That is an element.
A solution.
Where two elements or compunds are next to each other (in contact with) and are not reacting. Like when you mix salt and sugar. (Solutions are when there is a substance mixed in and dissolved into another substance).
A pure substance is a kind of matter which is not mixed with any other solution or substance and can't be saperated futher.
Yes
An acid.
A solution.
Yes, it is a pure substance but can be mixed with other gases.
A mixture is not a pure substance since it contains various substances. A pure substance in one that is not mixed with any other thing.
The purity of a vitamin is the same as the purity of any other substance; it means that you have only that substance and nothing else mixed in with it.
Narcotics for pain are in prescribed medications. They are a highly controlled substance and you cannot get any without a prescription and they are usually mixed with other pain killers and are called mixed-opiates.
It is a mixed substance. ---------------------------------------------- It is a mixture
Mixture; the tea and water
Carbon dioxide is a compound of two gases; Carbon and Oxygen. Therefore it is not a mixture, or mixed substance.
A one element substance is a pure substance. It is not mixed physically or chemically with other substances or elements.
It is pure if this sugar is not mixed with another substance.
A mixture is when a substance consisting of two or more substances mixed together. A solution is is a substance with two or more substances that are completely dissolved in the other.
Yes,mixing with other compounds can change the properties of a substance. The melting point, boiling point changes. Chemical properties are also can be changed.