Topic 3.3 Chemical Properties

Question 1

Define molecular covalent

Answer 1

only covalent when existing as molecules

Question 2

What is the oxide of Na?

Answer 2

Na₂O

Question 3

Alkali metals’ reaction with water is through the ________ reaction.

Answer 3

displacement

Question 4

Reactivity of an alkali increases (down/up) a group

Answer 4

down

Question 5

How does sulfur oxide conduct electricity in MOLTEN (liquid) state?

Answer 5

none

Question 6

Charge of Al?

Answer 6

+3

Question 7

Complete the reaction:

SO3(l) + H2O(l) -> _______________

Answer 7

H₂SO₄(aq)

(sulphuric acid)

Question 8

Oxide of phosphorus

Answer 8

P₄O10

Question 9

Amphoterics act as a(n) _________ when reacted with an acid.

Answer 9

base

Question 10

Complete the Reaction:

MgO(s) + H₂O(l) -> _______________

Answer 10

Mg(OH)₂(aq)

Question 11

Charge on Na?

Answer 11

+1

Question 12

Acidic/Basic Character of Na₂O

Answer 12

Very basic

Question 13

Structure of chlorine oxide?

Answer 13

Molecular covalent

Question 14

How does SiO₂ conduct electricity in MOLTEN (liquid) state?

Answer 14

very LOW

Question 15

Define monotomic

Answer 15

Monotomic: exist as SINGLE atoms.

Mono-> single

Question 16

What does alkali mean?

Answer 16

basic

Question 17

Alkali metals are found where in nature?

Answer 17

Trick question,

they’re too reactive to occur naturally (use electrolysis to obtain them)

Question 18

Electronegavity increases across a period from ________ to ________? (element names)

Answer 18

From Na to Cl₂

Question 19

Metallic nature of P (Phosphorus)

Answer 19

Nonmetal

Question 20

Charge of S?

Answer 20

+6/+4

Question 21

All oxides are found to be solid except in ______, ________, and ________.

Answer 21

S and Cl and P

Question 22

Metallic nature of Na?

Answer 22

Metal

Question 23

Structure of Silicon Oxide

Answer 23

Giant covalent

Question 24

How does MgO conduct electricity in MOLTEN (liquid) state?

Answer 24

High

Question 25

Complete the reaction: Na₂O(s) + H₂O(l) -\> \_\_\_\_\_\_\_\_\_(\_\_)

Answer 25

2NaOH(aq)

Question 26

Halogens and alkaline metals form ______ through the reaction of \_\_\_\_\_\_\_\_

Answer 26

Halides, displacement

Question 27

Structure of MgO

Answer 27

GIant ionic

Question 28

Amphoteric oxides act as a(n) ______ when reacted with a base.

Answer 28

acid

Question 29

Metallic nature of Si?

Answer 29

Metalloid

Question 30

Why are Noble gases so unreactive? (3 reasons)

Answer 30

Because they're uppity jerks. * stable octent in e^- arrangement (don't gain electron) * don't form ions (gain/lose) * uber high ionization energy (don't lose electron)

Question 31

How does Al₂O₃ conduct electricity in MOLTEN (liquid) state?

Answer 31

High

Question 32

Oxide of sulfur

Answer 32

SO₃

Question 33

Acidic/basic characteristic of sulfur oxide

Answer 33

acidic

Question 34

Structure of Al₂O₃

Answer 34

Giant Ionic

Question 35

where are Alkali metals stored and why?

Answer 35

In oil to isolate them from air and water

Question 36

Structure of phosphorus oxide

Answer 36

Molecular covalent

Question 37

Acidic/Basic character of Aluminum Oxide (Al₂O₃)

Answer 37

Amphoteric (act as acid or base)

Question 38

How does chlorine oxide conduct electricity in MOLTEN state?

Answer 38

none

Question 39

Structure of silicon oxide

Answer 39

molecular covalent

Question 40

Charge of Si?

Answer 40

+4

Question 41

Charge of Cl₂?

Answer 41

+7/+1

Question 42

Acidic/basic character of silicon oxide

Answer 42

amphoteric (meaning?)

Question 43

_Chemical Properties of Alkali Metals:_ * ? * ? * ? * ?

Answer 43

_Chemical Properties of Alkali Metals:_ * Extremely reactive * ionic bonds with nonmetals * form metals⁺ * low ionization energy (that's why they give up their electron so quickly)

Question 44

Oxide of Mg?

Answer 44

MgO

Question 45

Reactivity of Halogens' increases as you go (down/up) the group

Answer 45

up

Question 46

_Chemical Properties of Halogens_: * ? * ? * ? * ?

Answer 46

_Chemical Properties of Halogens_: * very reactive with nonmetals * form ionic bonds with metals * high effective charge (because many protons) * one electron fills their whole octet

Question 47

Oxide of Aluminum

Answer 47

Al₂O3

Question 48

Metallic nature of Sulfur

Answer 48

nonmetal

Question 49

Charge of Mg?

Answer 49

+2

Question 50

acidic/basic character of chlorine oxide

Answer 50

acidic

Question 51

Metallic nature of Mg?

Answer 51

Metal

Question 52

How does phosphorus oxide conduct electricity in MOLTEN (liquid) state?

Answer 52

none

Question 53

Acidic/Basic characteristic of Phosphorus oxide

Answer 53

acidic

Question 54

_Physical Properties of Alkali Metals:_ * \_\_\_\_\_\_\_\_\_\_\_\_\_\_ * \_\_\_\_\_\_\_\_\_\_\_\_\_\_ * \_\_\_\_\_\_\_\_\_\_\_\_\_\_

Answer 54

_Physical Properties of Alkali Metals:_ * good conductors of electricity * low density * shiny surfaces when sliced

Question 55

define giant covalent

Answer 55

repeated covalent bonds

Question 56

Charge of P?

Answer 56

+5/+3

Question 57

_Physical Properties of Halogens:_ * ? * ?

Answer 57

_Physical Properties of Halogens:_ * colurful * turn from gas -\> liquid -\> solid as you go down the group

Question 58

Metallic nature of Cl₂

Answer 58

nonmetal

Question 59

Acidic/Basic character of MgO

Answer 59

basic

Question 60

Structure of Na₂O

Answer 60

Giant Ionic Structure

Question 61

Metallic nature of Al?

Answer 61

Metal

Question 62

Oxide(s) of Chlorine?

Answer 62

Cl₂O7 (g) Cl2O (g)

Question 63

How does Na₂O conduct electricity in MOLTEN (liquid) state?

Answer 63

High level

Question 64

_Properties of Noble Gases_ * \_\_\_\_\_\_\_\_\_\_ * \_\_\_\_\_\_\_\_\_\_ * \_\_\_\_\_\_\_\_\_\_

Answer 64

_Properties of Noble Gases_ * colorless gases * monotomic * unreactive