Matter & Its Interactions PS.8.1

Matter & Its Interactions PS.8.1

Assessment

Flashcard

Science

8th Grade

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is an atom?

Back

The smallest unit of matter that retains the properties of an element.

2.

FLASHCARD QUESTION

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

3.

FLASHCARD QUESTION

Front

What does it mean for a chemical reaction to be balanced?

Back

The number of atoms of each element is the same on both sides of the equation.

4.

FLASHCARD QUESTION

Front

What is the law of conservation of mass?

Back

In a chemical reaction, matter is neither created nor destroyed; the total mass of reactants equals the total mass of products.

5.

FLASHCARD QUESTION

Front

What are nonreactive gases?

Back

Gases that do not readily undergo chemical reactions under standard conditions, such as helium (He) and argon (Ar).

6.

FLASHCARD QUESTION

Front

How many atoms are in the molecule HCs₃NaO₂?

Back

7

7.

FLASHCARD QUESTION

Front

What is the difference between reactants and products in a chemical reaction?

Back

Reactants are the starting substances that undergo a chemical change, while products are the substances formed as a result of the reaction.

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