what is an element ?
why is soil a mixture and not a compound ?
give an example of an element, compound, and a mixture ?
why is soil a mixture and not a compound ?
give an example of an element, compound, and a mixture ?
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what is an element?
In chemistry, an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.
why is soil a mixture and not a compound ?
Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture. Water is a substance. More specifically, because water is composed of hydrogen and oxygen, it is a compound. Oxygen, a substance, is an element.
give an example of an element, compound, and a mixture ?
Common examples include carbon, sulfur, oxygen, iron, copper, aluminium. Elements are represented by symbols. Compounds are substances made from atoms of different elements joined by chemical bonds. ... A mixture is made by simply mixing together elements and compounds.
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