It is a mixture
Yes, the noun 'mixture' is a common noun; a general word for a combination of elements or substances; a word for any mixture of any kind.
it is the mixture off to metal
A mixture that results in a liquid. A very common mixture is salt-water.
No, it is a compound.
A common name for a mixture made of a liquid is a solution.
An immiscible mixture is a mixture which will not successfully combine into a homogeneous state. One of the most common examples of an immiscible mixture is oil and water.
no it's a compound
Yes, "solution" is a common noun. It refers to a mixture in which a liquid dissolves a solid, a plan to solve a problem, or a chemical mixture.
No, it is a compound, not a mixture. Its formula is MgO, and it contains Magnesium and Oxygen (two fairly common elements).
The most common kind is a mixture of metallic elements, called an "alloy".
true for A+ :)