chemical reactions

chemical reactions

Assessment

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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