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Chemistry > Formulae and balancing equations > Flashcards

Formulae and balancing equations Flashcards

1
Q

What is the chemical formula for water?

A

H2O

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2
Q

True or False: Ionic bonds involve the sharing of electrons.

A

False

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3
Q

What is the charge of a sulfate ion?

A

2-

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4
Q

Fill in the blank: The formula for sodium chloride is ______.

A

NaCl

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5
Q

Which of the following is a diatomic molecule: H2, O2, N2, or all of the above?

A

All of the above

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6
Q

What type of bond is formed between two nonmetals?

A

Covalent bond

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7
Q

What is the formula for carbon dioxide?

A

CO2

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8
Q

True or False: A covalent bond is stronger than an ionic bond.

A

False

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9
Q

What is the empirical formula for glucose (C6H12O6)?

A

CH2O

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10
Q

What is the name of the bond formed between sodium and chlorine?

A

Ionic bond

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11
Q

Fill in the blank: The formula for ammonia is ______.

A

NH3

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12
Q

What is the molecular formula for ethene?

A

C2H4

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13
Q

Which of the following has a triple bond: N2, O2, or H2?

A

N2

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14
Q

True or False: Metallic bonds involve a sea of delocalized electrons.

A

True

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15
Q

What is the formula for calcium carbonate?

A

CaCO3

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16
Q

What type of ion is formed by the loss of an electron?

A

Cation

17
Q

Fill in the blank: The formula for hydrochloric acid is ______.

A

HCl

18
Q

What is the charge of a nitrate ion?

A

1-

19
Q

Which element is usually found in group 1 of the periodic table?

A

Lithium

20
Q

What is the bond angle in a tetrahedral molecule?

A

109.5 degrees

21
Q

True or False: The formula for a compound gives the number of each type of atom present.

A

True

22
Q

What is the chemical formula for sulfuric acid?

A

H2SO4

23
Q

Fill in the blank: The formula for potassium bromide is ______.

A

KBr

24
Q

What type of bond is formed between metals?

A

Metallic bond

25
Q

What is the formula for magnesium oxide?

A

MgO

26
Q

What is the name of the bond formed when electrons are shared equally?

A

Nonpolar covalent bond

27
Q

Which of the following compounds is ionic: NaCl, CO2, or CH4?

A

NaCl

Chemistry (8 decks)

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