Solvation and Dissociation

Multiple Choice

The word dissociate, in the context of dissolving substances, means

• to break apart into positive and negative charges

• to disappear into the liquid

• to form a solid once mixed with a liquid

• To join together

• to mix together

Multiple Choice

Which explains why sugar does not conduct electricity when dissolved in water?

• Sugar particles are too big to carry electricity.

• Sugar particles do not break into charged particles upon dissolution.

• Sugar particles break into ions once mixed with water.

• Sugar particles do not have electrons in them.

Drag and Drop

​ ​ ​

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is an ionic substance whereas ​

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is a covalent compound.

Drag these tiles and drop them in the correct blank above

NaCl

Sugar

Multiple Choice

Which of the following correctly explains the difference between sugar and salt when dissolved in water?

• Salt dissolves in water and dissociate to form ions.

• Salt dissolves in water but do not dissociate.

• Sugar dissolves in water and dissociates into ions.

• Sugar does not dissolve in water but dissociate into ions.

• Salt does not dissolve in water but dissociates completely.

Multiple Choice

Which of the following is an ionic compound?

• NaF

• CO₂

• CCl₄

• H₂O

Multiple Choice

Which of the following is a covalent compound?

• C₆H₁₂O₆

• NaCl

• MgO

• BaF₂

• Na₂CO₃