WorksheetsChemical Reaction : Change in Properties
Total questions: 11
Worksheet time: 6mins
Water frozen into ice does not make a new substance.
True
False
Mixing matter together ( like in a mixture ) does not create a new substance.
False
True
One common sign of a chemical reaction is a change in
size
mass
color
If the reactants are a different color than the product
a chemical change has occurred.
a physical change has occurred.
It is neither.
Another sign of a chemical reaction is
a change in volume
a change in mass
emission of an odor or smell.
The production of a ____ is another sign that a chemical reaction has taken place.
a change in shape
change in volume
gas
The appearance of __________ sometimes tell us that a gas has been produced
bubbles
cookie batter
cookies
The holes in cookies tell us that carbon dioxide was __________
used
released.
one of the ingredients.
Soap scum is an example of a
chemical
gas
precipitate
Which of the following is a sign that a chemical reaction has occurred?
Change in color
emission of odor
production of gas
all of the above
What is an insoluble solid that emerges from a chemical reaction within a liquid solution
mixture
substance
suspension
precipitate
