Answers by visitors named: Rebekah

Glutamate is another neurotransmitter associated with memory.

18 years ago

So just take 5 mols of water and convert to molecules?

18 years ago

underline a book name and put a poems name in quotes

17 years ago

this is all fine and good, but it doesn't give me what I need to find specific heat. If it helps, I meant heat of formation (delta H f).

17 years ago

How long should an application essay be? (max and min)

17 years ago

where does the temperature factor in? I raised it to 1/2 and got 1.75, but that was not the right answer. (I forgot to mention this, but the first reaction is the original one) Could you put a example up? I am very much a visual learner and need to see it...

17 years ago

Is there a good website that has good examples for ap chemistry ranging from easy to difficult?

17 years ago

I already worked out (c), but the rest is still just mush. I'm sorry for my stupidity, but this just doesn't make sense. I can find [H+] or [OH-] as long as I have the concentration of 1 of them, so, ???

17 years ago

By the way, how do you find H+ and OH- concentrations from the pH? I have scoured my text book, but found nothing.

17 years ago

For a.) NH2OH x^2/.50 = 1.1 x 10^-8 => .50(1.1 x 10^-8) = x^2 5.5 x 10^-9 = x^2 5.5 x 10^-9 square root = 7.416 x 10^-5 = x these are all the steps I have

17 years ago

ok. Like here in this example... 1.548937075 x 10 to the 12th. Would you do the problem 1.548937075 x 10 to the 12th which would be 1,548,937,075,000 first before you rounded. I think in the number that I got (1,548,937,075,000) there are 10 significant n...

17 years ago

sry... 1.548937075 x 10 to the 12th. round the number to 3 significat figures.

17 years ago

If you didn't do the power of 10 and just kept the number 1.548937075 wouldn't it be rounded to 1.55 if it was round to 3 significant numbers?

17 years ago

Yah, so would you not even look at the 10 to the 12th part of it?

17 years ago

Thanks so much.

17 years ago

238 x360 ----- use a calculator or write it on paper

16 years ago

thanks :]:]:]

16 years ago

yah that's how i was confused

15 years ago

Thank you :]

15 years ago

3x????

15 years ago

thanks, What do you put for the hexagon?

15 years ago

ok thanks so much!

15 years ago

thanks, and also do you know who was king after henry because in my text book it communicates John but i looked on google and it says richard

15 years ago

Henry II of England

15 years ago

Then did John come after that?

15 years ago

So like what are some examples because I was confused and my teacher said it had something to do with Mutualism and Parasitism.

15 years ago

Thanks, do you know of any specific ones that just talk about opposing or just supporting?

15 years ago

Thanks so much!

15 years ago

I found out the answer! also where do guppies live in the world. A website would be great! thanks:)

15 years ago

I got that... disregard this post

15 years ago

ok thanks so much!

15 years ago

ok thanks

15 years ago

I got it!

15 years ago

Thanks:)

15 years ago

where did you get 0.049?

15 years ago

oh so is it incorrect and the answer is 1.2 or is it 1.20? does the second answer have 3 sig figs?

15 years ago

0=6x + 8 +8y is that what the question is? it should most likely be in this format y=mx+b

15 years ago

I think it is beautiful

15 years ago

oh ok. you have to put that into slope intercept form. So it would be 8y=2 (because when we subtract the 3x with the 3x it cancels out) then divide the 8 so y= 1/4 im pretty sure that's how it would reduce down to now you just have to pull your info from...

15 years ago

I don't really understand your question? are you talking about 1st,2nd and 3rd person?

15 years ago

i think it would be chemical weathering

15 years ago

ernest y did u post that on my question? it doesn't ever pertain to my question

15 years ago

What do you mean?

15 years ago

A0 h=12s b)just plug in those numbers for s:)

15 years ago

im not 100% but wouldn't it be Emphasis and Proportion

15 years ago

ok,thanks.. so i got a)810 b)50. c)6.7 is that correct?

