Monday
September 22, 2014

Posts by Anna


Total # Posts: 1,966

Spanish
Thank you so much! I have a PC. Sorry I didn't have the accents but I don't know how to do them on the computer. :(
November 17, 2008

Spanish
Okay that's all of them Sra. If it is possible can you please check my work and help me figure out the words I did not know?
November 17, 2008

Spanish
I tried and failed miserably. I have no idea whether to use preterite or imperfect but I can send you what I attempted. 1. Eran las tres cuando ella levanto para empezar el dia. 2. Mientras Philip fried (I don't know the word for fried) las papas en aceite, Elena paso la ...
November 17, 2008

Spanish
Can you please help me translate these sentences using preterite vs. imperfect? 1. It was three o'clock when she got up to start the day. 2. While Philip fried the potatoes in oil, Elena vaccumed the living room. 3. Before leaving, I turned off the lights and closed the ...
November 17, 2008

8th grade science
ya so Get over the Fact u cant get a life drop out of school.
November 17, 2008

Chem
81. Formic acid HCHO2, is a convenient source of small quantities of carbon monoxide. When warmed with sulfuric acid, formic acid decomposes to give CO gas. HCHO2(l) -> H2O(l) + CO(g) If 3.85 L of carbon monoxide was collected over water at 25 degrees C and 689 mmHg, how ...
November 16, 2008

AP Chem
Phosphorus pentachloride is a white solid that sublimes (vaporizes without melting) at about 100 degrees C. At higher temperatures, the PCl5 vapor decomposes to give phosphorus trichloride and chlorine. How could gas-density measurements help to establish that PCl5 vapor is ...
November 16, 2008

AP Chem
Ammonium Chloride is a white solid. When heated to 325 degrees C, it gives a vapor that is a mixture of ammonia and hydrogen chloride. Suppose someone contends that the vapor consists of NH4Cl molecules rather than a mixture of NH3 and HCl. Could you decide between these ...
November 16, 2008

AP Chem
Phosphorus pentachloride is a white solid that sublimes (vaporizes without melting) at about 100 degrees C. At higher temperatures, the PCl5 vapor decomposes to give phosphorus trichloride and chlorine. How could gas-density measurements help to establish that PCl5 vapor is ...
November 15, 2008

AP Chem
Ammonium Chloride is a white solid. When heated to 325 degrees C, it gives a vapor that is a mixture of ammonia and hydrogen chloride. Suppose someone contends that the vapor consists of NH4Cl molecules rather than a mixture of NH3 and HCl. Could you decide between these ...
November 15, 2008

AP Chem
Help with these two please. 105. A radioactive metal atom decays (goes to another kind of atom) by emitting an alpha particle (He+2 ion). The alpha particles are collected as helium gas. A sample of helium with a volume of 12.05 mL was obtained at 765 mmHg and 23 Degrees C. ...
November 12, 2008

AP Chem
I thought that you always had to use atm in the equations.
November 12, 2008

AP Chem
Can someone please check these problems? 34. You fill a balloon with helium gas to a volume of 2.68 L at 23 degrees C and 789 mmHg. Now you release the balloon. What would be the volume of helium if its pressure changes to 632 mmHg but the temperature is unchanged? 3.35 L 38. ...
November 12, 2008

Math
I think it would be 28/100. Because if 72/100 is used for work then the rest of that would be 100-72 which is 28. And percents are over 100.
November 12, 2008

Chem
Can someone check these homework answers please? 32. The barometric pressure measured outside an airplane at 9 km was 259 mmHg. Calculate the pressure in kPa. 34.5 kPa 36. A diving bell is a container open at the bottom. As the bell descends, the water level inside changes so ...
November 11, 2008

Biology
One of the structures a cell uses to live,grow,and reproduce
November 11, 2008

Investments/Portfolio Mgt
How would the following be solved... Consider a risky portfolio. The end-of-year cash flow derived from the portfolio will be either $50,000 or $150,000, with equal probabilities of 0.5. The alternative riskless investment in T-bills pays 5%. a. If you require a risk premium ...
November 10, 2008

