hermanntrude

different reactions are affected differently by temperature and pressure changes. Since you're 13, I expect you havent done the subjects you need to do to understand this effect. Kinetics begins to explain it, then equilibrium, and finally the link between free energy change and the reaction quotient. My advice is either to read a first-year degree-level chemistry textbook or wait until it comes up in your education

welcome to the forum, guys

the discussion went heavily off-topic here and began an interesting discussion on whether students should be allowed extra time or assistance in exams if they have disabilities. extra posts moved to a new thread in "science education"

hehehequackquack

one warning... some gases will pass right through a gas mask. Not many, but it's better just to take the gas away rather than risk it. It's also not difficult to create a hole in the seal between your face and a mask, causing you to breathe the gases inadvertantly

the voltage is usually set by the user. for instance if i used a 9V battery, the voltage would be 9V

couldnt the ether group be protonated in acid making it more soluble? or would it just decompose?

the source code is irrelevant. the source code isn't something you're supposed to be able to read unless you're a smug git trying to feel superior

i mean it's testing the way u type it in rather than your intelligence. It also discriminates against those who use the word "minus". the writer of the page could have allowed "minusone" as well, saving a lot of people a lot of time and frustration. Instead, they decided not to bother.

[ce]KClO4 -> KCl + 2O2[/ce]

i wouldnt even know how to look at the source code, and it's not exactly difficult to program in several correct answers

that's just annoying. They just said "wrong" when I wrote "negative one". Just because I had a space. And what's wrong with "minusone"?

i think it's to do with the chemical element's symbols: Carbon Oxygen S ilicon N eon Although i've tried "minus one", "negative one", "-1" and "minus 1" and "negative 1" and none of those work

perhaps the process of hell's existance could be described as exothermic?

it doesnt have to be a chemical reaction to be exo or endothermic. anything which loses heat is exothermic. Traditionally it's for chemical reactions and certain physical processes, but there's nothing wrong with using it for hell. However as you said it isn't a true story. You said that a good professor only gives marks for a good answer, Another thing that needs to be said is that a good professor doesn't ask dumb questions in their exams. Because of the nature of hell (unproven, part of a system of belief and fairly undefined), the question can only be answered subjectively.

I think the weight converter involves blue-whale testicles

http://www.weirdconverter.com/lengthheight.php 5000m is like 11 empire state buildings or 2812 giraffe's necks or 3.9 golden gate bridges lots more... some perhaps not appropriate, though

you will need a precipitation reaction. Unfortunately sodium nitrate is soluble, so you'd have to do one which precipitates the waste product, filter that off and then distill off the water, leaving you with sodium nitrate. May I ask what u want sodium nitrate for?

it means dont do what I did. perhaps you can try this: do the ICE table for the reaction with the larger Kp, then use the resultant amount of oxygen (and the other amount of reactant) for the other reaction. that should give a fair approximation

iodide, catalase and MnO2 all work very well. Also I think platinum works

good old haikus. hmm I'm crap at this but i do enjoy it: Americium is a synthetic substance find it in your home

ince you're smart enough to come here for information I'll give you some more. The shells are just the beginning. As you study chemistry further you'll discover there are also subshells within the shells and orbitals within the subshells. it gets quite complex, but very very interesting :0) careful when you google the subject, because it will often result in stuff beyond the level of your current course

moved to biology

OK pH<7 explains it, i think. The [ce]I3-[/ce] exists in equilibrium with the weak acid [ce]HI3[/ce], so addition of protons will cause the equilibrium to shift such that more iodine dissolves in the water.

my bad... didn't read it very carefully.