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Wouldn't that just be 7!/2? :confused: It's asking for the number of arrangements if MISS always appears, not for the probability that MISS will appear. What answer did you get? EDIT: Actually, 7!/4, since there are two S's in MISS. I'm still not sure.

Just a brief list, this may not include everything: n = m/M ΔH = MCΔT C1V1 = C2V2 E0 of galvanic cells At 0°C and 1 atm, one mole of any gas occupies 22.41 L At 25°C and 1 atm, one mole of any gas occupies 24.79 L pH = -log10[H+] [H+] = 10-pH Volumetric and gravimetric calculations...

There isn't much working out involved in converting a molecular formula into an empirical one. If you mean calculating the empirical formula from given percentage compositions of elements in a compound, then look here for examples. Ethene is C2H4, the ratio of C to H is 2:4, which is the same...

You need to do some reading. :p Ah, met on the internet. You didn't have any doubts about whether it would work out when you started the relationship (since he does live in another state)? Well, don't be too upset about it, you have big scary exams in less than a week. If he doesn't...

Most guys consider cheating as sex. For your sake I hope your guy's different from the crowd. When was the last time you saw him? How did you guys meet anyway - did you start dating and then one of you moved away?

I agree with the above. Don't flirt if you have to force yourself, you'll just come off as unnatural as you feel. Be friends before you take it any further - you learn to crawl before you learn to walk. Besides, if you don't even know her well, you can't claim to like her for anything but...

He nearly cheated? That would make me feel so insecure. I'm very sceptical on long-distance relationships. I think you guys are just hanging on. At least he acknowledged that he has been ignoring you. Don't worry about it too much. You have exams coming up, you need to concentrate. After...

First of all, are you in year 12? Being the massive hypocrite that I am - it would be a lot easier if you put your HSC year in your profile. :)

NaOH absorbs moisture from the air and reacts with carbon dioxide, whereas anhydrous sodium carbonate does not, but you still need to dessicate it.

You need to know that neutralisation is an exothermic reaction so you can say that you can't pour base onto your hand if you touched some acid. :p I don't think it matters too much that heat is released when the spill is located on the ground.

If he wrote that poem or wore too many accessories, then yes. :rolleyes:

The first stanza is sweet. It doesn't need explaining, so the second stanza totally ruins it. Less is more, kiddo. :p

Best of luck to everyone. :) Study hard, sleep well, don't leave it to the last minute (or day).

The oyster question! *Faints* http://community.boredofstudies.org/showthread.php?t=80427&highlight=oyster http://community.boredofstudies.org/showthread.php?t=81124&highlight=oyster

That's true, it's always worth giving a go. It's just that if the kid's too young, he or she might not be able to deal with rejection and break-ups. :p Why is it that whenever I share my knowledge or opinion, people assume I know everything or that I think I know everything? Especially...

E-gronk's post reminds me strongly of Harlequinman. No offence intended.

It's because males are generally less immature than females of the same age. So if you have the male being even younger, the maturity gap would be too large for the relationship to work.

Nothing makes me less or more self-conscious anymore. I've become desensitized and narcissistic.

In terms of acids, ionisation and dissociation are essentially the same thing. It means the acid donating one or more protons in solution. This belongs in the AE module, and your AAS question in the CMM module. :)

Could you please post the question? A lot of us don't have access to CSSA papers. :)