Question

question 2
select oxygen and match the following observations for each state of matter for oxygen.
answer choices:
drag the answer choices to the correct category over here!
-216°c
medium density
solid
liquid
gas
-246°c
highest density
lowest density
-160°c

Explanation:

Step1: Recall the properties of states of matter

Solids have the highest density, liquids have medium density, and gases have the lowest density.

Step2: Recall the phase - change temperatures of oxygen

The melting point of oxygen is \(-218.4^{\circ}C\) and the boiling point is \(-183^{\circ}C\). At temperatures below the melting point (\(\lt - 218.4^{\circ}C\)), oxygen is solid. Between the melting point and boiling point (\(-218.4^{\circ}C\lt T\lt - 183^{\circ}C\)), oxygen is liquid. At temperatures above the boiling point (\(\gt - 183^{\circ}C\)), oxygen is gas.

For the given temperatures:

• \(-246^{\circ}C\lt - 218.4^{\circ}C\), so at \(-246^{\circ}C\), oxygen is solid.
• \(-216^{\circ}C\) is between \(-218.4^{\circ}C\) and \(-183^{\circ}C\), so at \(-216^{\circ}C\), oxygen is liquid.
• \(-160^{\circ}C\gt - 183^{\circ}C\), so at \(-160^{\circ}C\), oxygen is gas.

Answer:

• Solid: \(-246^{\circ}C\), Highest density
• Liquid: \(-216^{\circ}C\), Medium density
• Gas: \(-160^{\circ}C\), Lowest density