Test-Chemical bonds

Question 1

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

Answer 1

False 8 valence electrons

Notes

Question 2

2. Is NaF covalent?

Answer 2

False

Notes

Question 3

3.Is H20 a molecule? True or false?

Answer 3

True

Notes

Question 4

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

Answer 4

do not break up into compounds

Notes

Question 5

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

Answer 5

True

Notes

Question 6

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

Answer 6

Positive ion

Notes

Question 7

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

Answer 7

Sodium sulfide

Notes

Question 8

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

Answer 8

positive ion

Notes

Question 9

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

Answer 9

Yes

Notes

Question 10

15.Name a characteristic property of ionic compounds

Answer 10

They form hard, brittle crystals with characteristic shapes

Didnt learn

Question 11

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

Answer 11

true

Didn’t learn

Question 12

24.Ionic compounds are electrically….

Answer 12

neutral

Notes?

Question 13

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

Answer 13

oppositely charged ions

Notes

Question 14

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

Answer 14

Sodium has a positive charge and chlorine has a negative

Didnt learn

Question 15

30.Are covalent bonds stronger than ionic?

Answer 15

Usually stronger than an ionic bond

Notes

Question 16

32.How are anions formed?

Answer 16

Gaining electrons

Notes

Question 17

34.What is a double bond?

Answer 17

Two pairs of electrons shared between two atoms

Notes

Question 18

35.When is a chemical bind formed?

Answer 18

Covalent bond

Notes

Question 19

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

Answer 19

True

Notes

Question 20

41. True or false? Is this a property of ionic compounds? High melting points?

Answer 20

True

Notes

Question 21

42. Is it true that when electrons are transferred between two atoms, a covalent bond is formed?

Answer 21

False, shared

Notes

Question 22

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

Answer 22

False, negative

Notes

Question 23

48. Chemical bonds are formed when valence electrons are _____ between atoms.

Answer 23

i got it right

Notes

Question 24

52. What is Fe(CO3)2?

Answer 24

Iron (4) carbonate
I should have got the bonus

Notes

Question 25

55. What is P4O6?

Answer 25

tetraphosphurus hexaoidide Naming quiz

Question 26

56. What is N2O?

Answer 26

Dinitrogen monoxide Naming quiz

Question 27

57.What is MgO?

Answer 27

Magnesium Oxide Naming quiz

Question 28

58. What is Be3P2?

Answer 28

Beryllium phosphide Naming quiz

Question 29

60. Write the chemical formula for Triboron heptahydride

Answer 29

B3H7 Naming quiz

Question 30

61. Write the chemical formula for sodium sulfide.

Answer 30

Na2S Naming quiz

Question 31

62. Write the chemical formula for Manganese (3) oxide

Answer 31

Mn2O3 Naming quiz

Question 33

65. Write the chemical formula for tetracarbon decahydride

Answer 33

C9H10 ???? Naming quiz

Question 34

66. Write the chemical formula for beryllium acetate.

Answer 34

Be(C2H3O2)2 Naming quiz

Question 35

71. Why do noble gasses rarely form compounds?

Answer 35

Because they are already stable Notes

Question 36

63. Write the chemical formula for Magnesium sulfate.

Answer 36

Mg2(SO)4 Naming quiz