yes
Pure Substance: Only contains one elment or conpound.
no its a cow... poo ok, just pooo
pure substace
it depends on the source of the sand. If it is sterilized sand from a building supply source wouldn't it be pure?
yes.
Sand usually contains abundant silica, but it generally is not pure silica.
the chemical formula for sand is SiO2, so it is a compound, made from Silicon and Oxygen
To get more sand
The purest possible sand contains only silicon and oxygen.
Sand usually contains abundant silica, but it generally is not pure silica.
Sand is a mixture; rarely may be an almost pure compound.
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