Reducing Agent Quiz and Flashcards

Questions and Answers

What is chemistry?

The study of organic substances

The science that deals with the composition, structures, and properties of matter (correct)

The science of matter's physical properties

None of the above

What does organic chemistry study?

Substances containing carbon (correct)

Substances that do not contain carbon

The chemical properties of water

None of the above

Inorganic chemistry is the study of substances containing carbon.

False

What is matter?

Any substance that occupies space and has mass. Signup and view all the answers

What is an element?

The simplest form of chemical matter. Signup and view all the answers

What are atoms?

The smallest chemical components of an element. Signup and view all the answers

What is a molecule?

A chemical combination of two or more atoms in fixed proportions. Signup and view all the answers

What is an elemental molecule?

A molecule containing two or more atoms of the same element. Signup and view all the answers

What are compound molecules?

A chemical combination of two or more atoms of different elements. Signup and view all the answers

What are the states of matter?

Solid, liquid, gas Signup and view all the answers

Physical properties can be determined with a chemical reaction.

False Signup and view all the answers

Chemical properties can only be determined through a chemical reaction.

True Signup and view all the answers

What is a physical change?

A change in the form or physical properties of a substance without creating a new substance. Signup and view all the answers

What is a chemical change?

A change in the chemical composition or make-up of a substance. Signup and view all the answers

An example of a chemical change is the __________ of hair color.

oxidation Signup and view all the answers

What is oxidation-reduction (redox)?

A chemical reaction where the oxidizing agent is reduced and the reducing agent is oxidized. Signup and view all the answers

What is an oxidizing agent?

A substance that releases oxygen. Signup and view all the answers

What is a reducing agent?

A substance that adds hydrogen to a compound or removes oxygen from it. Signup and view all the answers

What is reduction?

The process through which oxygen is subtracted from or hydrogen is added to a substance. Signup and view all the answers

Under what conditions can chemical reactions release a significant amount of heat?

Exothermic reactions Signup and view all the answers

What is combustion?

The rapid oxidation of a substance, producing heat and light. Signup and view all the answers

What is a pure substance?

A chemical combination of matter in definite proportions. Signup and view all the answers

What is a physical mixture?

A physical combination of matter in any proportions. Signup and view all the answers

What is a solution?

A stable physical mixture of two or more substances. Signup and view all the answers

What is a solute?

The substance that is dissolved into the solution. Signup and view all the answers

What is a solvent?

The substance that dissolves the solute to make the solution. Signup and view all the answers

Study Notes

Chemistry Basics

Chemistry is the science of matter's composition, structure, properties, and behavior under various conditions.
Organic chemistry focuses on substances containing carbon.
Inorganic chemistry studies substances that do not contain carbon but may include hydrogen.

Matter and Its Forms

Matter is any substance that occupies space and has mass.
An element is the simplest chemical matter that cannot be simplified without losing identity.
Atoms are the smallest units of an element and cannot be divided into simpler substances through ordinary chemical means.
Molecules are combinations of two or more atoms in fixed proportions.

Types of Molecules

An elemental molecule consists of two or more atoms of the same element.
Compound molecules (or compounds) are combinations of atoms from different elements in fixed proportions.

States and Properties of Matter

Matter exists in three physical states: solid, liquid, and gas.
Physical properties can be assessed without chemical reactions, while chemical properties require a chemical change.
A physical change alters the form or properties of a substance without creating a new one; a chemical change involves a change in composition.

Chemical Changes and Reactions

Oxidation is a type of chemical change, such as altering hair color.
Oxidation-reduction (redox) involves reactions where oxidizing agents lose oxygen and reducing agents gain it.
An oxidizing agent releases oxygen; hydrogen peroxide is an example.
A reducing agent adds hydrogen to a substance or removes oxygen.

Reactions and Mixtures

Reduction is a reaction process where oxygen is removed or hydrogen is added.
Exothermic reactions release heat during chemical processes.
Combustion is a rapid oxidation reaction producing heat and light, such as lighting a match.
A pure substance is a chemical combination with fixed proportions, while a physical mixture combines substances in any ratio, retaining their individual properties.

Solutions

A solution is a stable mixture of two or more substances.
The solute is the substance being dissolved, while the solvent is the substance that dissolves the solute to form a solution.

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Description

Explore the fundamental concepts of chemistry with this quiz based on Milady's Chapter 12. Test your knowledge of essential topics such as organic and inorganic chemistry, and understand the properties of matter. Ideal for students preparing for exams in beauty and wellness fields.

Milady Chapter 12: Basics of Chemistry