2.2-Mixtures - 1

What is the definition of a mixture?

• A chemical blend of two or more substances

• A physical blend of two or more substances

• A reaction between two or more substances

Recognizing air as a mixture of gases is more difficult because it is:

• A compound

• A pure substance

• A heterogeneous mixture

• A homogeneous mixture

What contributes to the humidity in the air?

• Water vapors

• Carbon dioxide

• Oxygen

• Nitrogen

What are the two main types of mixtures?

• Chemical and physical mixtures

• Homogeneous and heterogeneous mixtures

• Solid and liquid mixtures

• Gas and liquid mixtures

How is a homogeneous mixture defined?

• It has an uneven composition throughout

• It is a mixture where the substances are not easily separated

• It has a uniform composition throughout

• It has visible different layers of substances

What characterizes a heterogeneous mixture?

• It does not have a uniform composition throughout

• It has a uniform composition throughout

• It is difficult to distinguish the substances

What type of mixture is vinegar, which is a combination of water and acetic acid?

• Homogeneous

• Heterogeneous

• Compound

• Pure substance

Which category describes a salad, composed of various green vegetables?

• Homogeneous

• Heterogeneous

• Compound

• Element

What is another name for a homogeneous mixture?

• Solvent

• Solution

• Solute

• Suspension

What term describes any part of a sample with a uniform composition and properties?

• Mixture

• Phase

• Suspension

• Solution