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CHEMISTRY > Inorganic - Period 3 & Oxides > Flashcards

Inorganic - Period 3 & Oxides Flashcards

1
Q

What is the structure and bonding of sodium?

A

Metallic

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2
Q

What is the observation when sodium reacts with water?

A
  • Floats and moves on water
  • Fizzes and may catch fire with a yellow orange flame.
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3
Q

What is the equation of sodium and water?

A

2Na + 2H2O -> 2NaOH + H2

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4
Q

What is the observation when sodium reacts with oxygen?

A

Burns with yellow orange flame to produce white powder.

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5
Q

What is the equation for the reaction between sodium and oxygen?

A

4Na + O2 -> 2Na2O

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6
Q

What is the melting point of magnesium?

A

650

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7
Q

What is the structure and bonding in magnesium?

A

Metallic

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8
Q

What is the observations when magnesium reacts with water?

A

Steam = burns with a white flame giving a white powdery

Water = very slow reaction

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9
Q

What is the equation for the reaction of magnesium and water?

A

Mg + H2O -> Mg(OH)2 + H2

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10
Q

What is the equation for the reaction of magnesium and steam?

A

Mg + H2O -> MgO + H2

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11
Q

What is the observations for the reaction of magnesium and oxygen?

A

Burns with a white flame to produce a white powder

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12
Q

What is the equation for the reaction of magnesium and oxygen?

A

2Mg + O2 -> 2MgO

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13
Q

What is the melting point of aluminium?

A

660

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14
Q

What is the structure and bonding of aluminium?

A

Metallic

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15
Q

Does aluminium react with water?

A

No

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16
Q

What are the observations when aluminium reacts with oxygen?

A

Burns with white flame to produce a white powder

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17
Q

What is the equation when aluminium reacts with oxygen?

A

4Al + 3O2 -> 2Al2O3

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18
Q

What is the melting point of silicon?

A

1414

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19
Q

What is the structure and bonding of silicon?

A

Giant covalent

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20
Q

Does silicon react with water?

A

No

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21
Q

What are the observations when silicon reacts with oxygen?

A

Burns with white flame to produce a white powder

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22
Q

What is the equation for the reaction of silicon and oxygen?

A

Si + O2 -> SiO2

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23
Q

What is the melting point of phosphorus?

A

44

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24
Q

What is the structure and bonding of phosphorus?

A

Molecular

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25
Q

Does phosphorus react with water?

A

No

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26
Q

What are the observations when phosphorus reacts with oxygen?

A

Burns with very bright white flame to produce white powder.

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27
Q

What is the equation when phosphorus reacts with oxygen?

A

P4 + 5O2 -> P4O10

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28
Q

What is the melting point of sulfur?

A
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29
Q

What is the melting point of sulfur?

A

95

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30
Q

What is the structure and bonding in sulfur?

A

Molecular

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31
Q

Does sulfur react with water?

A

No

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32
Q

What are the observations when sulfur reacts with oxygen?

A

Burns with blue flame and gives off chocking gas.

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33
Q

What is the equation for when sulfur reacts with oxygen?

A

S + O2 -> SO2

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34
Q

What is the melting point of chlorine?

A

-102

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35
Q

What is the structure and bonding in chlorine?

A

Molecular

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36
Q

What are the observations when sulfur reacts with water?

A

Dissolves giving very pale green solution

37
Q

What is the equation for the reaction between chlorine and water?

A

Cl + H2O ⇌ HCl + HClO

38
Q

Does chlorine react with oxygen?

A

No

39
Q

What is the melting point of sodium oxide (Na2O)?

A

1275 (solid)

40
Q

What is the structure of Na2O?

A

Ionic

41
Q

What happens when Na2O reacts with water?

A

It dissolves

42
Q

What is the equation for the reaction of sodium oxide and water?

A

Na2O + H2O -> 2NaOH (aq)

The Na+ and O2- ions dissolves in water and then the O2- ions react with water.

43
Q

What is the pH of the reaction between sodium oxide and water?

A

14

44
Q

What is the equation for the reaction between sodium oxide and an acid?

A

Na2O + 2H+ -> 2Na+ + H2O

45
Q

Does sodium oxide react with alkalis?

