Trivia questions and answers, drawn fresh from the well

• Intermediate Intermediate difficulty.
• Chemistry

Which metallic element is liquid at ordinary room temperature?

Answer

Mercury

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• Intermediate Intermediate difficulty.
• Chemistry

What is the SI base unit for the amount of a substance?

Answer

Mole

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• Intermediate Intermediate difficulty.
• Chemistry

The elements in Group 18 of the periodic table are collectively known by what name?

Answer

Noble gases

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• Intermediate Intermediate difficulty.
• Chemistry

What is the general term for a substance that speeds up a chemical reaction without being consumed by it?

Answer

Catalyst

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• Intermediate Intermediate difficulty.
• Chemistry

What is the chemical formula of methane?

Answer

CH4

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• Intermediate Intermediate difficulty.
• Chemistry

What is the hardest known naturally occurring material?

Answer

Diamond

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• Intermediate Intermediate difficulty.
• Chemistry

Which Russian chemist is credited with creating the first widely recognized periodic table of elements?

Answer

Dmitri Mendeleev

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• Easy Easy difficulty.
• Chemistry

What is the pH of pure water at 25 degrees Celsius?

Answer

7

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• Easy Easy difficulty.
• Chemistry

What is the lightest chemical element?

Answer

Hydrogen

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• Easy Easy difficulty.
• Chemistry

Diamond and graphite are both naturally occurring forms of which single element?

Answer

Carbon

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• Easy Easy difficulty.
• Chemistry

What is the dense central part of an atom, containing protons and neutrons, called?

Answer

Nucleus

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• Easy Easy difficulty.
• Chemistry

Which element makes up roughly 78% of Earth's atmosphere by volume?

Answer

Nitrogen

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