Chemical Reactions
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A process in which substances (reactants) undergo a transformation to form new substances (products).
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
FLASHCARD QUESTION
Front
What are the main types of chemical reactions?
Back
Synthesis, decomposition, single replacement, double replacement, and combustion.
3.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
In a chemical reaction, mass is neither created nor destroyed; the total mass of reactants equals the total mass of products.
Tags
NGSS.MS-PS1-5
4.
FLASHCARD QUESTION
Front
How do you determine if a chemical equation is balanced?
Back
By ensuring that the number of atoms of each element is the same on both the reactant and product sides.
Tags
NGSS.MS-PS1-5
5.
FLASHCARD QUESTION
Front
What is a reactant in a chemical reaction?
Back
A substance that undergoes change during a chemical reaction.
Tags
NGSS.MS-PS1-2
6.
FLASHCARD QUESTION
Front
What is a product in a chemical reaction?
Back
A substance that is formed as a result of a chemical reaction.
7.
FLASHCARD QUESTION
Front
What role does a catalyst play in a chemical reaction?
Back
A catalyst speeds up a chemical reaction without being consumed in the process.
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