A

No

46
Q

What is the nature of sodium oxide?

A

Basic

47
Q

What is the melting point of magnesium oxide (MgO)?

A

2900 (solid)

48
Q

What happens when MgO reacts with water?

A

Slightly soluble

49
Q

What is the equation for the reaction between MgO and water?

A

MgO + H2O -> Mg(OH)2 (aq)

Some Mg2+ and O2- ions dissolve in water.

50
Q

What is the pH of the solution formed when MgO and water react?

A

10

51
Q

What is the equation of MgO with an acid?

A

MgO + 2H+ -> Mg2+ + H2O

52
Q

Does magnesium oxide react with alkalis?

A

No

53
Q

What is the nature of magnesium oxide?

A

Basic

54
Q

What is the melting point of aluminium oxide (Al2O3)?

A

2040 (solid)

55
Q

What is the structure of Al2O3?

A

Ionic

56
Q

What happens in a reaction between Al2O3 and water?

A

Aluminium oxide is insoluble due to very high lattice enthalpy. So no reaction takes place.

57
Q

What is the equation for the reaction between aluminium oxide and acids?

A

Al2O3 + 6H+ -> 2Al3+ + 3H2O

58
Q

What is the reaction between aluminium oxide and alkalis?

A

Al2O3 + 2OH- + 3H2O -> 2Al(OH)4

59
Q

What is the nature of aluminium oxide?

A

Amphoteric (acid and base)

60
Q

What is the melting point of silicon oxide (SiO2)?

A

1610 (solid)

61
Q

What is the structure of SiO2?

A

Giant covalent

62
Q

What happens in a reaction between silicon oxide and water?

A

Insoluble due to lattice of atoms linked by strong covalent bonds. No reaction occurs.

63
Q

Does silicon oxide react with acid?

A

No

64
Q

What is the equation for the reaction between silicon oxide and alkalis?

A

SiO2 + 2OH- -> SiO32- + H2O

65
Q

What is the nature of silicon oxide?

A

Acidic

66
Q

What is the melting point of phosphorus oxide (P4O10)?

A

580 (solid)

67
Q

What is the structure of P4O10?

A

Simple molecular

68
Q

What happens when P4O10 reacts with water?

A

It reacts violently

69
Q

What is the equation for the reaction between phosphorus oxide and water?

A

P4O10 + 6H2O -> 4H3PO4

H2O molecules attach the P atoms leading to the release of H+ ions from the water molecules

70
Q

What is the pH of the solution formed when phosphorus oxide reacts with water?

A

0

71
Q

Does P4O10 react with acids?

A

No

72
Q

What is the equation for the reaction between phosphorus oxide and alkalis?

A

P4O10 + 12OH- -> 4PO43- + 6H2O

73
Q

What is the nature of phosphorus oxide?

A

Acidic

74
Q

What is the melting point of SO2?

A

-75 (gas)

75
Q

What is the structure of SO2?

A

Simple molecular

76
Q

What happens when SO2 reacts with water?

A

It dissolves

77
Q

What is the equation for the reaction between SO2 and water?

A

SO2 + H2O -> H2SO3

H2O molecules attach the S atoms, leading to the release of H+ ions from the water molecule.

78
Q

What is the pH of the solution formed when SO2 reacts with water?

A

3

79
Q

Does SO2 react with acids?

A

No

80
Q

What is the equation for the reaction between SO2 and alkalis?

A

SO2 + 2OH- -> SO32- + H2O

81
Q

What is the nature of SO2?

A

Acidic

82
Q

What is the melting point of SO3?

A

17

83
Q

What is the structure of SO3?

A

Simple molecular

84
Q

What happens when SO3 reacts with water?

A

Reacts violently

85
Q

What is the equation for the reaction between SO3 and water?

A

SO3 + H2O -> H2SO4

H2O molecules attach the S atoms, leading to the release of H+ ions from the water molecules.

86
Q

What is the pH of the solution formed when SO3 and water react?

A

0

87
Q

Does SO3 react with acids?

A

No

88
Q

What is the equation for the reaction between SO3 and alkalis?

A

SO3 + 2OH- -> SO42- + H2O

89
Q

What is the nature of SO3?

A

Acidic

CHEMISTRY (34 decks)

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