Chemical Equations

Chemical Equations

Assessment

Flashcard

Chemistry

8th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

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 along with their quantities.

2.

FLASHCARD QUESTION

Front

What does the coefficient in a chemical formula represent?

Back

The coefficient indicates the number of molecules or moles of a substance in a chemical reaction.

3.

FLASHCARD QUESTION

Front

How many atoms are in one molecule of water (H₂O)?

Back

There are 3 atoms in one molecule of water: 2 hydrogen (H) atoms and 1 oxygen (O) atom.

4.

FLASHCARD QUESTION

Front

What is the Law of Conservation of Matter?

Back

The Law of Conservation of Matter states that matter cannot be created or destroyed in a chemical reaction; it only changes form.

5.

FLASHCARD QUESTION

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

6.

FLASHCARD QUESTION

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

7.

FLASHCARD QUESTION

Front

How do you balance a chemical equation?

Back

To balance a chemical equation, adjust the coefficients of the reactants and products to ensure the same number of each type of atom on both sides.

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