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Physics + Chemistry > Reactions of non-metal/metal oxides with water > Flashcards

Reactions of non-metal/metal oxides with water Flashcards

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1
Q
  1. What is the solubility of the oxide: Oxide of potassium + water
  2. Colour of the indicator in the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Highly soluble
  2. Purple violet
  3. Alkaline
  4. Potassium Hydroxide
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2
Q
  1. What is the solubility of the oxide: Oxide of carbon + water
  2. Colour of the indicator in the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Soluble
  2. yellow
  3. weakly Acidic
  4. Carbon dioxide
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3
Q
  1. What is the solubility of the oxide: Oxide of Iron + water
  2. Colour of the indicator is the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Insoluble
  2. Green [due to distilled water]
  3. Neutral
  4. N/A
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4
Q
  1. What is the solubility of the oxide: Oxide of magnesium + water
  2. Colour of the indicator is the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Forms an suspension
  2. Blue
  3. Alkaline
  4. Magnesium Hydroxide
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5
Q
  1. What is the solubility of the oxide: Oxide of Sulphur + water.
  2. Colour of the indicator is the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. soluble
  2. red
  3. Acidic
  4. Sulphurous acid
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6
Q
  1. What is the solubility of the oxide: Oxide of Sodium + water
  2. Colour of the indicator is the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Insoluble
  2. Blue
  3. Alkaline
  4. Sodium Hydroxide
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7
Q
  1. What is the solubility of the oxide: oxide of phosphorus + water.
  2. Colour of the indicator is the solution [universal indicator]
  3. Is the new substance ACIDIC or ALKALINE?
  4. Name of the product
A
  1. Soluble
  2. red
  3. Acidic
  4. Phosphoric acid
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8
Q

When a non-metal oxide and water react they form a/n?

A

Acid

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9
Q

Non-metallic oxides in solution are?

A

Acidic

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10
Q

All metal oxides in solution form?

A

Bases

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11
Q

When a metal oxides and water react, they from?

[apart from a metal hydroxide]

A

an alkali

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12
Q

When a non-metal oxide and water react, they form?

[apart from non-metal hydroxide]

A

An acid

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13
Q

How is rust formed?

A

When iron metal, O2 and water moisture react to form a complex compound called rust.

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14
Q

Rusting can only occur where?

A

At the surface of the iron there it is exposed to air

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15
Q

Give two ways to prevent rusting

A
  1. Paint it to create a barrier between the surface of the metal and oxygen and moisture.
  2. Can be coated with with a thin layer of zinc [metal which do not rust.]- this is done by a process called galvanising.
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16
Q

How is acid rain created?

A

Coal[carbon]-fired power stations + other sources that burn fossil fuels emit CO2, Sulfur dioxide and nitrogen oxides.
It then reacts with the water vapour in the sky to form acids.
These acid then fall back to Earth as precipitation

Physics + Chemistry (5 decks)

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