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# Unit 2: Acids, bases, and salts

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## About this unit

In this unit, we will be talking about the basic concepts of acids, bases, and salts. We will cover acid and base definitions, reactions, strength (pH), chemical compounds of salts, and their uses.

### Practice

- Litmus testGet 3 of 4 questions to level up!
- Phenolphthalein and methyl orange testGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

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### Practice

- Identifying the gas releasedGet 3 of 4 questions to level up!
- Detection of gasesGet 3 of 4 questions to level up!
- Identify the salt formedGet 5 of 7 questions to level up!
- Overview: Reactions of acids and basesGet 5 of 7 questions to level up!
- Identify the nature of metal oxide and non metal oxideGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Practice

- Conduction and non conduction of electricityGet 3 of 4 questions to level up!
- Definition of acids and basesGet 3 of 4 questions to level up!
- Effect of dilution of acids and basesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Effect of pH on strength of acids and basesGet 3 of 4 questions to level up!
- Identify the nature of a substance based on pHGet 5 of 7 questions to level up!
- Effect of concentration on pH changeGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Identify the nature of saltsGet 3 of 4 questions to level up!

### Learn

### Practice

- Water of crystallizationGet 3 of 4 questions to level up!
- Identify chemicals based on their usesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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Level up on all the skills in this unit and collect up to 1,600 Mastery points!