Chemistry help Watch

a.mandie
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I'be been given this sheet for homework in Chemistry but I'm really lost on how to work it out. Could someone please tell me how to do this? I've written some of the answers but they're wrong so ignore them completely Attachment 709662
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EierVonSatan
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Attachment not found :no:
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a.mandie
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(Original post by EierVonSatan)
Attachment not found :no:
Sorry, I think it should be fixed now
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EierVonSatan
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(Original post by a.mandie)
Sorry, I think it should be fixed now
They're asking about anions (negatively charged ions).

Group 2 hydroxides solubility increases down the group - which solution would this be?

Group 2 sulfates solubility decreases down the group - which solution would this be?

Group 2 carbonates are sparingly soluble at the top of the group and get less soluble - which solution would this be?
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a.mandie
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(Original post by EierVonSatan)
They're asking about anions (negatively charged ions).

Group 2 hydroxides solubility increases down the group - which solution would this be?

Group 2 sulfates solubility decreases down the group - which solution would this be?

Group 2 carbonates are sparingly soluble at the top of the group and get less soluble - which solution would this be?
Okay, so I tried to work it out again.

Solution 1 - Carbonate, as Group 2 carbonates have very similar, though decreasing, solubilities going down the group so all the precipitates look the same

Solution 2 - Hydroxide, as Group 2 hydroxides increase in solubility going down the group so the precipitate gets lighter from Mg(OH)2 to Ba(OH)2

Solution 3 - Sulphate, as Group 2 sulphates decrease in solubility going down the group so the precipitates get heavier

Is that right? Thank you v much for the help BTW.
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EierVonSatan
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(Original post by a.mandie)
Okay, so I tried to work it out again.

Solution 1 - Carbonate, as Group 2 carbonates have very similar, though decreasing, solubilities going down the group so all the precipitates look the same

Solution 2 - Hydroxide, as Group 2 hydroxides increase in solubility going down the group so the precipitate gets lighter from Mg(OH)2 to Ba(OH)2

Solution 3 - Sulphate, as Group 2 sulphates decrease in solubility going down the group so the precipitates get heavier

Is that right? Thank you v much for the help BTW.
Correct :yep:
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a.mandie
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(Original post by EierVonSatan)
Correct :yep:
Thank u
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