Recall that Matter can be categorized as a single or variable composition
Matter is considered a pure substance if it is composed of a single entity
Which of the picture(s) below shows a pure substance?
A. (i) only
B. (i) and (iv) only
C. (i), (iv), (v) and (vi) only
D. (ii), (iii) and (iv) only
E. (iv) only
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