ANSWER:
1. A mixture is a material composed of two or more simpler substances in chemistry.
2. There are two types of mixtures: heterogeneous and homogeneous. Heterogeneous mixtures have visually distinguishable components, while homogeneous mixtures appear uniform throughout. The most common type of homogenous mixture is a solution, which can be a solid, liquid, or gas.
3. Homogeneous:
1. kool-aid
2. salt water
3. air
4. coffe
5. whiskey
Heterogeneous:
1. chocolate chip cookie
2. soup
3. earth
4. cookie dough ice cream
5. trail mix
4. (a) The term saturated solution is used in chemistry to define a solution in which no more solvent can be dissolved. It is understood that saturation of the solution has been achieved when any additional substance that is added results in a solid precipitate or is let off as a gas.
Eg: Saltwater
(b) Pure substance: A material that is composed of only one type of particle.
Eg: Gold, oxygen and water.
(c) Colloid: A homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.
Eg: Gels, sols and emulsions.
d) Suspension: A suspension is a heterogeneous mixture in which solute-like particles settle out of a solvent-like phase sometime after their introduction. We apply the word suspension when particles are big enough to eventually settle.
Eg: wheat flour and water.
Explanation:
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