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Chemistry: Acids and Bases

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Questions and Answers

Which of the following is classified as a strong acid?

HCl (correct)

H₂CO₃

CH₃COOH

What do acids release when dissolved in water?

Hydrogen ions (H⁺) (correct)

Sodium ions (Na⁺)

Hydroxide ions (OH⁻)

Chloride ions (Cl⁻)

Which indicator would likely turn blue in a basic solution?

Methyl orange

Phenolphthalein

Litmus paper (correct)

Universal Indicator

Which of the following definitions correctly describes a base?

A substance that releases OH⁻ ions in solution. Signup and view all the answers

Which weak acid is represented by the formula H₂CO₃?

Carbonic acid Signup and view all the answers

What is produced when an acid reacts with a metal carbonate?

Salt, Carbon Dioxide, and Water Signup and view all the answers

Which of the following is a characteristic of strong bases?

They contain metal hydroxides. Signup and view all the answers

Which equation correctly represents a neutralization reaction?

Acid + Base → Salt + Water Signup and view all the answers

Which of the following is an example of a weak base?

$NH_4OH$ Signup and view all the answers

When an acid reacts with a metal, what two products are formed?

Salt and Hydrogen Gas Signup and view all the answers

Study Notes

Strong Acids

HCL: Hydrochloric acid
HNO₃: Nitric acid
H₂SO₄: Sulphuric acid
H₃PO₄: Phosphoric acid
HF: Hydrofluoric acid

Weak Acids

CH₃COOH: Ethanoic acid
H₂CO₃: Carbonic acid

Calculating Mass

m = mass
M = molar mass
n = number of moles
Avogadro's number: 6.02 x 10²³ molecules/mole

pH Scale

Universal Indicator: Red -> Acid, Green -> Neutral, Blue -> Base
Litmus Paper: Red -> Acid, Blue -> Base
PPT/Phenolphthalein: Colorless -> Acid, Pink -> Base

Acids

An acid is a proton donor
Releases H⁺ ions in water

Bases

A base is a proton acceptor
Releases OH⁻ ions in water

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Description

Test your knowledge on strong and weak acids, their formulas, and properties. This quiz also covers the calculation of mass and the pH scale for acids and bases. Challenge yourself to see how well you understand these fundamental concepts in chemistry!