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Molecular Formulas and Substances

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Questions and Answers

What is a molecule composed of?

Groups of atoms that are not alike

Substances that are not tightly connected

Atoms that are chemically bonded together (correct)

Elements that are not chemically bonded

What is a characteristic of a molecular substance?

It is composed of elements that are not tightly connected

It is composed of different types of molecules

It is composed of molecules all of which are alike (correct)

It is composed of atoms that are not chemically bonded

What information does a molecular formula provide?

The type of bonds in a molecule

The number of molecules in a substance

The exact number of different atoms of an element in a molecule (correct)

The type of elements in a molecule

How many oxygen atoms are in a molecule of hydrogen peroxide?

<p>Two</p> Signup and view all the answers

What is the molecular formula for hydrogen peroxide?

<p>H2O2</p> Signup and view all the answers

Study Notes

Molecular Structure

A molecule is a group of atoms that are chemically bonded together, tightly connected by attractive forces.

Molecular Substances

A molecular substance is a substance composed of molecules that are all alike.

Molecular Formula

A molecular formula gives the exact number of different atoms of an element in a molecule.
The molecular formula for hydrogen peroxide is H2O2, which indicates that the molecule contains two hydrogen atoms and two oxygen atoms chemically bonded.

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Description

Learn about molecules, molecular substances, and molecular formulas. Understand how to determine the molecular formula of a substance, like hydrogen peroxide.