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Which of these is a pure substance?

A. cake mix
B. ocean water
C. 10 carat gold
D. solid gold

User PCA
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2 Answers

2 votes
its d solid gold..\\\
User Alex York
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Solid gold, as it is one pure element.
Cake mix is several different ingredients, ocean water contains water, salt, minerals, etc, and 10 carat gold is only partially gold mixed with other metals.
User Loganathan
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