Acid-Base Chemistry
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Brewster
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CHEMISTRY
Acid-Base Chemistry
pH Level
The mysterious 'p' in pH hides a century-old scientific debate over its true meaning
34 hours ago
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Why does a change of one unit on the pH scale represent a tenfold change in acidity or basicity?
Because pH measures the temperature of the solution
Because pH is a logarithmic scale based on hydrogen ion concentration
Because pH values are assigned arbitrarily without a mathematical basis
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123_Steve
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CHEMISTRY
Acid-Base Chemistry
Acid
Acids wield power not just by burning but by reshaping molecules through proton and electron exchange
13 days ago
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What fundamental property distinguishes a Brønsted–Lowry acid from a Lewis acid?
Brønsted–Lowry acids accept protons, while Lewis acids donate electron pairs.
Brønsted–Lowry acids donate protons, while Lewis acids accept electron pairs.
Brønsted–Lowry acids and Lewis acids are the same and have no distinguishing properties.
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Feefo
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CHEMISTRY
Acid-Base Chemistry
pH Level
The pH scale measures acidity with a mysterious 'p' whose meaning is still debated
5 Feb 2026
0
Why is the pH scale logarithmic rather than linear?
Because pH measures temperature changes in solutions.
Because pH values are arbitrary numbers without chemical significance.
Because each pH unit represents a tenfold change in hydrogen ion concentration.
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Stevek113
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CHEMISTRY
Acid-Base Chemistry
Alkaline Materials
Alkaline materials play a crucial role in everyday products and energy storage technologies
1 Feb 2026
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What characteristic ion is primarily responsible for the basic nature of alkaline materials in aqueous solutions?
Hydrogen ions (H⁺)
Sodium ions (Na⁺)
Hydroxide ions (OH⁻)
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PeterPan
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CHEMISTRY
Acid-Base Chemistry
Acid
Acids are fundamental molecules that donate protons or accept electron pairs in chemical reactions
30 Jan 2026
0
What distinguishes a Brønsted–Lowry acid from a Lewis acid?
A Brønsted–Lowry acid donates a proton, while a Lewis acid accepts an electron pair.
A Brønsted–Lowry acid accepts an electron pair, while a Lewis acid donates a proton.
Both Brønsted–Lowry and Lewis acids only donate protons in chemical reactions.
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