Question

According to the definition of pure substance which of the following is a pure substance? 

Ice 

Mercury 

Iron 

All of these 

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Answer 1

Answer:

all of these

Explanation:

scince, all substances in options are made up of single type of element.... hece all are pure substances

Answer 2

Answer:

hey...think so all of these

Explanation:

the substances which contains only one kind of matter are called pure substances so therefore, ice ,mercury and iron all are made up of only one matter