Past Paper 2001 - Section B
Q6(b) What are they on about here with the acidic oxide and basic oxide? I had to guess but got it wrong.
How do you know if it is an acidic oxide or a basic oxide? And what are they?
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2001 - Written Paper - Q6(b)
Started by david__taylor, May 26 2005 08:22 AM
6 replies to this topic
#2
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Posted 26 May 2005 - 08:45 AM
Sodium hydroxide is an alkali so aluminium oxide will behave as an acidic oxide to react.
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#3
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Posted 26 May 2005 - 11:34 AM
Ooooooh, thanks very much, it better come up on Tuesday now that I understand.
#4
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Posted 26 May 2005 - 12:10 PM
Remember METAL OXIDES, ie things like NaOH, or LiOH are basic, ie they will neutralise an acid and produce water in the process.
NON-METAL oxides, eg SO
or Cl O are acidic, ie react to neutralise a base, producing water in the process.
Some oxides, eg Al O 
, or water are AMPHOTERIC, that is can behave as an acid OR a base.
NON-METAL oxides, eg SO
or Cl O are acidic, ie react to neutralise a base, producing water in the process.Some oxides, eg Al
O , or water are AMPHOTERIC, that is can behave as an acid OR a base.
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#5
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Posted 26 May 2005 - 03:25 PM
QUOTE(werlop @ May 26 2005, 12:10 PM)
Remember METAL OXIDES, ie things like NaOH, or LiOH are basic, ie they will neutralise an acid and produce water in the process.
NON-METAL oxides, eg HCl or HBr are acidic, ie react to neutralise a base, producing water in the process.
Some oxides, eg Al O , or water are AMPHOTERIC, that is can behave as an acid OR a base.
NON-METAL oxides, eg HCl or HBr are acidic, ie react to neutralise a base, producing water in the process.
Some oxides, eg Al
O , or water are AMPHOTERIC, that is can behave as an acid OR a base.
How are HCL and HBr non-metal oxides? I know they are non-metals but how are they oxides, they isn't even Oxygen in them?
#6
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Posted 26 May 2005 - 06:10 PM
Sorry, wasn't paying attention to what I was typing, I just thought "acid" and wrote down the first acids which came to my head.
Non-metal oxides are acidid though.
I've corrected my post.
Non-metal oxides are acidid though.
I've corrected my post.
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If you can keep your head when all about you
Are losing theirs and blaming it on you,
If you can trust yourself when all men doubt you
But make allowance for their doubting too,
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Or being lied about, don't deal in lies,
Or being hated, don't give way to hating,
And yet don't look too good, nor talk too wise:
Yours is the Earth and everything that's in it,
And--which is more--you'll be a Man, my son!
If you can keep your head when all about you
Are losing theirs and blaming it on you,
If you can trust yourself when all men doubt you
But make allowance for their doubting too,
If you can wait and not be tired by waiting,
Or being lied about, don't deal in lies,
Or being hated, don't give way to hating,
And yet don't look too good, nor talk too wise:
Yours is the Earth and everything that's in it,
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#7
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Posted 26 May 2005 - 11:02 PM
An acidic oxide is an oxide of a non-metal which reacts with a metal to form an acid. Note, however, that they are not themselves acids since they aren't able to act as proton (H+) donors
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