Wednesday
July 23, 2014

Posts by rebekah


Total # Posts: 451

French III
Can someone please explain to me the difference between the futur and the futur causitive(sp?)

Chem
Oops I just need c

Chem
(b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109? % (c) If the mass of Ag-107 is 106.905, what is the mass of Ag-109? amu I really need help. Can u say the answer then explain how you got it? Thanks:)

Chem
Oh yah ok thanks:)

Chem
(b) If the natural abundance of Ag-107 is 51.84%, what is the natural abundance of Ag-109? Thanks

Chem
so how would u do it when an element gains. like Cl?

Chem
Yah I dont think we have gotten to the second part but the first makes sense. Thanks:)

Chem
thanks. can u explain that? and how did u know the stuff? like i am confused

Chem
Predict how many electrons will most likely be gained or lost by each of the following elements. Al I know it loses but how many?

chem
One could easily determine a single bb's mass by simply weighing it or by weighing 100 BBs and dividing the mass by 100. Why couldnt Robert Millikan use this procedure to measure the charge of an electron? Thanks:)

chemistry
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.) please explain realy realy well tha...

chem.
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

chem.
thanks!

chem.
Calculate the amount of heat required to raise the temperature of a 25 g sample of water from 5°C to 10.°C. i got 523 then rounded it to two sig figs 520 but it said it was wrong

chemistry
I got it wrong. can u explain it better. i dont think that is in the correct equation form??

chemistry
oops. forget what I said last

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

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

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

chemistry
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.)

chemistry
capacity of the drink is 4.18 J/g·°C? (Assume that the heat transfer is 100% efficient.)

chemistry
I got it:)

chemistry
If 1.68 L of water is initially at 25.0 °C, what will its temperature be after absorption of 6.8 10-2 kWh of heat? I dont know how to set it up because i have the equation q= m times c times change in temp (the triangle and the a T is the symbol for that. I know ther is a ...

chemistry
I got it:) it was 5e2

chemistry
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?

chemistry
Calculate the amount of heat required to raise the temperature of a 16 g sample of water from 5°C to 12°C. Round to the correct number of sig figs. I got 5e3 and it was wrong.

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

Questions about the Crucible
1) What happens when john turns to elizabeth for advice in act 4. Also... I cant find the physical appearance for Francis Nurse. Does anyone know how he is portrayed and looks like in the play

Chemistry
.Question part Points Submissions 1 0/0.5 2/3 Total 0/0.5 ...In the explosion of a hydrogen-filled balloon, 0.75 g of hydrogen reacted with 6.9 g of oxygen to form how many grams of water vapor? (Water vapor is the only product.) i already posted this but i dont think people u...

Chemistry
349 kJ to joules

math
divide 49 by -7

math
divide -15 by 5. so -3

chemistry
i got 5.76e4 but its wrong

chemistry
241 kJ to Calories how do i do this?

Chemistry
In the explosion of a hydrogen-filled balloon, 0.75 g of hydrogen reacted with 6.9 g of oxygen to form how many grams of water vapor? (Water vapor is the only product.) I am really confussed on how to do this.

Math
11+d=b b+3 +d=37 so.. plug in the top equation to the bottom and you get d+11 +d=37 so 2d=26 divide and you get d=13 plug this into the top equation and you get b=24 so answer: b=24 d=13 and you check by adding both and they equal 37

beginningalgebra
i posted on your previous post:)

rly need help on math problem!
Directions: Use each statement as givena and draw a single conclusion using all of the statements. 1) No birds,except ostriches, are nine feet high.There are no birds in this aviary that belong to anyone but me. No ostrich lives on mince pie. I have no birds less than nine fee...

begining algebra
(y/4) +y simplified: 5/4y

maths
2=1/n multiply by n 2n=1 divide by 2 n=1/2

math-logic
oops for 1) i got eggshells => not unselfish

math-logic
use each statement as given, and draw a single conclusion using all of the statements. => means implies 1) no misers are unselfish.None but misers save eggshells. Answer i got: eggshells => unselfish 2) Every eagle can fly.Some pigs cannot fly Answer 1 got:Every eagle =&...

maths
plug in the numbers so 20=4r then divide by 4 20/4 so 5=r

quick chemistry
A solid white substance A is heated strongly in the absence of air. It decomposes to form a new white substance B and a gas C. The gas has exactly the same properties as the product obtained when carbon is burned in an excess of oxygen. What is solid B most likely to be? a)com...

conversion problems
thanks

conversion problems
convert 3.1 L to quarts

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

chemistry
Fill in the blanks. (a) 5.6 ft2 = ____ in2 (b) 5.6 yd2 = _____ ft2 (c) 5.6 m2 = ____ yd2 can you please explain how to do it

algebra 1
A0 h=12s b)just plug in those numbers for s:)

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

Chemisty (Sig Figs)
What do you mean?

