Test- Chemical Bonding Flashcards

1
Q
  1. Is NaF a covalent bond?
A

No

Nb.26.

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2
Q
  1. Is H2O and example of a molecule?
A

Yes

Nb.3

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3
Q
  1. Molecular compounds do not conduct electricity because they
A

Do not break up into ions.

Nb.3

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4
Q
  1. Out of K, Ca, Kr, Br, which is the one that is most likely to gain electrons in a chemical reaction.
A

Br

Nb.27

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5
Q
  1. What forms hard, brittle crystals with characteristic shapes.
A

Ionic compounds

Nb.15

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6
Q
  1. What is the correct name for the compound between Magnesium and Sulfur?
A

Magnesium Sulfide

Nb.26

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7
Q
  1. A group of covalently bonded atoms that acts together as one charged atom is a
A

Crystal

Nb.6

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8
Q
  1. Electrons involved in the formation of chemical bonds are called
A

Valance electrons

Nb.9

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9
Q
  1. Electrons involved in bonding between atoms are
A

Valance electrons

Nb.9

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10
Q
  1. What is a double bond?
A

Two pairs of electrons shared between two atoms

Nb.20

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11
Q
  1. Magnesium bromide is an ionic compound with the chemical formula MgBr2. What does the “2” tell you?
A

There are two bromide ions for every magnesium ion

Nb.25

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12
Q
  1. How many electrons are shared between the hydrogen atoms in a molecule of H2 gas?
A

2

Nb.25

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13
Q
  1. The properties of a compound are ________

the properties of the elements that form it.l

A

Different from

Nb.10

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14
Q
  1. When ions having a positive charge from bonds with ions having a negative charge, the charge on the resulting compound is
A

Zero

Nb.4

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15
Q
  1. Nitrate (NO3-), ammonium (NH4+), and carbonate( CO32-) are examples of ______ ions
A

Polyatomic

Nb.16

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16
Q
  1. Chemical bonds form when valence electrons are ________ between atoms.
A

Shared

Nb.12

17
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 to form a double bond by sharing 4e- between them.
Nb.19

18
Q
  1. Why do noble gases rarely from compounds?
A

Bc they are already stable

Nb.20

19
Q
  1. What type of bond is formed between Sodium and Chlorine? Explain specifically what will happen to form the bond.
A

Ionic
Na gives it one valence electron e- to Cl— Na+1
Nb. 20