🔬 Science Trivia
Quiz Set 2 — Chemistry
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is the chemical symbol for gold?
Gold's symbol Au comes from the Latin word 'aurum'.
Question 2 of 10
How many elements are in the periodic table?
As of 2024, there are 118 confirmed elements in the periodic table.
Question 3 of 10
What is the pH of pure water?
Pure water has a neutral pH of 7 at 25°C.
Question 4 of 10
What gas makes up most of Earth's atmosphere?
Nitrogen makes up about 78% of Earth's atmosphere.
Question 5 of 10
What is the chemical formula for table salt?
Table salt is sodium chloride, with the formula NaCl.
Question 6 of 10
Which element is a liquid at room temperature?
Mercury (Hg) is the only metal that is liquid at standard room temperature.
Question 7 of 10
What is the process of a solid turning directly into a gas?
Sublimation is the direct transition from solid to gas phase.
Question 8 of 10
What type of bond involves sharing electrons?
Covalent bonds form when atoms share electrons between them.
Question 9 of 10
What is the lightest element?
Hydrogen is the lightest and most abundant element in the universe.
Question 10 of 10
What is the chemical formula for water?
Water is H2O — two hydrogen atoms bonded to one oxygen atom.
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