About Chemistry Quiz #847
Chemistry Quiz #847 was the quiz for Tuesday, October 27, 2026: 10 questions: 3 easy, 4 medium and 3 hard. Everyone who played Chemistry Quiz that day got the same quiz, and it stays here to play for 60 days.
The questions of Chemistry Quiz #847
- Which of these is a physical change, not a chemical change?
- Which metal is most used in electrical wires?
- What scale measures how acidic or basic a substance is?
- What is it called when a solid turns straight into a gas without melting?
- What is a substance that cannot be broken down into simpler substances by chemical reactions?
- What is a substance that speeds up a reaction without being used up?
- Which lab tool is used to move small, exact amounts of liquid?
- What is added to steel to make it stainless?
- Which metal melts in your hand, at about 30 °C?
- What is coating iron or steel with zinc to stop rust called?
The answer options and the answers appear only when you play the quiz, one question at a time.
New to Chemistry Quiz? The rules, tips and common questions are on the Chemistry Quiz page, and Periodic Table Memory Tips for the Quiz goes into strategy.
Other days of Chemistry Quiz
- Chemistry Quiz #850, Oct 30
- Chemistry Quiz #849, Oct 29
- Chemistry Quiz #848, Oct 28
- Chemistry Quiz #846, Oct 26
- Chemistry Quiz #845, Oct 25
- Chemistry Quiz #844, Oct 24
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.