Modeling Chemical Reactions

Flashcard
•
Science
•
7th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced chemical equation?
Back
A balanced chemical equation has the same number of each type of atom on both sides of the equation, indicating that mass is conserved during the reaction.
2.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it can only change forms.
3.
FLASHCARD QUESTION
Front
What is a reactant in a chemical reaction?
Back
A reactant is a substance that undergoes change during a chemical reaction.
4.
FLASHCARD QUESTION
Front
What is a product in a chemical reaction?
Back
A product is a substance that is formed as a result of a chemical reaction.
5.
FLASHCARD QUESTION
Front
What is a combustion reaction?
Back
A combustion reaction is a chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light and heat.
6.
FLASHCARD QUESTION
Front
What is the chemical formula for hydrogen peroxide?
Back
The chemical formula for hydrogen peroxide is H₂O₂.
7.
FLASHCARD QUESTION
Front
What happens to the mass of reactants and products in a chemical reaction?
Back
The total mass of the reactants is equal to the total mass of the products in a closed system.
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