chemical reactions

Flashcard
•
Chemistry
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical reaction?
Back
A chemical reaction is a process in which substances (reactants) undergo a transformation to form new substances (products) with different properties.
2.
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, ensuring the law of conservation of mass is followed.
3.
FLASHCARD QUESTION
Front
What does it mean to balance a chemical equation?
Back
Balancing a chemical equation involves adjusting the coefficients of the reactants and products to ensure that the number of atoms for each element is equal on both sides.
4.
FLASHCARD QUESTION
Front
What is the law of conservation of mass?
Back
The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
5.
FLASHCARD QUESTION
Front
What are reactants in a chemical reaction?
Back
Reactants are the starting substances that undergo a chemical change in a reaction.
6.
FLASHCARD QUESTION
Front
What are products in a chemical reaction?
Back
Products are the substances formed as a result of a chemical reaction.
7.
FLASHCARD QUESTION
Front
How do you identify a chemical reaction?
Back
Signs of a chemical reaction include color change, temperature change, gas production, and the formation of a precipitate.
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