Pure substance
The opposite of a pure substance is a mixture.
Chalk is a type of limestone composed primarily of calcium carbonate. In its pure form, chalk is considered a pure substance because it has a uniform and definite chemical composition. However, commercially available chalk may contain impurities or additives, making it a mixture.
its not a mixture because i had a test on it and it said it was a pure substance.
Just like granite, marble is a mixture. However, unlike granite, marble is typically more than 90% calcium carbonate, so it might count as a pure substance. Marble is a type of limestone, so is a mixture.
Neither. Oxygen is an element, which is a pure substance and not a mixture.
Limestone is not a pure substance. It is a sedimentary rock composed of various minerals such as calcite, aragonite, and dolomite. These minerals can vary in composition and impurities, making limestone a heterogeneous mixture rather than a pure substance.
mixture
pure substance?
No, it is a mixture; rarely a drug is a pure substance.
No a mixture is by definition not a pure substance.
pure substance
It is a mixture of substances
pure substance, propanone
rice pudding a pure substance or a mixture and is it a homogenous or heterogenous
pure substance
pure substance
Pure Substance