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WorksheetsChemical Reactions
Total questions: 10
Worksheet time: 6mins
In a ___________change, a substance changes into a different substance.
physical
chemical
Which of these is NOT a sign that a chemical change has occurred?
Change of shape
Colour change
A temperature change
Formation of a precipitate (insoluble solid)
The Law of Conservation of Mass states that... (there are two answers)
matter exists in all states and reacts the same
the mass of the products must equal the mass of the reactants
exists in the same state throughout any chemical change
cannot be created or destroyed and that
6MgF2
Which of the following IS a physical change?
Getting a haircut
Rusty metal
Sour milk
A compound
___________________ are substances that are formed in a chemical reaction.
Polymers
Bonds
Reactants
Products
In a chemical reaction, no new atoms are created, and no atoms are destroyed.
True
False
