Answer:
1. D. Consists of two or more substances that are physically combined
Explanation: In chemistry, a mixture is a material made up of two or more different chemical substance/substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
2. D. Air
Explanation: Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances. ... When mixed, individual substances keep their properties in a mixture, while if they form a compound their properties can change.
3. D. Hydrogen Chloride
4. A. Air
Explanation: In case of air, the majority of it contains nitrogen and oxygen. ... These gases cannot be readily differentiated from one another, and the air has a uniform composition of these gases throughout. Hence it is a homogenous mixture of various gases.
5. D. Water
6. C. The liquids did not mix but formed two layers
Explanation: Liquid water is held together by hydrogen bonds. Oils and fats not have any polar part and so for them to dissolve in water they would have to break some of water's hydrogen bonds. ... Water will not do this so the oil is forced to stay separate from the water.
7. D. Vinegar
Explanation: Vinegar is an example of a homogeneous mixture of acetic acid and water. Heterogeneous means "different throughout." A heterogeneous mixture has large parts that are different from each other.
8. D. The pulp component floats in a juice
9. A. Halo-halo
Explanation: When the combined substances are not evenly spread throughout, as in halo-halo, the mixture is said to be heterogeneous.
10. B. Water
