Gases

Question 1

What force in liquids causes surface tension?

Revolt · Accepted Answer

B: intermolecular forces

Question 2

A student places a small amount of water in a glass dish and then carefully places a small paperclip on the surface of the water. The paperclip floats. What happens if the student adds a drop or two of dish soap to the water? Check all that apply.

Revolt · Accepted Answer

A: The paperclip falls through the water to the bottom of the dish.; B: The soap acts as a surfactant.; D: The soap decreases the surface tension of the water.

Question 3

Pure maple syrup has a high sugar content. Its composition is 70% sucrose (CHO). If you heat maple syrup what will happen to its viscosity?

Revolt · Accepted Answer

A: It will decrease.

Question 4

Consider a mixture of oil and water. What terms would you use to describe this mixture? Check all that apply.

Revolt · Accepted Answer

A: heterogeneous; C: immiscible

Gases Answers

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