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Chemistry — Grade 8 Quiz Questions
A sample of the 10 questions below — instant scoring and an explanation for every answer. No sign-in required to play.
Question 1
A substance made of two or more elements chemically combined in fixed proportions is called a ___.
Amixture
Bsolution
Celement
Dcompound
Question 2
In the periodic table, elements in the same vertical column are called a ___.
Aperiod
Bseries
Cgroup (family)
Dblock
Question 3
The smallest unit of an element that retains its chemical properties is a(n) ___.
Aatom
Bmolecule
Ccompound
Dion
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