Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
8th Chemical Reactions
Test Description: Review for Chemical Reactions Chapter 5
Instructions: Answer all questions to get your test result.
1) A change in matter that produces new substances is called a
A
chemical reaction
B
mixture
C
physical change
D
solution
2) which of the following cannot be used to put out a small fire?
A
Water
B
Oxygen
C
Carbon Dioxide
D
Baking Soda
3) A number that is written smaller and lower than the letter symbols in a chemical formula and that shows how many atoms of a substance are in a molecule is called
A
coefficient
B
subscript
C
element
D
superscript
4) The rate of reaction can be decreased by increasing
A
amount of inhibitor
B
concentration of reactants
C
temperature
D
surface area
5) In a balanced equation, both sides should have the same
A
number of molecules
B
number of subscripts
C
number of atoms
D
number of coefficients
6) If a reaction absorbs energy, it is called
A
an exothermic reaction
B
a replacement reaction
C
a decomposition reaction
D
an endothermic reaction
7) When two or more substances combine to form a complex compound this process is called
A
replacement reaction
B
physical change
C
a decomposition reaction
D
synthesis reaction
8) The number in front of a chemical formula that tells how many molecules or atoms of each reactant take part in a reaction is called
A
symbol
B
concentration
C
coefficient
D
subscript
9) Which of the following is not evidence of a chemical reaction
A
production of gas
B
formation of ice crystals
C
production of a new substance
D
change in color
10) In a chemical reaction, the sum of the masses of the products is equal to the sum of the
A
atoms in the equation
B
masses of the reactants
C
coefficients
D
subscripts
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?