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2nd Freeman_Mac PS > Test-Chemical bonds > Flashcards

Test-Chemical bonds Flashcards

1
Q

1.If atoms of a halogen nonmetal gain one electron, the atoms then have 1 electron. True or false?

A

False 8 valence electrons

Notes

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2
Q
  1. Is NaF covalent?
A

False

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3
Q

3.Is H20 a molecule? True or false?

A

True

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4
Q

5.Molecular compound do not conduct electricity because they….

A

do not break up into compounds

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5
Q

6.Will Ca and Br, combine with each other and form an ionic bond?

A

True

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6
Q

8.In the chemical formula for an ionic compound, what item is written first?

A

Positive ion

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7
Q

9.what is the chemical name for the compound with rhe formula Na2S?

A

Sodium sulfide

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8
Q

11.When an atom loses an electron it becomes a…

A

positive ion

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9
Q

12.Is Br likely to gain electrons in a chemical reaction?

A

Yes

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10
Q

15.Name a characteristic property of ionic compounds

A

They form hard, brittle crystals with characteristic shapes

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11
Q

23.Do molecular compounds have low melting points? True or false?

A

true

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12
Q

24.Ionic compounds are electrically….

A

neutral

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13
Q

26.An ionic bond is the attraction between?..

A

oppositely charged ions

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14
Q

27.Why do sodium and chlorine attract each-other in a salt crystal?

A

Sodium has a positive charge and chlorine has a negative

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15
Q

30.Are covalent bonds stronger than ionic?

A

Usually stronger than an ionic bond

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16
Q

32.How are anions formed?

A

Gaining electrons

Notes

17
Q

34.What is a double bond?

A

Two pairs of electrons shared between two atoms

Notes

18
Q

35.When is a chemical bind formed?

A

Covalent bond

Notes

19
Q
  1. “The properties of a compound are different than the properties of the elements that form it” True or false?
A

True

Notes

20
Q
  1. True or false? Is this a property of ionic compounds? High melting points?
A

True

Notes

21
Q
  1. Is it true that when electrons are transferred between two atoms, a covalent bond is formed?
A

False, shared

Notes

22
Q

43.True or false? When an atom gains an electron it becomes a positive ion.

A

False, negative

Notes

23
Q
  1. Chemical bonds are formed when valence electrons are _____ between atoms.
A

i got it right

Notes

24
Q
  1. What is Fe(CO3)2?
A

Iron (4) carbonate
I should have got the bonus

Notes

25
Q
  1. What is P4O6?
A

tetraphosphurus hexaoidide

Naming quiz

26
Q
  1. What is N2O?
A

Dinitrogen monoxide

Naming quiz

27
Q

57.What is MgO?

A

Magnesium Oxide

Naming quiz

28
Q
  1. What is Be3P2?
A

Beryllium phosphide

Naming quiz

29
Q
  1. Write the chemical formula for Triboron heptahydride
A

B3H7

Naming quiz

30
Q
  1. Write the chemical formula for sodium sulfide.
A

Na2S

Naming quiz

31
Q
  1. Write the chemical formula for Manganese (3) oxide
A

Mn2O3

Naming quiz

33
Q
  1. Write the chemical formula for tetracarbon decahydride
A

C9H10
????

Naming quiz

34
Q
  1. Write the chemical formula for beryllium acetate.
A

Be(C2H3O2)2

Naming quiz

35
Q
  1. Why do noble gasses rarely form compounds?
A

Because they are already stable

Notes

36
Q
  1. Write the chemical formula for Magnesium sulfate.
A

Mg2(SO)4

Naming quiz

2nd Freeman_Mac PS (8 decks)

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