Like Dissolves Like

Salt dissolves in water like ----

• Pepper dissolves in water

• Sugar dissolves in water

• Rocks dissolve in water

• Seeds dissolve in water

Which of the following substances is most likely to dissolve in water based on the principle 'like dissolves like'?

• Oil

• Salt

• Sand

• Plastic

Why does sugar dissolve in water?

• Because both are polar substances

• Because sugar is non-polar and water is polar

• Because sugar is ionic and water is covalent

• Because sugar is metallic and water is non-metallic

Tags

NGSS.MS-PS1-2

Which of the following solvents would best dissolve a non-polar solute?

• Water

• Ethanol

• Hexane

• Acetone

What type of bond is primarily responsible for the solubility of ionic compounds in water?

• Covalent bond

• Ionic bond

• Hydrogen bond

• Metallic bond

Which of the following is an example of a polar solvent?

• Benzene

• Hexane

• Water

• Carbon tetrachloride

In the phrase 'like dissolves like', what does 'like' refer to?

• Similar molecular weight

• Similar density

• Similar polarity

• Similar color

Which of the following would you expect to be soluble in a polar solvent?

• Oil

• Wax

• Salt

• Petrol

What is the main reason oil and water do not mix?

• Oil is denser than water

• Oil is non-polar and water is polar

• Oil is polar and water is non-polar

• Oil is ionic and water is covalent

Tags

NGSS.MS-PS1-1

Which of the following is a non-polar solvent?

• Water

• Ethanol

• Hexane

• Acetone