Question

b. solvent
c. homogeneous mixture
d. heterogeneous mixture

1. a mixture where parts are not evenly mixed is called a

a. homogeneous mixture
b. heterogeneous mixture
c. compound
d. solution

1. which of the following is a compound?

a. o₂
b. co₂
c. trail mix
d. bubble solution
part b — short answer

1. explain why bubble solution is not a pure substance.

1. why is soap needed in order for bubbles to form?

1. describe one observation you made while blowing bubbles in class.

1. identify the solute and solvent in a typical bubble mixture.

solute: _______________
solvent: _______________

Explanation:

Question 7

A heterogeneous mixture is defined as a mixture where the components are not evenly distributed or mixed. A homogeneous mixture has evenly mixed parts, a compound is a pure substance with a fixed composition, and a solution is a type of homogeneous mixture. So the correct answer is the one that matches the definition of a mixture with unevenly mixed parts.

A compound is a substance made of two or more different elements chemically bonded. \(O_2\) is an element (diatomic), trail mix is a mixture, and bubble solution is a mixture. \(CO_2\) is made of carbon and oxygen atoms bonded, so it's a compound.

A pure substance has a fixed composition (either an element or a compound). Bubble solution contains soap, water, and possibly other additives. These components are physically mixed (not chemically bonded in a fixed ratio for the entire solution), so it is a mixture, not a pure substance.

Answer:

B. Heterogeneous mixture

Question 8