WorksheetsChemical Reactions Quiz
Total questions: 12
Worksheet time: 24mins
In an Exothermic Reaction energy is
Absorbed
Released
Created
the same
In a Physical Change, a new substance is created.
True
False
How can you tell if a chemical change has happened?
A new substance forms
The substance changes colors
The substance produces heat
All of the above
Melting Ice is a physical Change.
True
False
What kind of reaction absorbs heat?
Exothermic
Endothermic
Exponential
Endodontic
A reactant is
the end result of a chemical reaction.
the end result of an explosion
the starting material for a chemical reaction
the start of a race
Photosynthesis is a type of
Exothermic reaction
Exposition
Endothermic reaction
Implosion
When you bake a cake a ______________ change occurs.
Yummy
Space
Physical
Chemical
Evidence that a physical change has occurred is
a new substance
the substance blows up
the substance smells differently
the substance changes phases
Elephant Toothpaste is a ______________ change and an __________________ reaction.
Chemical, endothermic
Chemical, exothermic
Physical,endothermic
Physical, exothermic
What happens when you put a flame to sugar
a physical change occurs
a chemical change occurs
no change occurs
an endothermic reaction occurs
In a chemical change, molecule bonds are
not affected
broken apart, and put back together the same way.
broken apart and rearranged into a new substance.
left alone.
