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Could you please take a look at this for me?

1 Battery supports/give approximately 6 hours of playtime.
2 What the best time a day/a night to buy a sandwich at a fastfood place.
3 Have you ever needed to go to the bathroom while you were/you'e been in an exam.
4 I've listen to this song so much/so many times that I'm sick of it.
5 It has the same number of protons as electrons/as this gas (comparing two different things?)
6 Don't tell me I should have gone grocery shop when you were loving the snacks/loved the snacks while you were watching the movie
7 THere is a yellow one in the middle/among all the red ones. (candy)
8 Why are you walking so slowly in relation to/compared to him.

thank you
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1) The battery lasts for/is good for about 6 hours of playtime.
2) time of day/time of night
3) while in an exam/while you were in an exam
4) I've listened .... (both options are okay)
5) It has the same number of protons as electrons -- okay.
It has the same number of protons as this gas -- ?? Unclear
6) gone grocery shopping

This sentence is too complicated and confusing, especially the time sequence. (Don't tell me I should have done A when you were doing B while you were doing C -- ??) Try breaking it up into a couple of sentences.

7) in the middle of/among/in with

8) Yours are not incorrect, but "Why are you walking so much slower than he is?" would be more natural. (I suppose it really should be "so much more slowly", but I think most native speakers would say "so much slower")
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Thank you Khoff

for 6

Don't tell me I shouldn't have gone grocery shop when you were loving the snacks/loved the snacks while you were watching the movie.

what this meas or what I'm trying to convey is that

Mr X told Mrs X not to go grocery shopping, but Mrs X went anyway and Mr X ate all the groceries while watching a movie.

now does the sentence make a little more sense? How would you say it?
It's still too much for one sentence, but at least it makes more sense now. How about this:
"Don't tell me I shouldn't have gone grocery shopping. You're the one who ate everything I bought!" or
"Don't tell me I shouldn't have gone grocery shopping. You're the one who ate all the snacks while watching that movie."
OK thank you, let me give it one last shot.

Don't tell me I should have gone grocery shopping when you're the one who ate everything while watching a movie.

thank you
Students: Are you brave enough to let our tutors analyse your pronunciation?
Yeah, that's better. Oddly enough, it works with both "should" and "shouldn't," although the meaning is different. (She ate everything in the house and then complained that he should have gone shopping because they were out of snacks -- or she tells him he shouldn't have gone shopping, but nonetheless she eats everything he bought.)