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Chemistry > Chemistry Inorganic Reactions [combustion X+O2]_[oxides+h2o] > Flashcards

Chemistry Inorganic Reactions [combustion X+O2]_[oxides+h2o] Flashcards

1
Q

Sodium combustion- equation and observation

A

4Na + O₂ → 2Na₂O
Yellow flame

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2
Q

Magnesium combustion- equation and observation

A

2Mg + O₂ → 2MgO
White flame

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3
Q

Aluminium combustion- equation and observation

A

4Al + 3O₂ → 2Al₂O₃
White flame

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4
Q

Silicon combustion- equation and observation

A

Si + O₂ → SiO₂
White sparks

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5
Q

Phosphorus combustion- equation and observation (flame and solid)

A

4P + 5O₂ → P₄O₁₀(s)
Yellow flame
White solid

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6
Q

Sulfur combustion- equation and observation

A

S + O₂ → SO₂
Blue flame

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7
Q

Sulfur dioxide combustion- equation

A

2SO₂ + O₂ → 2SO₃

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8
Q

Calcium combustion- equation and observation

A

2Ca + O₂ → 2CaO
Brick red flame

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9
Q

Strontium combustion- equation and observation

A

2Sr + O₂ → 2SrO
Scarlet red flame

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10
Q

Barium combustion- equation and observation

A

2Ba + O₂ → 2BaO
Apple green flame

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11
Q

Potassium combustion- equation and observation

A

4K + O₂ → 2K₂O
Lilac flame

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12
Q

Flame color of Li

A

Crimson red

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13
Q

Flame color of Cu

A

Blue-green

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14
Q

Aluminium oxide + H20 EQUATION

A

WONT HAPPEN

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15
Q

Phosphorus (V) oxide + H20 EQUATION

A

P₄O₁₀ + 6H₂O → 4H₃PO₄
(H₃PO₄ + H₂O ⇌ H⁺ + PO₄³⁻)

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16
Q

Silicon (IV) oxide + H20 EQUATION

A

WONT HAPPEN

17
Q

Magnesium oxide + H20 EQUATION

A

MgO + H₂O → Mg(OH)₂

18
Q

Sodium oxide + H20 EQUATION

A

Na₂O + H₂O → 2NaOH

19
Q

Sulfur dioxide + H20 EQUATION

A

SO₂ + H₂O → H₂SO₃

20
Q

Sulfur trioxide + H20 EQUATION

A

SO₃ + H₂O → H₂SO₄

21
Q

Group 2 sulfates solubility. Down the group… increases or decreases?

A

DECREASES (BaSO4 highly insoluble)

22
Q

Group 2 hydroxides solubility. Down the group… increases or decreases?

A

INCREASES (Ba(OH)2 highly soluble)

23
Q

Group 2 Thermal stability

A

eg:CaCO₃ and Ca(NO₃)₂ thermally decompose easily with heat
So…Thermal stability INCREASES down the group

Chemistry (23 decks)

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