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
mixture
B
solution
C
chemical reaction
D
physical change
2) which of the following cannot be used to put out a small fire?
A
Baking Soda
B
Water
C
Carbon Dioxide
D
Oxygen
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
superscript
B
coefficient
C
subscript
D
element
4) The rate of reaction can be decreased by increasing
A
amount of inhibitor
B
surface area
C
temperature
D
concentration of reactants
5) In a balanced equation, both sides should have the same
A
number of coefficients
B
number of molecules
C
number of atoms
D
number of subscripts
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
synthesis reaction
B
replacement reaction
C
a decomposition reaction
D
physical change
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
coefficient
B
concentration
C
subscript
D
symbol
9) Which of the following is not evidence of a chemical reaction
A
change in color
B
production of gas
C
formation of ice crystals
D
production of a new substance
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
subscripts
C
masses of the reactants
D
coefficients
*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?