Electrolytes and Their Properties

Electrolytes and Their Properties

Assessment

Interactive Video

Chemistry, Science, Biology

9th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

Professor Dave explains electrolytes, substances that dissociate into ions in water, enabling electrical conductivity. He categorizes them into strong, weak, and non-electrolytes based on dissociation extent. Strong electrolytes fully dissociate, weak ones partially, and non-electrolytes do not dissociate. Conductivity is measured by ion presence in solution. Ionic electrolytes dissociate into cations and anions, while covalent electrolytes undergo chemical reactions to form ions. Non-electrolytes, like ethanol, do not dissociate significantly. The video emphasizes understanding these categories and their properties.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary characteristic of an electrolyte when dissolved in water?

It dissociates into ions.

It evaporates quickly.

It changes color.

It forms a solid.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of electrolyte completely dissociates in solution?

Partial electrolyte

Strong electrolyte

Weak electrolyte

Non-electrolyte

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can we categorize substances as strong, weak, or non-electrolytes?

By their color change.

By their taste.

By their boiling point.

By measuring their electrical conductance.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a key feature of ionic electrolytes like potassium chloride?

They do not dissolve in water.

They form covalent bonds.

They dissociate into cations and anions.

They are non-conductive.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do covalent electrolytes like acetic acid behave in solution?

They undergo a chemical reaction with the solvent.

They evaporate.

They form a precipitate.

They remain unchanged.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to hydrochloric acid when dissolved in water?

It forms a gas.

It remains a neutral compound.

It completely transfers protons to water molecules.

It becomes a non-electrolyte.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the solvent in the behavior of electrolytes?

It evaporates quickly.

It accepts or donates protons.

It provides ions.

It acts as a catalyst.

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