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CHAPTER 3_An Atomic View of Matter

Created by Tristan Derma

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What is one of the key postulates of Dalton's Atomic Theory?

A. Atoms are visible to the naked eye
B. Matter is made up of extremely small particles called atoms
C. All atoms of an element are different
D. Compounds can be formed in any ratio
E. Atoms can be created or destroyed

Select an answer

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Explanation

One of the fundamental postulates of Dalton's Atomic Theory states that matter is made up of extremely small invisible particles called atoms, which is essential to understanding the nature of matter.

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Dalton's Atomic Theory

What is one of the key postulates of Dalton's Atomic Theory?

B

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Fundamental Laws of Chemistry

What does the Law of Definite Proportion state?

C

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Isotopes and Their Applications

Which of the following best describes isotopes?

A

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Atomic Mass and Mass Number

What is the difference between atomic number and mass number?

C

p.1
Dalton's Atomic Theory

Which of the following is NOT a postulate of Dalton's Atomic Theory?

D

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Subatomic Particles: Electrons, Protons, Neutrons

Who discovered the electron in 1897?

D

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Subatomic Particles: Electrons, Protons, Neutrons

What did Rutherford conclude from his gold-foil experiment?

E

p.2
Subatomic Particles: Electrons, Protons, Neutrons

What is the charge of a proton?

D

p.2
Historical Contributions to Atomic Theory

What model did Thomson propose for the atom?

A

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Atomic Mass and Mass Number

What determines the mass of an atom?

C

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Atomic Mass and Mass Number

What does the atomic number represent in an atom?

B

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Atomic Mass and Mass Number

How is the mass number calculated?

B

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Isotopes and Their Applications

What is true about isotopes of the same element?

A

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Isotopes and Their Applications

Which isotope of carbon is used for carbon dating?

A

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Naming Compounds: Ionic and Molecular

What is a compound?

C

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Naming Compounds: Ionic and Molecular

What forms ionic compounds?

B

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Naming Compounds: Ionic and Molecular

What is the correct name for the compound NaBr?

A

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Naming Compounds: Ionic and Molecular

What does the crisscross rule help determine?

D

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Naming Compounds: Ionic and Molecular

In the classical naming system, how is the ion with the lower charge named?

E

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Naming Compounds: Ionic and Molecular

What is the oxidation number used for?

A

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Naming Compounds: Ionic and Molecular

What is the naming convention for ionic compounds involving a transition metal and a polyatomic ion?

E

p.5
Naming Compounds: Ionic and Molecular

What is the correct formula for magnesium hydroxide?

B

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Acids and Their Naming Conventions

How do you name a binary acid?

D

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Naming Compounds: Ionic and Molecular

What is the formula for dinitrogen trioxide?

E

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Naming Compounds: Ionic and Molecular

What is the name of the compound with the formula Fe₂(SO₄)₃?

E

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Naming Compounds: Ionic and Molecular

What is the naming convention for oxyacids derived from polyatomic ions ending in '-ate'?

D

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Naming Compounds: Ionic and Molecular

What is the correct name for the acid with the formula H₂SO₄?

E

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Naming Compounds: Ionic and Molecular

Which of the following acids is named 'nitrous acid'?

C

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Naming Compounds: Ionic and Molecular

What is the relationship between the suffixes '-ite' and '-ous' in naming acids?

B

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Naming Compounds: Ionic and Molecular

What is the name of the acid H₂CO₃?

C

Study Smarter, Not Harder
Study Smarter, Not Harder