Grade 7 3rd Quarter Test Review Question Preview (ID: 36662)
Chemistry.
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Two or more substances not chemically combined is called a
a) element
b) mixture
c) atom
d) matter
The _________ shows the elements in a compund.
a) compound
b) symbol
c) chemical formula
d) chemical property
Anythng that has mass and takes up space
a) element
b) matter
c) chemical
d) substance
The basic particle from which all elements are made
a) matter
b) mass
c) atom
d) substance
A pure substance made of two or more elements that are combined chemically is called
a) element
b) mixture
c) atom
d) compound
An_____ is a substance that cannot be broken down into any other substance.
a) compound
b) element
c) atom
d) mixture
A ________ is a group of two or more atoms held together by chemical bonds.
a) mixture
b) compound
c) molecule
d) elelment
The force of attraction between two atoms is called a ______.
a) molecule
b) mixture
c) chemical bond
d) physical bond
A molecule is the smallest part of
a) an element
b) a compound
c) a substance
d) a mixture
Compounds are formed as a result of
a) physical combination
b) chemical combination
c) distillation
d)
The simplest type of substance is a
a) compound
b) atom
c) molecule
d) element
Substances in a ________ keep their own properties.
a) compound
b) molecule
c) mixture
d) atom
Each element is represented by a ____ consisting of one or more letters.
a) symbol
b) atomic number
c) atomic mass
d)
________ is anything that has mass and takes up space.
a) chemistry
b) matter
c) substance
d) atom
______ is the study of matter and how matter changes.
a) chemistry
b) biology
c) geology
d)
A _____ is a single kind of matter that is pure.
a) molecule
b) atom
c) substance
d)
A _______ is a characteristic of a substance that can be observed without changing in into another substance.
a) physical property
b) chemical property
c)
d)
A _____________ is a characteristic of a substance that describes its ability to change into different substances.
a) physical property
b) element
c) chemical property
d)
The physical property that makes metal pots good for cooking is
a) flexibility
b) flammability
c) heat conductivity
d)
The ability of iron to rust is a ______ property.
a) chemical
b) physical
c) unknown
d)
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