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Essential Chemistry Basics

Chemistry

Test your knowledge on fundamental chemistry concepts, common elements, and everyday chemical facts.

science elements periodic-table

17 Questions Easy Ages 5+ Apr 7, 2026

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About this Study Set

This study set covers Chemistry through 17 practice questions. Test your knowledge on fundamental chemistry concepts, common elements, and everyday chemical facts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 17 questions from the Essential Chemistry Basics study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the chemical symbol for Gold?

A Ag
B Au
C Fe
D Pb

2 Which common substance has the chemical formula H2O?

A Salt
B Vinegar
C Water
D Sugar

3 What is the center of an atom called?

A Electron
B Orbit
C Nucleus
D Shell

4 Which gas do humans breathe out as a waste product?

A Oxygen
B Nitrogen
C Carbon Dioxide
D Hydrogen

5 What is the pH level of pure water?

A 1
B 7
C 10
D 14

6 Which particle in an atom has a negative charge?

A Proton
B Neutron
C Electron
D Nucleus

7 What is the most abundant gas in Earth's atmosphere?

A Oxygen
B Carbon Dioxide
C Nitrogen
D Argon

8 What is the common name for Sodium Chloride?

A Baking Soda
B Table Salt
C Epsom Salt
D Bleach

9 Which element is known as the 'building block of life'?

A Iron
B Calcium
C Carbon
D Gold

10 Which metal is liquid at room temperature?

A Silver
B Iron
C Mercury
D Copper

11 What is the chemical symbol for Oxygen?

A Ox
B O
C O2
D On

12 What is the lightest chemical element?

A Helium
B Hydrogen
C Lithium
D Oxygen

13 At what temperature does water freeze in degrees Celsius?

A -10°C
B 0°C
C 32°C
D 100°C

14 What are the three main states of matter?

A Solid, Liquid, Gas
B Hot, Cold, Warm
C Hard, Soft, Brittle
D Big, Small, Tiny

15 Which gas is used to inflate balloons to make them float?

A Oxygen
B Helium
C Nitrogen
D Carbon

16 What is the chemical symbol for Iron?

A Ir
B In
C Fe
D I

17 What is the name of the table that lists all known elements?

A Element List
B Chemical Chart
C Periodic Table
D Atomic Map

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