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Try a quick Chemistry round

Answer easy, medium, and hard questions. Install the app for the full 18-question duel.

Question 1 of 3 Easy

These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.

1 Easy

What chart arranges all the chemical elements?

Answer: Periodic table
2 Medium

What element replaces iron in the blood of an octopus?

Answer: Copper
3 Hard

Which substance is theoretically harder than a standard cubic diamond?

Answer: Wurtzite boron nitride
4 Easy

What element makes up both diamonds and pencil lead?

Answer: Carbon
5 Medium

At what temperature Celsius does water reach its maximum density?

Answer: 4°C
6 Hard

Why is gold the only metal that has a yellow color?

Answer: Relativistic effects