Chemistry Chapter 1 Flashcards

Questions and Answers

What is chemistry?

The study of the composition, structure, and properties of matter and the changes that matter undergoes

What branch of chemistry is most concerned with the study of carbon compounds?

Organic Chemistry

What is meant by the word chemical, as used by scientists?

Anything that has a definite composition

What is mass?

A measure of the amount of matter Signup and view all the answers

What is volume?

The amount of three-dimensional space an object occupies Signup and view all the answers

How does the composition of a pure substance differ from that of a mixture?

A pure substance is an element or a compound but a mixture is made from various substances Signup and view all the answers

Define property.

A characteristic that defines an entire group of substances Signup and view all the answers

How are properties useful in classifying materials?

Properties can be used to distinguish between substances and to separate them. Classify an unknown substance as a member of that group. Signup and view all the answers

What is the difference between extensive properties and intensive properties?

Extensive properties depend on the matter that is present while intensive does not depend on matter present Signup and view all the answers

Define chemical property.

A substance's ability to undergo changes that transform it into different substances. Signup and view all the answers

What is meant by a change in state?

A physical change of a substance from one state to another Signup and view all the answers

Study Notes

Chemistry Overview

Chemistry is the study of matter, including its composition, structure, properties, and the changes it undergoes.

Branches of Chemistry

Organic Chemistry focuses on the study of carbon-containing compounds.

Definition of Chemical

A chemical refers to any substance with a specific composition.

Mass and Volume

Mass measures the amount of matter present in a sample.
Volume is the measurement of the three-dimensional space occupied by an object.

Pure Substances vs. Mixtures

A pure substance consists of either an element or a compound, while a mixture contains multiple substances.

Properties of Substances

Properties are characteristics that can define groups of substances and are crucial for classification.

Utility of Properties

Properties help distinguish between different substances and are essential for classifying unknown materials.

Extensive vs. Intensive Properties

Extensive properties, such as mass and volume, depend on the amount of matter present.
Intensive properties, such as density and boiling point, do not depend on the amount of matter present.

Chemical Properties

A chemical property describes a substance's capacity to undergo transformations into different substances.

Change in State

A change in state refers to a physical change where a substance transitions from one state of matter to another.

Description

Test your knowledge with these flashcards covering key concepts from Chapter 1 of Chemistry. Learn important definitions and fundamental ideas that are essential for understanding the subject. Ideal for students preparing for exams or wanting to reinforce their learning.