Is anyone really good at chemistry

England113

Need help with questions

Reply 1

medleg

got an A* at a level so hopefully I can help :smile:

Reply 2

alow

Guess I'm okay.

Spoiler

Original post by medleg

got an A* at a level so hopefully I can help :smile:

goml

Reply 3

Dannyboy2015

What questions do you need help with?

Reply 4

Zacken

Original post by alow

Guess I'm okay.

Represent. :lol:

Reply 5

medleg

Original post by alow

Guess I'm okay.

Spoiler

goml

haha what? 😂

Reply 6

alow

Original post by medleg

haha what? 😂

Just kidding :wink:

Reply 7

ValerieKR

Why is it always the same people on every thread I enter? ^.-

Reply 8

alow

Original post by ValerieKR

Why is it always the same people on every thread I enter? ^.-

Because we all clearly spend far too much time on TSR.

Reply 9

England113

Original post by medleg

got an A* at a level so hopefully I can help :smile:

The presence of some halide ions in solution can be detected using aqueous silver nitrate and aqueous ammonia.

Identify a halide ions which, on addition of aqueous silver nitrate , forms a precipitate that is insoluble in concentrated aqueous ammonia.

Identify a halide ion which cannot be detected using these reagents.

Reply 10

England113

The presence of some halide ions in solution can be detected using aqueous silver nitrate and aqueous ammonia.Identify a halide ions which, on addition of aqueous silver nitrate , forms a precipitate that is insoluble in concentrated aqueous ammonia.Identify a halide ion which cannot be detected using these reagents.

Reply 11

ValerieKR

Original post by England113

Iodide - check your textbook

and uh fluoride i guess?

(edited 7 years ago)

Reply 12

England113

Original post by ValerieKR

Iodide - check your textbook

and uh fluoride i guess?

I haven't even started A levels I have finished GCSEs. I have absolutely no idea.

Reply 13

alow

Original post by England113

I haven't even started A levels I have finished GCSEs. I have absolutely no idea.

Is this work to prepare for your A Levels?

Reply 14

username1539513

Original post by ValerieKR

Iodide - check your textbook

and uh fluoride i guess?

Original post by England113

I haven't even started A levels I have finished GCSEs. I have absolutely no idea.

What ValerieKR said

Reply 15

England113

Original post by alow

Is this work to prepare for your A Levels?

Yes and I am worried as it needs to be in by 30th and I really want to do the course.

Reply 16

alow

Original post by England113

Yes and I am worried as it needs to be in by 30th and I really want to do the course.

A lot of the things you are asking are more easily and quickly found by searching on Google. Search for "Silver nitrate halide test" and you'll find lots of useful resources.

Reply 17

England113

Original post by alow

A lot of the things you are asking are more easily and quickly found by searching on Google. Search for "Silver nitrate halide test" and you'll find lots of useful resources.

I have but I don't understand what I am looking at . Please help

Reply 18

ValerieKR

Original post by England113

I have but I don't understand what I am looking at . Please help

I've already given you the answers
Chlorides dissolve in dilute ammonia
Bromides in concentrated ammonia
Iodides don't dissolve in ammonia at all

Any halide not on that list can't be tested for if that's what the exam asks