Question

choose the best answers.
6.1) __ a(n) __ is a mixture where all the different types of matter are evenly mixed.
a. solution b. compound c. alloy
6.2) __ when something __, it becomes evenly mixed with the other type of matter.
a. dilutes b. dissolves c. hardens
6.3) which four choices are examples of solutions?
□ air □ salad
□ cereal and milk □ salt in water
□ hot chocolate □ sugar in water
6.4) __ a __ is the matter that dissolves another type of matter.
a. solute b. solution c. solvent
6.5) __ the matter that gets dissolved in a solution is called a __.
a. solid b. solvent c. solute

Explanation:

• 6.1: A solution is a homogeneous mixture (all components evenly mixed). A compound is a pure substance (not a mixture). An alloy is a mixture but usually of metals.
• 6.2: When something dissolves, it spreads evenly in another substance. Diluting is adding more solvent. Hardening is a physical change like a liquid becoming solid.
• 6.3: Air (gaseous solution - different gases evenly mixed), salt in water (solid - liquid solution), sugar in water (solid - liquid solution), hot chocolate (assuming well - mixed, can be a solution). Cereal and milk is a heterogeneous mixture (not evenly mixed), salad is a heterogeneous mixture.
• 6.4: A solvent is the substance that dissolves another (the solute). A solute is the dissolved substance. A solution is the mixture.
• 6.5: The solute is the substance that gets dissolved in a solution. A solvent is the dissolving substance. A solid is a state of matter (not specific to dissolution in a solution context).

Answer:

6.1) A. solution
6.2) B. dissolves
6.3) air, salt in water, sugar in water, hot chocolate
6.4) C. solvent
6.5) C. solute