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It is not pure and it is not homogeneous.
Table salt is a pure substance. A pure substance is a substance has one type of molecule and one type of atom. Other pure substance are copper and liquid water.
Yes. Magnesium oxide is a compound which is a type of pure substance.
a pure substance
Yes. Calcium oxide is a compound which is a type of pure substance.
Yes, sugar (sucrose, C12H22O11) is a compound, with only one type of molecule, which is a pure substance.
Refined substance can be a pure substance depending on the type of sugar used. If the refined sugar is white, then it is a pure substance. If it the refined sugar is brown, then it is not a pure substance.
Yes, an element is a pure substance. An element is composed of only one type of atom. There are no other substances in it. So an element is a pure substance.
A pure substance or an element.
Pure Substance.Hg stands for mercury. A pure substance is made of only one type of atom or molecule. Since mercury is an element, it is a pure substance.
Pure substance
water is a pure substance.