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VOCABULARY I VOCABULARY IIATOMIC MODELS

& COMPOUNDS

What is a pure substance made of only one kind of atom?

a. compound c. molecule

b. atom d. element

Vocabulary I for $100

d. element

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Vocabulary I for $100

What is the smallest unit of a compound?

a. compound c. molecule

b. atom d. element

Vocabulary I for $200

c. molecule

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Vocabulary I for $300

What is a pure substance made of two or more kinds of atoms that are chemically bonded together?

a. compound c. molecule

b. atom d. element

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Vocabulary I for $300

a. compound

What is the smallest piece that an element can be divided into and still be the same substance?

a. compound c. molecule

b. atom d. element

Vocabulary I for $400

Vocabulary I for $400

b. atom

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Vocabulary I for $500

What is a substance made of two or more kind of atoms or compounds that can be

seperated without chemical changes?

a. solution c. mixture

b. atom d. element

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c. mixture

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What is the letter or letters that represent an element in the Periodic Table?

a. chemical formula b. chemical equation

c. chemical symbol d. chemical bond

Vocabulary II for $100

Vocabulary II for $100

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c. chemical symbol

What is the set of letters that represent a compound? It shows how many of each type of atom that makes up one molecule.

a. chemical formula b. chemical equation

c. chemical symbol d. chemical bond

Vocabulary II for $200

Vocabulary II for $200

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a. chemical formula

What is the chemical equation that

shows how a chemical reaction works?

Vocabulary II for $300

a. chemical formula b. chemical equation

c. chemical symbol d. chemical bond

b. chemical equation

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What is the connection that holds together the atoms in a compound?

a. chemical formula b. chemical equation

c. chemical symbol d. chemical bond

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d. chemical bond

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Vocabulary II for $500

What is the difference between an element and a compound?

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An element is a pure substance that CANNOT BE BROKEN DOWN into simpler substances. ex. H (hydrogen)

A compound is a pure substance made of two or more elements that are chemically bonded. It CAN BE BROKEN DOWN into simpler substances through chemical changes.

ex. H2O (water)

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Vocabulary III for $100

The chemical formula for water is H20. How many of each kind of atom make up water?

Homophones VIII for $100

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two hydrogens atoms one oxygen atom

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The chemical formula for Carbazole is C12H9N.

How many of each kind of atom make up carbazole?

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Vocabulary III for $200

12 carbon atoms9 Hydrogen atoms1 nitrogen atom

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Boron has an atomic number of 5 and an atomic mass of 11.

How many protons does it have? _____

How many electrons does it have? ____

How many neutrons does it have? _____

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Vocabulary III for $300

BORON Atomic Number = 5 Atomic Mass = 11

The number of protons is equal to the atomic number, so Boron has 5 protons.

The number of electrons is equal to the number of protons (in unionized state). So Boron has 5 electrons.

The number of neutrons is equal to the atomic mass minus the electrons. 11 - 5 = 6 So Boron has 6 neutrons.

Vocabulary III for $400

Fluorine has an atomic number of 9 and an atomic mass of 19.

How many protons does it have? _____

How many electrons does it have? ____

How many neutrons does it have? _____

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Vocabulary III for $400

FLUORINE Atomic Number = 9 Atomic Mass = 19

The number of protons is equal to the atomic number, so Boron has 9 protons.

The number of electrons is equal to the number of protons (in unionized state). So Boron has 9 electrons.

The number of neutrons is equal to the atomic mass minus the electrons. 19 - 9 = 10 So Boron has 10 neutrons.

Vocabulary III for $500

Draw a model of carbon dioxide. CO2 element chemical symbol # of bonds

oxygen O 2

carbon C 4

element chemical symbol # of bonds

oxygen O 2

carbon C 4

O=C=O

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