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1. I don't know if you mean 4b/(5 - 1) or (4b/5) - 1, I'm going to assume the latter because the first one is just silly. :o 4b/5 - b/3 = 7 4b - 5b/3 = 35 12b - 5b = 105 7b = 105 b = 15 2. 4k3 + 11 = 267 4k3 = 256 k3 = 64 k = 4 3. sqrt x = 20/10 = 2 x = 4

I do forensics too. Post in the Forensics Sub-forum. Amino acids contain both an amine and a carboxylic acid functional group. That is, NH2 and COOH.

Here's my answer: http://community.boredofstudies.org/showpost.php?p=1954193&postcount=29 Quit picking on me.

From a group of 9 people, including Mr. and Mrs. X, a committee of 5 people is to be chosen. Mr. X will not join the committee without his wife, but his wife will join the committee without her husband (LOL). In how many ways can the committee be formed? Find the probability that a particular...

Good. :) You must be.

Are you kidding? I was going to throw up on my examiner. I'm okay with Continuers. It's Extension I'm scared about, but that's not until next week. I absolutely love reading and responding. It's my best bit. I sometimes tune out when the tape is playing during listening. I'm worried...

If you were as intelligent, interesting and tasteful as you claim to be, you'd be watching House. :rolleyes:

This might help - thanks to Andrew James. For the first one, if they don't give you measurements, make it up - state clearly that you're making (for example) a ~0.01 M solution. The steps are: Place solid sodium hydrogen carbonate in a dessicator or oven. After it has been dessicated...

Haha, Randy's the bomb! :p Remember that episode when he said he had a girlfriend called Crystal, and he told Sharona when he was standing in front of a box of crystalware. Then he showed her a photo which is the photo that came with his wallet - he said she was a "wallet model". And each...

I think Bscienceboi is right. Pre-ejaculation is different from premature-ejaculation. Sex… could kill you. Do you know what the human body goes through when you have sex? Pupils dilate, arteries constrict, core temperature rises, heart races, blood pressure skyrockets, respiration becomes...

*Shrugs* It was always either going out with a group of people, with one friend of the same sex, or with each other. If he does end up going somewhere with a girl, I wouldn't throw a tantrum. There have already been plenty of tests of integrity without the above. :rolleyes:

Lol, yes. It depends on whether or not you are a player. Assuming you are, you put your playership and your relationship on the scales and give up the one that's lighter than the other.

You have to watch out for these things. :p People who write up chemistry exams can be very very sneaky. Always balance your equations, and double check your calculations. Also, use some logic - say if you have 10 mL of AgNO3 and 10 mL of NaCl reacting and your mass of the AgCl precipitate is...

Well, I wouldn't like it if girls try to hit on him, and vice versa. We never really went out one on one with a friend of the opposite sex anyway, so it's not a big deal, and we don't have a problem with it. So I don't see why you should.

If he really has liked you for eight years, then he probably can't hack being around you and feeling so strongly for you with you treating him as nothing more than a friend. Think about how you would act. If you've been liking someone for years, and they've never paid that kind of attention...

It's other people we don't trust.

Alternatively, this is a formula which I should (but rarely) use. :p Probably because it becomes confusing in these cases: 2KOH + H2SO4 → K2SO4 + 2H2O Since the molar ratio is 2:1, C1V1/C2V2 = 2 (1 being KOH and 2 being H2SO4) C1V1 = 2C2V2 0.05 x 0.02 = 2(C2 x 0.0205) Working...

2KOH + H2SO4 → K2SO4 + 2H2O KOH: 0.02 x 0.05 = 0.001 moles H2SO4: 0.0205 x M moles Molar ratio = 2:1 . : 0.001 moles of KOH will react with 0.0005 moles of H2SO4. 0.0005 moles of H2SO4 in 0.0205 L. . : M = 0.0005/0.0205 = 0.024 (2 d.p.) I sure hope I'm right.

Anti-chemistry thread here. Tips here, here, here and here. Browse around.

I liked Sharona! She was cool. They gave a shockingly crap reason - Sharona left to go back to New Jersey. In two seconds of the first episode with Natalie Teeger, they killed Sharona off.