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Inorganic - Period 3 & Oxides Flashcards

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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
Does phosphorus react with water?
No
26
What are the observations when phosphorus reacts with oxygen?
Burns with very bright white flame to produce white powder.
27
What is the equation when phosphorus reacts with oxygen?
P4 + 5O2 -> P4O10
28
What is the melting point of sulfur?
29
What is the melting point of sulfur?
95
30
What is the structure and bonding in sulfur?
Molecular
31
Does sulfur react with water?
No
32
What are the observations when sulfur reacts with oxygen?
Burns with blue flame and gives off chocking gas.
33
What is the equation for when sulfur reacts with oxygen?
S + O2 -> SO2
34
What is the melting point of chlorine?
-102
35
What is the structure and bonding in chlorine?
Molecular
36
What are the observations when sulfur reacts with water?
Dissolves giving very pale green solution
37
What is the equation for the reaction between chlorine and water?
Cl + H2O ⇌ HCl + HClO
38
Does chlorine react with oxygen?
No
39
What is the melting point of sodium oxide (Na2O)?
1275 (solid)
40
What is the structure of Na2O?
Ionic
41
What happens when Na2O reacts with water?
It dissolves
42
What is the equation for the reaction of sodium oxide and water?
Na2O + H2O -> 2NaOH (aq) The Na+ and O2- ions dissolves in water and then the O2- ions react with water.
43
What is the pH of the reaction between sodium oxide and water?
14
44
What is the equation for the reaction between sodium oxide and an acid?
Na2O + 2H+ -> 2Na+ + H2O
45
Does sodium oxide react with alkalis?
No
46
What is the nature of sodium oxide?
Basic
47
What is the melting point of magnesium oxide (MgO)?
2900 (solid)
48
What happens when MgO reacts with water?
Slightly soluble
49
What is the equation for the reaction between MgO and water?
MgO + H2O -> Mg(OH)2 (aq) Some Mg2+ and O2- ions dissolve in water.
50
What is the pH of the solution formed when MgO and water react?
10
51
What is the equation of MgO with an acid?
MgO + 2H+ -> Mg2+ + H2O
52
Does magnesium oxide react with alkalis?
No
53
What is the nature of magnesium oxide?
Basic
54
What is the melting point of aluminium oxide (Al2O3)?
2040 (solid)
55
What is the structure of Al2O3?
Ionic
56
What happens in a reaction between Al2O3 and water?
Aluminium oxide is insoluble due to very high lattice enthalpy. So no reaction takes place.
57
What is the equation for the reaction between aluminium oxide and acids?
Al2O3 + 6H+ -> 2Al3+ + 3H2O
58
What is the reaction between aluminium oxide and alkalis?
Al2O3 + 2OH- + 3H2O -> 2Al(OH)4
59
What is the nature of aluminium oxide?
Amphoteric (acid and base)
60
What is the melting point of silicon oxide (SiO2)?
1610 (solid)
61
What is the structure of SiO2?
Giant covalent
62
What happens in a reaction between silicon oxide and water?
Insoluble due to lattice of atoms linked by strong covalent bonds. No reaction occurs.
63
Does silicon oxide react with acid?
No
64
What is the equation for the reaction between silicon oxide and alkalis?
SiO2 + 2OH- -> SiO32- + H2O
65
What is the nature of silicon oxide?
Acidic
66
What is the melting point of phosphorus oxide (P4O10)?
580 (solid)
67
What is the structure of P4O10?
Simple molecular
68
What happens when P4O10 reacts with water?
It reacts violently
69
What is the equation for the reaction between phosphorus oxide and water?
P4O10 + 6H2O -> 4H3PO4 H2O molecules attach the P atoms leading to the release of H+ ions from the water molecules
70
What is the pH of the solution formed when phosphorus oxide reacts with water?
0
71
Does P4O10 react with acids?
No
72
What is the equation for the reaction between phosphorus oxide and alkalis?
P4O10 + 12OH- -> 4PO43- + 6H2O
73
What is the nature of phosphorus oxide?
Acidic
74
What is the melting point of SO2?
-75 (gas)
75
What is the structure of SO2?
Simple molecular
76
What happens when SO2 reacts with water?
It dissolves
77
What is the equation for the reaction between SO2 and water?
SO2 + H2O -> H2SO3 H2O molecules attach the S atoms, leading to the release of H+ ions from the water molecule.
78
What is the pH of the solution formed when SO2 reacts with water?
3
79
Does SO2 react with acids?
No
80
What is the equation for the reaction between SO2 and alkalis?
SO2 + 2OH- -> SO32- + H2O
81
What is the nature of SO2?
Acidic
82
What is the melting point of SO3?
17
83
What is the structure of SO3?
Simple molecular
84
What happens when SO3 reacts with water?
Reacts violently
85
What is the equation for the reaction between SO3 and water?
SO3 + H2O -> H2SO4 H2O molecules attach the S atoms, leading to the release of H+ ions from the water molecules.
86
What is the pH of the solution formed when SO3 and water react?
0
87
Does SO3 react with acids?
No
88
What is the equation for the reaction between SO3 and alkalis?
SO3 + 2OH- -> SO42- + H2O
89
What is the nature of SO3?
Acidic

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