15 years ago

thanks

15 years ago

i got 5.76e4 but its wrong

15 years ago

divide -15 by 5. so -3

15 years ago

divide 49 by -7

15 years ago

just to conferm is this the question 4x^2 - 5x ?

15 years ago

I got it wrong! would it be 5e3. cause i messed up on the amount of spaces but idk if that is the correct sig fig?

15 years ago

I got it:) it was 5e2

15 years ago

I got it:)

15 years ago

oops here. When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 12.0 fluid ounce drink from 75°F to 35°F, if the heat capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)

15 years ago

thanks!

15 years ago

i have another question: A 43 kg sample of water absorbs 343 kJ of heat. If the water was initially at 22.1°C, what is its final temperature? I got 1.9 but i think i didn't do it correctly

15 years ago

thanks. um. i got 201. but it said it was wrong

15 years ago

how do i know what that mass of the ice is?

15 years ago

oops. forget what I said last

15 years ago

I got it wrong. can u explain it better. i don't think that is in the correct equation form??

15 years ago

Oops I just need c

15 years ago

Oh yah ok thanks:)

15 years ago

I think I got it but why do you say I got my hair cut. Je me suis fait couper Les cheveux? Why do you use me suis?

15 years ago

this is what i have so far: 2AgNO3 + CaCl2 ---> 2AgCl + Ca(NO3)2 for AgNO3: V= 0.100L c=0.0300 mol/L n=cV = 0.03 mol for CaCl2: V= 0.100L c=0.0300 mol/L n=cV = 0.03 mol and now I don't know how to determine the limiting reactant.

14 years ago

Thanks!

14 years ago

Also I have been looking around but not really sure. Can hypochondria be inherited?

14 years ago

so 44.0 kj/1mol X 2.46g? i tried that and got it wrong. am i suppose to convert g to kj?

14 years ago

actualy Kr and Cu. thanks:)

14 years ago

nvm i got it wrong:(

14 years ago

so would it be 2.86?

14 years ago

thanks:)

14 years ago

Im confused, where did you get NaOH?

14 years ago

Thanks!

14 years ago

I keep getting the same thing for b. .17

14 years ago

Thanks:)

14 years ago

Now I just need 3 and 4 checked

14 years ago

I got it I just need help on this one... The gas phase reaction between nitrogen gas and oxygen gas to give NO gas is an endothermic process since 180.8 kJ of heat energy is absorbed when 1 mol of nitrogen reacts with 1 mol of oxygen. In which direction w...

14 years ago

So no effect?

14 years ago

is it 6.429x10^-9?

14 years ago

oops... (c) Using the appropriate Ksp value from Appendix D, calculate the solubility of Cu(OH)2 in grams per liter of solution. Appendix D: Ksp for Cu(OH)2 = 4.8 x 10-20

14 years ago

I got A I just need b and c:)

14 years ago

Thanks soooo much:)!

14 years ago

ooooooooo I am liking these quotes. Thankyou Ms. Sue and Writeacher!

14 years ago

That makes sense! Thanks:)

14 years ago

*in them

14 years ago

That's the way I got the answer too. Thank you!!!

13 years ago

thanks!

13 years ago

how about plating?

13 years ago

so is it asking which i don't like?

13 years ago

yes, so just listing 3 things is a triad? you don't need a certain form?

13 years ago

thanks!

13 years ago

Also why is blood and bone considered a connective tissue?

13 years ago

yah they have different lengths and tones of barks

13 years ago

and pitches

13 years ago

for the second problem what is th height??

13 years ago

ohh wait ok that was me just having a dumb moment haha. THANKS sooo much:)

13 years ago

thanks so much! where di the 3/8 come from??

13 years ago

Thanks, so is the degree all of the x added together or jut the greatst one bcause tthen wouldnt 12 be 3 instead of 5?

13 years ago

ohhhh gotcha thanks!!

13 years ago