Chemical Reactions Test Review Question Preview (ID: 46097)


Review For The Chemical Reactions Test In Ms Ward's Class. TEACHERS: click here for quick copy question ID numbers.

What evidence would you see in the reaction that would indicate a chemical change has occurred?
a) odor is produced
b) bubbling
c) color change
d) all listed

What are the big numbers in front of a formula used to balance a chemical reaction called?
a) Coeffective
b) coefficients
c) subscripts
d) superscripts

What indicates compound is dissolved in water?
a) (H2O)
b) (l)
c) (aq)
d) (s)

What are used to make neutral ionic compounds?
a) coeffectives
b) coefficients
c) subscripts
d) superscripts

What indicates a substance is insoluble in water?
a) (l)
b) (s)
c) (g)
d) (aq)

In a formula equation for a chemical reaction, where is a catalyst written?
a) on the products side
b) on the reactants side
c) on both sides of the reaction
d) written above the reaction arrow

A triangle above the reaction arrow represents what?
a) a catalyst or heat was applied
b) change is occuring
c) its a combustion reaction
d) nothing

What are catalysts or heat in a reaction used for?
a) to slow down or stop the reaction
b) to change what is formed in the reaction
c) to speed up the reaction
d) to fix the reaction

What are spectator ions?
a) fans of the reaction
b) ions that, after writing the net ionic equation, are changed from one side of the reaction to the other
c) unneccesary for the reaction to take place
d) ions that, after writing the net ionic equation, are unchanged on both sides of the reaction

Which of the following compounds is insoluble in water?
a) PbCrO4
b) KOH
c) KNO3
d) NH4Cl

Which of the following compounds is insoluble in water?
a) KNO3
b) K2CrO4
c) Ag2CO3
d) K2SO4

Which of the following compounds is insoluble in water?
a) CuSO4
b) NH4OH
c) NaNO3
d) BaSO4

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