Q. What is the little number after an element in a chemical equation called.
Example: H2
Coefficient
Subscript
Atom
Equation
• Question 10
30 seconds
Q. What does the Law of Conservation of Mass state?
Matter cannot be gained or lost in a chemical reaction.
Matter can only be lost in a chemical reaction.
Matter can only be gained in a chemical reaction.
Matter can be gained and lost in a chemical reaction.
• Question 11
120 seconds
Q. Is the equation balanced?: 2H2O + O2 --> 4MgO + 3Fe
Yes
No
• Question 12
180 seconds
Q. Balance this equation
_Al +_HCl --> _H+_AlCl3
2, 6, 3, 2
4, 12, 3, 4
2, 1, 4, 5
• Question 13
180 seconds
Q. Balance this equation.
_CH4 + _O--> _CO+ _H2O
1,2,1,1
2,1,2,1
1,2,1,2
0,2,0,2
• Question 14
180 seconds
Q. Balance this equation.
_CF+ _Br-- _CBr+ _F2
2,1,2,1
1,2,2,1
1,2,1,2
2,2,2,2
• Question 15
45 seconds
Q. Is this equation balanced?
yes
no
Not enough information
• Question 16
60 seconds
Q. How many atoms of aluminum are on each side of the following equation: 4Al + 3O--> 2AlO3
2
6
1
4
• Question 17
60 seconds
Q. When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced
charge
subscript
random number
coefficient
• Question 18
30 seconds
Q. How many atoms of carbon (C) are in C6H12O6?
3
6
12
24
• Question 19
60 seconds
Q.

The two sides of a chemical equation are called?

Reactants (left) and Products (right)

Ingredients (left) and Product (right)

Cations and Anions

Reactants (left) and Results (right)

• Question 20
60 seconds
Q. How many atoms are there TOTAL in:
H2SO4