Chemical Reactions Practice Quiz
Authored by Timothy Koehler
Chemistry
9th - 12th Grade
NGSS covered
Used 447+ times
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About
This quiz comprehensively covers fundamental chemical reactions and equation balancing, appropriate for high school chemistry students in grades 9-12. The questions assess students' understanding of chemical reaction indicators (gas formation, color changes, temperature changes), the distinction between reactants and products, and the critical concept of mass conservation. Students need to master the Law of Conservation of Mass, recognize the four main types of chemical reactions (synthesis, decomposition, single-replacement, and double-replacement), and demonstrate proficiency in balancing chemical equations by adjusting coefficients. The quiz requires students to identify evidence of chemical reactions versus physical changes, understand stoichiometric relationships in balanced equations, and apply their knowledge to classify specific reaction types based on molecular formulas and reaction patterns. Created by Timothy Koehler, a Chemistry teacher in US who teaches grade 9-12. This assessment serves as an excellent tool for formative assessment, allowing teachers to gauge student comprehension before moving to more complex reaction mechanisms and stoichiometry calculations. The quiz works effectively as a warm-up activity to activate prior knowledge, as homework to reinforce classroom instruction, or as review material before unit exams. Teachers can use this to identify common misconceptions about mass conservation and reaction classification, then adjust instruction accordingly. The varied question formats help students practice both conceptual understanding and practical application of balancing equations. This quiz aligns with NGSS HS-PS1-7 (using mathematical representations to support the claim that atoms are conserved during a chemical reaction) and supports Common Core mathematical practices in scientific contexts through stoichiometric reasoning and equation manipulation.
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of these is NOT a sign of a chemical reaction?
A gas is given off
The material dissolves
Heat is released
A color change occurs
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The substance that is formed in a chemical reaction is called the
polymer.
reactant.
product.
radical.
Tags
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a balanced chemical equation, the mass of the reactant is equal to the
atoms in a molecule.
atomic mass of the elements.
volume of the reactacts.
mass of the products.
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens in a chemical reaction?
Atoms are destroyed.
Atoms are created.
Atoms are rearranged.
Atoms gain/lose atomic mass.
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The substance(s) on the right side of the arrow in a chemical equation is called the
catalyst.
precipitate.
reactant.
product.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is NOT a "Tell-Tell" evidence of a possible chemical reaction?
formation of a gas
state of matter change
formation of a solid
color change
temperature change
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A balanced chemical reaction obeys the Law of
Ideal Gases.
Definite Proportions.
Conservation of Matter.
Conservation of Energy.
Demand
Tags
NGSS.MS-PS1-5
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