water is a substance, made of oxygen and hydrogen, because mixing ox and hyd would give nothing but explosion, water is an effect of chemical reaction, not only mixing gases
Ice is solid H2O so it is a pure substance, at least ideally.
Water is a compound having a chemical formula of fixed proportions, and as such is a pure substance. Its chemical formula is H2O, in which the two hydrogen atoms are covalently bonded to the oxygen atom.
Well a mixture is like a salad, you can pick out the tomatoes, the lettuce, the olives and what not. If you have sugar plus pure water you definitely can't take out the sugar out of the water, unless you have some super scientifical machine (: . I'm not quite sure what a pure substance is but I would say that it is a pure substance because it can't be a mixture.----------------------------------Sugar water is an example of a solution, which is classified as a homogeneous mixture (vs. mechanical mixture like salad). Water and sugar are both pure substances and when they are combined through physical means (dissolution is a physical process) they make a mixture. Sugar and water can be easily separated through evaporation.Water plus sugar=carbon dioxide
Yes, cordial in water can be considered a solution. A solution is a homogeneous mixture where one substance, the solute (in this case, the cordial), is dissolved in another substance, the solvent (water). As long as the cordial mixes uniformly with the water to form a single phase, it meets the criteria of a solution.
No, its a compound, which is a pure substance. It is just that molecule and no other molecule, so it is not a mixture.
Water is a compound, so it is a pure substance.
No, water is a pure substance, a compound: H2O, so it is no mixture at all!
No, water is a pure substance, a compound: H2O, so it is no mixture at all!
It would be a mixture of various minerals and chemicals if any were present in the water before evaporation
by heating the mixture so the water will evaporate and the insoluble substance will remain
They are homogeneous. But they are not a mixture, so they are a pure substance
No, water is a pure substance, a compound: H2O, so it is no mixture at all!
Even if the apple juice is labelled as '100% pure', it is still a mixture of water particles, sugar particles, flavour particles, and vitamin particles. So it is a mixture, not a pure substance.
Ice is solid H2O so it is a pure substance, at least ideally.
Dissolved oxygen is a gas that is dissolved in water, so it is not a compound or mixture itself. It is a single substance dispersed uniformly in the water.
A mixture is two or more substances which have been combined so that each substance retains its own chemical identity. An example of a water mixture could simply be a sand castle- sand and water.
Magnesium is an element, so it's a pure substance.