Part 2 Study Guide

Part 2 Study Guide

Assessment

Flashcard

Science

9th 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 the primary force that holds the nucleus of an atom together?

Back

Strong nuclear force.

2.

FLASHCARD QUESTION

Front

What does the law of conservation of mass state in a chemical reaction?

Back

Mass is neither created nor destroyed.

3.

FLASHCARD QUESTION

Front

Why are hydrocarbons considered non-polar molecules?

Back

They have a uniform distribution of charge.

4.

FLASHCARD QUESTION

Front

What is the purpose of a catalyst in a chemical reaction?

Back

To speed up the reaction.

5.

FLASHCARD QUESTION

Front

What is the term for a solid turning directly into a gas without passing through the liquid state?

Back

Sublimation.

6.

FLASHCARD QUESTION

Front

What is the electromagnetic force?

Back

A fundamental force that causes interactions between charged particles.

7.

FLASHCARD QUESTION

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its identity, while a chemical change results in the formation of new substances.

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