Matter — Quiz

Question 1

Sodium chloride and fluorite both have cubic atomic arrangements. Which statement best explains why they have different relative hardness values?

Revolt · Accepted Answer

Sodium chloride is softer because its ionic bonds are weaker than those in fluorite.

Question 2

Which element is least likely to form crystalline structures on its own, and why?

Revolt · Accepted Answer

Hydrogen, because it has only one outer electron and cannot form extended lattices.

Question 3

Which atom shown is most likely to form a single covalent bond by sharing one outer electron?

Revolt · Accepted Answer

hydrogen

Question 4

Choose the correct answer from each drop-down menu to complete the statement.

Revolt · Accepted Answer

likely|reactive|full

Question 5

Choose the correct answer from each drop-down menu to complete the statements.

Revolt · Accepted Answer

remain constant|lose

Question 6

During which phase of the experiment does water release energy without a change in temperature?

Revolt · Accepted Answer

between 0 and 2 minutes

Question 7

Classify the processes based on whether they release or absorb energy.

Revolt · Accepted Answer

freezing,condensation|melting,evaporation

Question 8

Why does the temperature remain constant at 0°C when water is freezing?

Revolt · Accepted Answer

Energy is being removed, but it is used to rearrange molecules into a solid structure rather than lowering temperature.

Matter — Quiz Answers