Author Topic: Edexcel CHEMISTRY DOUBTS!!!!  (Read 261794 times)

Offline NotAbod

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1725 on: April 24, 2014, 08:55:51 pm »
can someone PLZZZZ tell me what  happens when zinc hydroxide reacts with H+ ions?cuz i know ZN(OH)2 is amphoteric and reacts with OH- ions to give ZN(OH)4 but what does it give when it reacts with H+ ions?
Yes, water. You get salt too.

Offline conquerpro

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1726 on: April 27, 2014, 08:35:52 am »

Yes, water. You get salt too.
ya,but which salt would u get???

Offline astarmathsandphysics

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1727 on: April 28, 2014, 09:04:56 pm »
I can only make it balance if the result s ZnO
I don't know if this is a salt.

Offline NotAbod

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1728 on: April 29, 2014, 10:37:27 am »
Depends on the acid you're using. It's for example HCl then your salt is ZnCl2.
If the acid is H3PO4, your salt is Zn3(PO4)2

By the way, is that an mcq?
« Last Edit: April 29, 2014, 10:39:16 am by NotAbod »

Offline conquerpro

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1729 on: April 30, 2014, 03:08:55 am »
yup its an mcq
By the way i have another doubt.when 4 ligands attack a transition metal cation we know that the shape is either tetrahedral or square planar.but how do we know WHEN its square planar and when its tetrahedral?

Offline NotAbod

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1730 on: April 30, 2014, 09:37:25 am »
No idea, sorry.

Offline conquerpro

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Re: Edexcel CHEMISTRY DOUBTS!!!!
« Reply #1731 on: May 19, 2014, 01:38:32 pm »
can sum1 plzz say confirm that if they ask us to write an ionic equation will they say whether the compound will be aqueous or do we need to determine ourselves.this is for edexcel chem 1