a.
To determine:
If cream, sugar, and flavorings are mixed and frozen to make ice cream is a physical change or a
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
b.
To determine:
If milk spoils and becomes sour is a physical change or a chemical reaction.
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
c.
To determine:
If a puddle of spilled nail polish remover disappears is a physical change or a chemical reaction.
Concept introduction:
Physical change is defined as that change in which the chemical composition of the substance does not change. In physical change one form of a substance is changed to another form, no new product is formed.
Examples of physical change are condensation, melting and freezing.
A chemical change is defined as that change in which the chemical composition of the substance changes. In a chemical reaction, the formation of a new product takes place.
Examples of a chemical reaction are rusting of iron and formation of a precipitate.
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MASTERING CHEM NEW DESIGN W/MMI - ACCES
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