Chemisty (Sig Figs)
1.20 Mm to kilometers its 1200 but when I put it in it said not the correct number of sig figs

english
I dont really understand your question? are you talking about 1st,2nd and 3rd person?

sig figs
how do you round 0.009934 to two sig figs? would it be .010? or would that be 3 sig figs?

Math
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 thats how it would reduce down to now you just have to pull your info from that

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

poetry
I think it is beautiful

science
i think it would be chemical weathering

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

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

Chemistry-sig figs
where did you get 0.049?

Chemistry-sig figs
Each of the following numbers was supposed to be rounded to two significant figures. For each one below, decide whether it was correctly rounded or not, and for those that were incorrectly rounded, correct them (a) 1.249 X 10 to the 3rd power. They said it rounded to 1.3 X 10 ...

Chemisty (Sig Figs)
so i am terrible at this. Round each number to 3 significant numbers. Can you explain? 1. 9845.42800 2. 1.548937675e12 3. 10.7771777425 4. 0.000045875 thanks:)

French
Thanks:)

French
what does this mean? "Quelle est ta matiere scolaire preferee? thanks:)

French
I got it!

French
How do you say "I prefere track" interms of the sport and not the actual track. I know how to say I prefer and I know that track has the word l'athletisme(sp?) but I'm not sure what come before. Is it faire or jour and is it du after that? Thanks:)

History
Do you think modernization was a positive or negative movement in the Ottoman Empire? Why?

Biology
How have guppies adapted over time to their freshwater environment? thanks:)

Biology
What kinds of cells make it difficult to tear fern leaves from a plant? thanks:)

algebra
9=-3/8r

Biology
I know that miller syndrome is autosomal recessive so would i use a karyotype or pedegree to represent that because I have to: Include a pedegree of at least 3 generations to demonstrate the inheritance pattern. Be sure to label and explain the chart accurately so that someone...

Biology
ok thanks

Biology
What are some treat ments for Miller Syndrome? If you found a website that would be great. I already know of NINDS and FACES websites. thanks:)

Biology
ok thanks so much!

Biology
What are the treatments for Miller Syndrome. A website would be nice:) Thanks!

Biology
What are 3 ways that guppy fish interect (symbiosis,mutualism etc.) please provide a website:) thanks:)

Science
I got that... disregard this post

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

Science
Do guppies live in a herd, grove, alone, pairs, or colonies? Of what size? I have been trying to find this answer but its so broad and i need a little help. If you could also post the website where you found the information the would be great! thanks:)

Stem Cell Research
Thanks so much!

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

Stem Cell Research
Hi I need to find 4 articles about stem cell research. 2 need to be ones that just support it and 2 the just oppose it. Does anyone have any link of web sites where I can find this. It can't talk about both it has to oppose or support. Also a website would be ok but if you...

Wrld Hst
What did Margaret Cavendish believe/ talk about in her book Philosophical Fancies? thanks:)

Biology
Do prokaryote cells and eukaryote calls both go through the M phase or does just eukaryote cells? Then what does prokaryote cells go through in the cell cycle? thanks:)

Wrld Hst
Why did the Spanish empire decline in the 1600's? thanks:)

biology
how do you draw tryptophan and i need to know what goes around the pentagon part etc. thanks

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

Science
What are interactions between living things in the tropical rainforest? thanks

Social Studies
Then did John come after that?

Social Studies
Then did John come after that?

Social Studies
Henry II of England

Social Studies
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

Social Studies
How does the movie The Lion in Winter relate to World History? thanks

Science
What chemicals are in curds? thanks

Science
ok thanks so much!

Science
thanks, What do you put for the hexagon?

Science
how do you draw a the amino acid Phenylalanine? thanks:)

algebra
3x????

Algebra
NeverMind!!

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