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Chemistry Kayla > Gas Chemistry > Flashcards

Gas Chemistry Flashcards

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1
Q

What will happen when carbon is burned in a plentiful supply of oxygen?

A

Gas given off
Glows bright orange
Heat given off

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2
Q

When copper is heated in oxygen what solid is formed?

A

Copper oxide

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3
Q

What colour change would you observe when copper is heated in oxygen?

A

Red-Brown to Black

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4
Q

How would you burn magnesium in air?

A

Use tongs
Hold Mg ribbon at the end
Put into blue flame of Bunsen

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5
Q

What safety precautions should you take when burning Mg in air?

A

Goggles

Keep at arms length

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6
Q

What would you observe when Mg is burned in air?

A

Bright white light

White ash produced

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7
Q

What are 2 physical properties of nitrogen gas?

A

Colourless

Odourless

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8
Q

What are some uses for nitrogen?

A

Coolant, food packaging, manufacture ammonia

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9
Q

What is the second most abundant gas in our atmosphere?(nitrogen is first)

A

Oxygen

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10
Q

Which is a atmospheric gas?

Argon. Hydrogen. Chlorine.

A

Argon

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11
Q

What are some physical properties of sulphur?

A

Odourless, solid yellow powder, brittle, insoluble in water

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12
Q

What colour is the flame when soulful burns in air?

A

Blue

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13
Q

What word describes the smell of sulfur gas?

A

Pungent

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14
Q

What proportion of the atmosphere is made up of nitrogen?

A

80%

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15
Q

What are 3 properties of nitrogen gas?

A

Very unreactive,colourless, no smell

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16
Q

What is the formula for nitrogen gas?

A

N2

17
Q

What are 2 properties of hydrogen gas?

A

Less dense than air

Colourless

18
Q

What happens if a lighted splint is placed in a test tube of hydrogen gas?

A

Squeaky pop

19
Q

What type of element is Magnesium?

A

Metal

20
Q

What type of element is Carbon?

A

Non metal

21
Q

What type of element is Sulfur?

A

Non metal

22
Q

What type of element is Iron?

A

Metal

23
Q

What type of element is copper?

A

Metal

24
Q

What type of reaction is magnesium?

A

Highly exothermic

Burns with bright white flame

25
Q

What type of reaction is carbon?

A

Exothermic

Glows orange when heated strongly

26
Q

What type of reaction is sulfur?

A

Burns slowly with blue flame

27
Q

What type of reaction is Iron?

A

Burns with orange sparks

28
Q

What type of reaction is Copper?

A

Glows red, occasionally with blue-green flame

29
Q

What is the oxide for magnesium?

A

Magnesium oxide, MgO- solid white powder

30
Q

What is the oxide for Carbon?

A

Carbon dioxide CO2 - colourless, odourless gas

31
Q

What is the oxide for sulfur?

A

Sulfur dioxide, SO2 - colourless gas with choking smell

32
Q

What is the oxide for Iron?

A

Triiron tetroxide, Fe3O4- Black solid powder

33
Q

What nature is magnesium?

A

Basic

34
Q

What nature is Carbon?

A

Acidic

35
Q

What nature is sulfur?

A

Acidic

36
Q

What nature is iron?

A

Basic

37
Q

What nature is copper?

A

Basic

38
Q

What to basic oxides react with?

A

Acids

39
Q

What do acidic oxides react with?

A

Alkalis

Chemistry Kayla (2 decks)

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