the chemical formula for sand is SiO2, so it is a compound, made from Silicon and Oxygen
Pure water is a compound. It is composed of two elements, hydrogen and oxygen, chemically bonded together in a fixed ratio (H2O).
Toluene is a pure substance because it is a single compound with a uniform chemical composition throughout.
Pure gold is an element, not a compound. It is composed of only one type of atom, which is gold.
Sand is a mixture because it is composed of different minerals such as quartz, feldspar, and mica. These minerals are physically combined, not chemically bonded, which means they can be separated through physical means like sifting or filtering.
If there are no impurities [no contaminants] in the Copper Nitrate then it is indeed a pure substance. It is a compound and a compound can be pure [Think: Pure Water] However it is a compound made up of the elements Copper, Nitrogen and Oxygen. Chemical formula: Cu(NO3)2
Sand is a mixture; rarely may be an almost pure compound.
Most naturally occurring sand is a mixture, but some especially pure sand is a compound named silicon dioxide. This compound occurs in all other forms of sand.
sand is a mixture because its all mixeed up with stuff!
It's a compound. H2O - Two hydrogen atoms, one oxygen atom Water is a compound as it can be reduced to simpler elements (Oxygen and water).It is a homogenous mixture("the same") as it is uniform throughout. E.g: Salt and sand mixed together would be a heterogenous mixture("different") as you can distinguish between sand and salt. A pure 'mixture' is usually homogenous, especially liquids.
tap water is a pure compound.
A compound is a pure material.
A compound is a pure substance.
Yes, quartz sand is a compound, because quartz is a compound.
it depends on the source of the sand. If it is sterilized sand from a building supply source wouldn't it be pure?
Pure water is a compound of hydrogen and oxygen.
Magnesium oxide (MgO) is a pure compound.
If this compound is refined can be classified as a pure substance.