WorksheetsSection 9 Review
Total questions: 42
Worksheet time: 3620secs
Name
Class
Date
1.
How many double bonds in the compound?
a)
1
b)
6
c)
12
d)
5
2.
Which element is present in all organic compounds
a)
Nitrogen
b)
Oxygen
c)
Carbon
d)
Sulfur
3.
The molecular formula for Heptane is
a)
C4H10
b)
C8H18
c)
C5H12
d)
C7H16
4.
name the group that has a single bond
a)
alkenes
b)
alcohols
c)
alkanes
d)
ethers
5.
the name of this compaund C4H10
a)
METHANE
b)
HEXENE
c)
BUTANOIC ACID
d)
BUTANE
6.
which compound is made up of carbons and hydrogen
a)
hydrocarbons
b)
aldehytes
c)
condensed structure
d)
alcohols
7.
which reaction that releases oxidising agents, heat and light
a)
substitution
b)
combustion
c)
addition
8.
Give the name of this compound...
C3H8
C3H8
a)
Propene
b)
Butyne
c)
Butene
d)
Propane
9.
What is the chemical formula of propane?
a)
C3H8
b)
C3H6
c)
C2H6
d)
C4H10
10.
Between what two elements is the double bond?
a)
Hydrogen and Carbon
b)
Carbon and Carbon
11.
How many carbon atoms are in butane
a)
1
b)
2
c)
3
d)
4
12.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
13.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
14.
If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?
a)
20
b)
22
c)
40
d)
42
15.
The "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.
a)
single
b)
double
c)
triple
d)
quadruple
16.
Name this alkane
a)
Methane
b)
Ethane
c)
Propane
d)
Butane
17.
What is the correct general formula of the alkanes?
a)
CnH2n + 2
b)
C2nH2n + 2
c)
CnH2n
d)
C2nHn + 2
18.
Give the name of this compound...
C3H8
C3H8
a)
Propene
b)
Butyne
c)
Butene
d)
Propane
19.
State the molecular formula for alkynes
a)
CnH2n
b)
C2nH2n+2
c)
CnH2n-2
d)
C2nH2n-2
20.
State the molecular formula for alkenes
a)
C2nH2n
b)
CnH2n
c)
CnH2n+2
d)
CnH2n+1
21.
8.7: Combustion is when a __________ reacts with oxygen
a)
petrol
b)
fuel
c)
fire triangle
d)
carbon dioxide
22.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
23.
A compound that contains only carbon and hydrogen and that produces carbon dioxide and water when burned is called a(n)
a)
binary compound
b)
carbonate
c)
ionic compound
d)
hydrocarbon
24.
The word equation for combustion is:
fuel + oxygen -->
water + ________ __________
fuel + oxygen -->
water + ________ __________
a)
Carbon dioxide
b)
Limewater
25.
Products that are formed in complete combustion reactions.
a)
CO and H2O
b)
CO2 and H2O
c)
H2 and H2O
d)
CO and H2
26.
Read the following chemical formula: C6H12O6. How many hydrogen atoms are in the formula?
a)
12
b)
6
c)
4
d)
1
27.
The substances on the right side of the yields arrow that are formed in a chemical reaction are called _____.
a)
reactants
b)
products
c)
reactors
d)
ingredients
28.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
29.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
30.
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
a)
2
b)
6
c)
1
d)
4
31.
What coefficient should be used in the red blank to make the following equation balanced?
N2+O2--> _NO
N2+O2--> _NO
a)
1
b)
2
c)
3
d)
4
32.
Which coefficients balance this equation:
_Na + _Cl2 ---> _NaCl
_Na + _Cl2 ---> _NaCl
a)
2,1,1
b)
2,1,2
c)
2,2,1
d)
1,2,2
33.
Balance this equation.
_CH4 + _O2 --> _CO2 + _H2O
_CH4 + _O2 --> _CO2 + _H2O
a)
1,2,1,1
b)
2,1,2,1
c)
1,2,1,2
d)
0,2,0,2
34.
True or False: When balancing chemical equations the subscripts can change.
a)
true
b)
false
35.
In a chemical equation, you will ________________ have the same number of atoms on the reactant and product side.
a)
always
b)
never
c)
sometimes
36.
Which of the following are PRODUCTS?
H2O + CO2 → HCO + HO
H2O + CO2 → HCO + HO
a)
H2O and CO2
b)
HCO and HO
c)
H2O ONLY
d)
HCO ONLY
37.
Which of the following has the most number of O atoms?
a)
2Mg3(PO4)2
b)
4AlPO4
c)
3Al(NO3)3
d)
15KOH
38.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
39.
When balancing equations a ____ can be placed to the left of a formula of a substance to make the equations balanced
a)
charge
b)
subscript
c)
random number
d)
coefficient
40.
Which of the following models best demonstrates a balanced chemical equation?
a)
F
b)
G
c)
H
d)
J
41.
The left side of the equation below is called
a)
Products
b)
Reactants
42.
The right side of the equation below is called the
a)
products
b)
reactants
100 %
