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Chemical Formula Quizzes, Questions & Answers

Sitting through a chemistry class can be hard, especially when talking about chemical formulas – which represent elements and compounds as equations. For example, aluminum sulfate has the chemical formula of Al2(SO4)3. You’re probably familiar with H2O, which is two hydrogen molecules and one oxygen molecule, coming together to create water.
 
Here’s a test – what does the chemical formula of Al(OH)3 create? You know that aluminum is Al on the periodic table, oxygen is O, and hydrogen is H. Put this all together and you’ve got aluminum hydroxide! Chemical formulas can become very complicated, adding in bonds (=) and positive (+) and negative (-) charged molecules. To see how far you’ve come in learning chemical formulas, test your knowledge in one of our chemistry quizzes – they’re bound to create a reaction in your brain!

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10th Grade

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Chemical Formula (March 8, 2015)
Chemical Formula (March 8, 2015)

Gives the mind a piece of what daily chemicals are in formulas. Called chemical compounds/formulas.

Questions: 11  |  Attempts: 3746   |  Last updated: Mar 20, 2023
  • Sample Question
    What is the Chemical Formula for Oxygen?
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Year 10 Chemical Formulas Test
Year 10 Chemical Formulas Test

Revision of Chemical Formulas     This 10-item test will measure how well you understood the rules in writing down  the correct chemical formulas of compounds.  You have 5 minutes to...

Questions: 10  |  Attempts: 11153   |  Last updated: Mar 22, 2023
  • Sample Question
    Calcium chloride
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Chemical Formulas - 2nd Attempt
Chemical Formulas - 2nd Attempt

This quiz is for those of you who would like a 2nd chance at improving your first chemical formula quiz.  Remember, whatever score you receive here will override your first quiz score.

Questions: 20  |  Attempts: 792   |  Last updated: Mar 16, 2023
Geology 05: Chemical Formula Of Ore Minerals
Geology 05: Chemical Formula Of Ore Minerals

Minerals have different chemical composition. Can you match the chemical formula  with the correct name of the ore mineral?

Questions: 23  |  Attempts: 366   |  Last updated: Mar 20, 2023
  • Sample Question
    Cu2S
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C03 - Chemical Formulae And Equation
C03 - Chemical Formulae And Equation

Chemistry Form 4 Chapter 2 Chemical Formulae and Equation

Questions: 27  |  Attempts: 317   |  Last updated: Mar 21, 2023
  • Sample Question
    The proton number of sodium atom is 11 and its molar mass is 23 g/mol. What is the relative atomic mass sodium atom.
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