9th Grade Theoretical Chemistry Quizzes, Questions & Answers

Spark curiosity and test your child’s 9th grade Theoretical Chemistry knowledge with our engaging quizzes! Read more

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Take this fun History of the atomic theory quiz now and expand your knowledge. Atoms are the smallest units of matter, and they combine to form compounds. Do you know that a chemical reaction is only said to have occurred if...

Questions: 13  |  Attempts: 4651   |  Last updated: Mar 5, 2025
  • Sample Question
    Who proposed that everything was made of tiny particles, called atomos, surrounded by empty space?
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Are you aware of atomic theory? Atomic theory is the scientific concept that matter is made up of atoms. According to this perspective, if you were to take a piece of matter and cut it into smaller fragments that are all the...

Questions: 9  |  Attempts: 2239   |  Last updated: Mar 22, 2025
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    What scientist was the first to conclude through experimentation that atoms have positive charges in their nuclei?
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Stoichiometry is the quantitative interpretation of the amount moles of the matter in a chemical reaction. It is also known as the molar bookkeeping of chemistry which means, the study of chemistry and its uses in various fields...

Questions: 10  |  Attempts: 1749   |  Last updated: Jul 16, 2025
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    A mole ratio can be the ratio of -
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This quiz explores foundational concepts of atomic theory, focusing on Dalton's postulates and the early Greek philosophy of matter.

Questions: 15  |  Attempts: 165   |  Last updated: Mar 21, 2025
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    _____________ gave the first serious thought to the thought "what is matter made of ?"
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