Question

question 8 (1 point)
match the material with its use in the syringe design challenge:

column a \t\t\t column b

1. ___ hot water \t\t a. provides the heat source to increase particle

\t\t\t\t\t\t movement

1. ___ syringe \t\t\t b. shows the observable scale movement of

\t\t\t\t\t\t particles

1. ___ thermometer \t\t c. tracks the time of the experiment
2. ___ stopwatch \t\t d. measures the temperature change

question 9 (1 point)
what happens when a bond is broken in a system?

a energy always increases.
b bonds never affect energy.
c energy always decreases.
d energy can be absorbed or released.

Explanation:

For Question 8:

1. Hot Water acts as a heat source, which increases particle movement.
2. A syringe's scale shows the observable movement of particles as conditions change.
3. A thermometer is a tool made to measure temperature changes.
4. A stopwatch is used to track how long an experiment takes.

For Question 9:

Breaking a chemical bond requires energy to be absorbed by the system to overcome the attractive forces holding the atoms together.

Answer:

Question 8:

1. Hot Water - a. Provides the heat source to increase particle movement
2. Syringe - b. Shows the observable scale movement of particles
3. Thermometer - d. Measures the temperature change
4. Stopwatch - c. Tracks the time of the experiment

Question 9:

a. Energy always increases.