Colloidal suspensions are heterogeneous; they necessarily contain more than one substance. You could make one out of two pure substances.
Pure substances are made up of a single element, or a single compound. Table salt is a pure substance because it is made up of only the compound NaCl (sodium chloride). Diamond is a pure substance, it is made up of the element carbon. Air is not a pure substance, it is a mixture of several gaseous elements and compounds (nitrogen, oxygen, carbon dioxide..) Distilled water is a pure substance made up of a single compound H2O.
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solution
While studying matter, we were able to break it down to the point where it could not be broken down any further. We were left with Pure substances and mixtures. Here we were able to identify what elements were and what they could make. Scientists define matter as pure substances that cannot be decomposed.
Pure substances that are physically combined make a mixture.
Pure substances are divided into elements and compounds.
pure are you dumb or something
Practically (exceptions exist) all known substances can be obtained in a pure fom.
Salt on its own is a pure substance. It consists entirely of sodium chloride ions. On the other hand, pepper is not a pure substance. It is a mixture of many different substances.
Substances that are not pure.
yes they are pure
Compounds and solutions are pure substances
There are very few pure substances around us. Most substances are mixtures, or compounds.
Yes my friends. All elements are pure substances that cannot be broken down. However, pure substances aren't all elements.
mixture
Yes, compounds are pure substances.