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6th Caddell_Cole PS > Test - Chemical Bonding > Flashcards

Test - Chemical Bonding Flashcards

1
Q

Which of the following is a molecule

a. Mg3N2
b. H2O
c. NaF

A

b Nb pg22

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2
Q
  1. Molecular compounds do not conduct electricity because they
A

Do not break up into ions Nb pg22

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3
Q
  1. Which pair of atoms will combine with each other and form an ionic bonds
A

Ca and Br Nb pg23

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4
Q
  1. Which of the following is the correct name for a compound between Phosphorus and Chlorine
A

Phosphorus trichloride Nb pg19

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5
Q
  1. In the chemical formula for an ionic compound, which item is written
A

Positive ion Nb pg23

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6
Q
  1. What is the chemical name for the compound with the formula name Na2S
A

Sodium sulfide Nb pg19

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7
Q
  1. When an atom loses an electron, it becomes a
A

Positive ion Nb pg4

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8
Q
  1. Which of the following is a similarity between ionic and covalent bonds
A

Bath make the elements more stable Nb pg23

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9
Q
  1. Which of the following is a characteristic property of ionic compounds
A

They form hard, brittle crystals with characteristic shapes Nb pg23

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10
Q
  1. Atoms become positive ions by
A

Losing electron Nb pg4

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11
Q
  1. How does an atom of aluminum become an ion
A

It loses 3 electrons Nb pg9

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12
Q
  1. Which is a property shared by most molecular compounds
A

Low melting point Nb pg23

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13
Q
  1. Electrons involved in the formation of chemical bonds are called
A

Valence electrons Nb pg2

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14
Q
  1. An ionic bond is the attraction between
A

Oppositely charged ions Nb pg3

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15
Q
  1. Ions that are made of more than one atom are examples of
A

Polyatomic ions Nb pg3

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16
Q
  1. Anions are formed by
A

Gaining electrons Nb pg3

17
Q
  1. What is a double bond
A

Two pairs of electrons shared between two atoms Nb pg3

18
Q
  1. Magnesium bromide is an ionic bond with the chemical formula MgBr2. What does the 2 tell you
A

There are two bromide ions for every one magnesium ion Nb pg17

19
Q
  1. The properties of a compound are _________ the properties of the elements that form it
A

Different from Nb pg11

20
Q
  1. When an atom gains an electron it becomes a positive ion
A

False, negative Nb pg3

21
Q
  1. The attraction between a positive ion and a negative ion results in a covalent bond
A

False, an ionic Nb pg3

22
Q
  1. When ions having a positive charge form bonds with ions having negative charge, the charge on the resulting compound is
A

zero Nb pg3

23
Q
  1. When an ionic compound forms, the total number of positive charges and the total number of negative charges must be
A

Equal Nb pg3

24
Q
  1. Chemical bonds form when valence electrons are ___________ between atoms
A

Transferred/ shared Nb pg4

25
Q
  1. Bonds that form between two nonmetals atoms usually are ________ bonds
A

Covalent Nb pg23

26
Q
  1. In a double covalent bond, _______ electrons are shared between two atoms
A

Four two pairs of Nb pg3

27
Q
  1. Fe(CO3)2
A

Iron (IV) Carbonate Nb pg19

28
Q
  1. Be3P2
A

Beryllium phosphide Nb pg19

29
Q
  1. Ammonium fluoride
A

(NH4)F Nb pg19

30
Q
  1. Manganese (III) oxide
A

Mn2O3 Nb pg19

31
Q
  1. Magnesium sulfate
A

Na2(SO4) Nb pg19

32
Q
  1. Lead (II) chloride
A

PbCL2 Nb pg19

33
Q
  1. Beryllium acetate
A

Be(C2H3O2)2 Nb pg19

34
Q
  1. What type of bond is formed between two Oxygen atoms? Explain specifically what will happen to form the bond.
A

Covalent 2 oxygen atoms form a double bond by sharing 4e- between them Nb pg3

35
Q
  1. What type of bond is formed between Sodium and Chlorine? Explain specifically what will happen to form the bond
A

Na gives its 1 valence e- to Cl — Na +1

Cl accepts 1 valence e- to go w/ the 7 it already has —- Cl - 1
Nb pg3

36
Q
  1. Why do noble gases rarely form compounds
A

Because they aren’t stable Nb pg2

6th Caddell_Cole PS (8 decks)

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