About Chemistry Quiz #849
Chemistry Quiz #849 was the quiz for Thursday, October 29, 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 #849
- What is it called when a liquid turns into a gas?
- What is the chemical formula for oxygen gas?
- Which particle in an atom has a negative charge?
- Bronze is mainly a mix of copper and which other metal?
- What is rock containing a useful metal called?
- A substance with a pH below 7 is called what?
- Which substance has the chemical formula CH₄?
- What is the chemical formula for ammonia?
- What is the chemical formula for hydrogen peroxide?
- Which method separates the colours in ink on paper?
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 #848, Oct 28
- Chemistry Quiz #847, Oct 27
- Chemistry Quiz #846, Oct 26
- Today’s quiz, #851
Every day of the last 60 is in the puzzle archive.