Checkpoint Science: Chemistry I: Materials and Particle Ideas
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Free Checkpoint Science Q & A Practice
1 of 5 free Checkpoint-standard exercises in this section
The diagrams show the particles in five different substances. Each circle represents an atom; different colours represent atoms of different elements.
Box 1
Box 2
Box 3
Box 4
Box 5
Which box shows a
mixture of an element and a compound
?
Select one option.
A
Box 1
B
Box 2
C
Box 3
D
Box 4
E
Box 5
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