Water is considered a pure chemical substance. Its mass and properties are similar to many of the other constituent elements.
a compound
water!
a substance known as water or a silicon water base. any kind of salt.
Water
A base substance forms hydroxide ions (OH-) in water. This occurs when the base substance donates OH- ions to the water molecules, increasing the concentration of hydroxide ions in the solution.
Distilled water should be a pure substance, not a mixture. The distillation process basically removes water from its impurities.
A compound.. like Water = H2O
If a substance can be dissolved in water, it is said to be hydrophilic or water-soluble. This means that the substance has an affinity for water and can form a homogeneous solution when mixed with it.
A substance that consists of only one kind of molecule is called a pure substance. Examples include elements like oxygen gas (O2) and compounds like water (H2O). These substances have uniform properties throughout.
a mixture is not a substance
blank is a kind if blank that refers to a substance's ability to burn
A pure substance is a substance that has only that substance in it. One kind of molecule or atom. A homogenous mixture can have different molecules and/or atoms in it, but they have to be in the same physical state. Water mixed with honey would be a homogenous mixture, because they are both liquids. Water mixed with sand would be heterogeneous.