End Of Year Science Review - Modules 4-5 Question Preview (ID: 51028)


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What is a pure chemical substance with two or more elements combined?
a) atom
b) crystal
c) compound
d) element

A reaction that occurs when two or more chemical substances interact with each other and change into different chemical substances.
a) polymer
b) physical reaction
c) crystal
d) chemical reaction

Which is NOT an example of a physical reaction?
a) melting
b) boiling
c) burning
d) dissolving

Which of the following is NOT an acid?
a) lemon juice
b) vinegar
c) soap
d) stomach juices

Which of the following is a vanilla milkshake?
a) heterogeneous mixture
b) compound
c) homogeneous mixture
d) element

Which of the following is sand?
a) heterogeneous mixture
b) compound
c) homogeneous mixture
d) element

Which of the following is a sugar cube?
a) heterogeneous mixture
b) compound
c) homogeneous mixture
d) element

Which of the following is gold?
a) heterogeneous mixture
b) compound
c) homogeneous mixture
d) element

Which is NOT a way to separate components of a mixture?
a) evaporation
b) filtration
c) burning
d) chromatography

What do you call a mixture of different metals?
a) compound
b) solution
c) alloy
d) polymer

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