Chemical Changes

Flashcard
•
Science
•
5th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical change?
Back
A chemical change is a process where substances combine or break apart to form new substances with different properties.
2.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that in a chemical reaction, the total mass of the reactants equals the total mass of the products.
3.
FLASHCARD QUESTION
Front
What are reactants in a chemical equation?
Back
Reactants are the starting substances that undergo a chemical change in a reaction.
4.
FLASHCARD QUESTION
Front
What are products in a chemical equation?
Back
Products are the substances that are formed as a result of a chemical reaction.
5.
FLASHCARD QUESTION
Front
Give an example of a chemical change.
Back
An example of a chemical change is a candle burning, where wax (reactant) is transformed into carbon dioxide and water (products).
6.
FLASHCARD QUESTION
Front
What happens to the mass of substances during a chemical reaction?
Back
The mass of substances remains the same before and after a chemical reaction, according to the law of conservation of mass.
7.
FLASHCARD QUESTION
Front
What is a chemical equation?
Back
A chemical equation is a symbolic representation of a chemical reaction, showing the reactants and products.
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