Test - Bonds

Question 1

3. What is an example of a molecule?

Answer 1

H2O

Nb pg 17

Question 2

6 what is an example of atoms that will combine and form and ionic bond!

Answer 2

Ca and Br

Nb pg 23

Question 3

7 What is the name for a compound between phosphorus and chlorine?

Answer 3

Phosphorus

Nb pg 12

Question 4

9 what is the chemical name for the compound with the formula Na2S

Answer 4

Sodium sulfide

Nb pg 12

Question 5

11 when an atom loses an electron p, it becomes..

Answer 5

Positive ion

Nb pg 14

Question 6

12 what will the element Br most likely gain in a chemical reaction?

Answer 6

Electrons

Nb pg 12

Question 7

16 what is the probability that K will bond with chlorine?

Answer 7

Most likely

Nb pg 15

Question 8

19what is the correct name for a compound between magnesium and sulfur?

Answer 8

Magnesium sulfide

Nb pg 18

Question 9

20 atoms become positive ions by

Answer 9

Losing electrons

Nb pg 19

Question 10

21a group of covalently bond atoms that act together as one charge is a

Answer 10

Crystal

Nb pg 20

Question 11

22 how does an atom of aluminum become an ion

Answer 11

It loses 3 electrons

Nb pg 18

Question 12

23 which is a property shared by most molecular compounds

Answer 12

A low melting point

Nb pg 23

Question 13

24 ionic compounds are electrically

Answer 13

Neutral

Nb pg 12

Question 14

25 electrons involved in the formation of chemical bonds are called

Answer 14

Valence electrons

Nb pg 18

Question 15

37 what is an example of an atom that doesn’t lose electrons

Answer 15

Argon

Nb pg 12

Question 16

39 how many electrons are being shared in a triple bond?

Answer 16

6

Nb pg 16

Question 17

40Are properties of a compound different from the compounds that form it?

Answer 17

Yes

Nb pg 14

Question 18

43 true or false: when an atom gains an electron it becomes a positive ion

Answer 18

False, negative ion

Nb pg 20

Question 19

48when do chemical bonds form?

Answer 19

When valence electrons are transferred/shared

Nb pg 14

Question 20

49 what bonds usually formed by nonmetals?

Answer 20

Covalent bonds

Nb pg 7

Question 21

50 how many electrons are shared between two atoms in a double covalent bond

Answer 21

Four pairs of two

Nb pg 12

Question 22

52. Fe(CO3)2

Answer 22

Iron (IV) carbonate

nb pg 13

Question 23

54 Sr(ClO3)2

Answer 23

Strontium chloride

Nb pg 18

Question 24

58 Be3P2

Answer 24

Beryllium Phosphide

Nb pg 18

Question 25

61 Sodium Sulfide

Answer 25

Na2S Nb pg 18

Question 26

62 Manganese(III) oxide

Answer 26

Mn2O3 Nb pg 18

Question 27

63 magnesium sulfate

Answer 27

Mg2(SO4) Nb pg 18

Question 28

66 beryllium acetate

Answer 28

Be(C2H3O2)2 Nb pg 18

Question 29

68 what type of bond is formed between two oxygen atoms?

Answer 29

Covalent 2 oxygen atoms form a double bond by sharing Re- between them Nb pg 20

Question 30

70 what type of bond is formed between sodium and chlorine?

Answer 30

Ionic Na gives its 1 valence e- to Cl — Ne + 1 Nb pg 21