Acids and Bases

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and typically has a sour taste.

Tags

NGSS.MS-PS1-1

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and usually has a bitter taste.

Front

What is the pH scale?

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The pH scale measures the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What does a pH of 7 indicate?

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A pH of 7 indicates that the solution is neutral, meaning it is neither acidic nor basic.

Front

What is the significance of pH in chemistry?

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pH is important because it affects chemical reactions, biological processes, and the solubility of substances.

Front

What is a neutral substance?

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A neutral substance is one that has a pH of 7, meaning it is neither an acid nor a base.

Front

What is the chemical formula for hydrochloric acid?

Back

The chemical formula for hydrochloric acid is HCl.

Tags

NGSS.MS-PS1-5

Front

What is the chemical formula for sodium hydroxide?

Back

The chemical formula for sodium hydroxide is NaOH.

Front

What is the role of indicators in acid-base chemistry?

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Indicators are substances that change color in response to changes in pH, helping to identify whether a solution is acidic or basic.

Front

What is a strong acid?

Back

A strong acid is one that completely dissociates in water, releasing all of its hydrogen ions (H+). Examples include hydrochloric acid (HCl) and sulfuric acid (H2SO4).