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The purest possible sand contains only silicon and oxygen.

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15y ago

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What metals are elements?

All pure metals are chemical elements; alloys are not elements.


How do compounds differ from elments?

Compounds is a pure chemical substance made of two different elements. Elements is pure chemical substance containing only one atom.


Are elements a pure mixture?

Chemical elements are not mixtures (I do not think to the isotopic composition).


How do you know it is a chemical?

All substances which are not pure elements are chemicals.


What does a chemical formula tell you about a pure substance?

It tells you the elements and the proportions of those elements that are present to make the pure substance.


Hydrogen and chlorine are pure substances or chemical elements?

Hydrogen and chlorine are chemical elements. They are pure substances because they are made up of only one type of atom. Hydrogen is the simplest element with atomic number 1, while chlorine is a halogen with atomic number 17.


Is pure sand a compound?

the chemical formula for sand is SiO2, so it is a compound, made from Silicon and Oxygen


What is purified sand?

Sand that has been run through a chemical processor of some kind so it is really pure and in its softest state.


Why are elements called pure?

because the elements are pure so I can says to element 'pure'


Are compounds of the element?

The elements of a compound are the chemical bonds that are present in a specific ratio in a compound. Elements are pure chemical substances that are made of the same atom.


Hydrogen and chlorine are pure substances of what?

Hydrogen and chlorine are chemical elements, not compounds


True or false a pure compound may be broken down into two or more different kinds of pure elements?

True. A pure compound can be broken down into two or more different kinds of pure elements through chemical reactions. These elements can then exist independently and have their own unique properties.