History- The Constitution
How does the elastic clause keep the Constitution "alive"? Give two examples of checks and balances.
November 9, 2008

chem
thank you
November 9, 2008

chem
What is the relationship between kPa and atm when dealing with measurements of pressure of a gas?
November 9, 2008

chem
A vessel containing 39.5 cm^3 of helium gas at 25 degrees celsius and 106 kPa was inverted and placed in cold ethanol. As the gas contracted, ethanol was forced into the vessel to maintain the same pressure of helium. If tihs required 7.7 cm^3 of ethanol, what was the final ...
November 9, 2008

AP Chem
ooh ok that explains it lol thanks =]
November 9, 2008

AP Chem
I did that and got -22.7. 1st of all the answer is supposed to be .65 L 2nd of all where does the negative go?
November 9, 2008

AP Chem
Helium gas, He, at 22 degrees C and 1.00 atm occupied a vessel whose volume was 2.54 L. What volume would this gas occupy if it were cooled to liquid-nitrogen temperature (-197 degrees celcius). What is the equation?
November 9, 2008

other
i have four legs but can stand on one, i come out in the daylight but not in the sun. i have two sisters who our in power, my grandmother looks like a natural flower. some say im old but i feel like new, i stick to the bottom of your shoe! what am i?
November 5, 2008

Essay
I wrote an essay of examples on how cosmetics produce a flawless face. The title I came up with is Fixing Feminine Features. I don't know if I like it of not, but I wanted to do something that caught attention. Any tips?
November 4, 2008

AP Chem
A sample of H2 is collected by displacing 145 mL of water. The pressures of the gas and the atmosphere are equalized. The atmospheric pressure is 745 mmHg. The temperature of the water and gas are identical at 26 degrees C. How many moles of H2 have been evolved?
November 4, 2008

AP Chem
A solution of hydrogen peroxide, H2O2, is titrated with a solution of potassium permanganate, KMnO4. It requires 51.7 mL of 0.145 M KMnO4 to titrate 20.0 g of the solution of hydrogen peroxide. What is the mass percentage of H2O2 in the solution? If you want the whole equation...
November 3, 2008

AP Chem
Thanks for walkin me through that one =]. It helped a lot with the other problems like that too.
November 3, 2008

AP Chem
A chemist added an excess of sodium sulfate to a solution of a soluble barium compound to precipitate all of the barium ion as barium sulfate, BaSO4. How many grams of barium ion are in a 458-mg sample of the barium compound if a solution of the sample gave 513 mg BaSO4 ...
November 3, 2008

PIGSKIN GEOGRAPHY
WHAT KIND OF GRAINS ARE IN CEREAL BESIDES CORN, WHEAT, AND OATS?
November 3, 2008

AP Chem
I divided by 111.1. Our teacher likes us to use 3 digits when using atomic weight.
November 3, 2008

AP Chem
Oh wait, is this one like the last one I asked for? I didn't work that one out yet.
November 3, 2008

AP Chem
An aqueous solution contains 4.50 g of calcium chloride, CaCl2, per liter. What is the molarity of CaCl2? When calcium chloride dissolves in water, the calcium ions, Ca^+2, and chloride ions, Cl^-, in the crystal go into the solution. What is the molar concentration of each ...
November 3, 2008

AP Chem
A 3.50 g sample of KCl is dissolved in 10.0 mL of water. The resulting solution is then added to 60.0 mL of a 0.500 M CaCl2(aq) solution. Assuming that the volumes are additive, calculate the concentrations of each ion present in the final solution. *confused*
November 3, 2008

AP Chem
Yes, thank you. I was trying to do the equation like it was a carbonate that produced carbon dioxide, not as an acid.
November 3, 2008

AP Chem
Complete and balance each of the following molecular equations, including phase labels, if a reaction occurs. Then write the net ionic equation. If no reaction occurs, write NR after the arrow. H2CO3(aq)+Sr(OH)2(aq) -> this is what I put but I think its wrong H2CO3(aq)+Sr(...
November 3, 2008

Square Root Help!!! Urgent:)
1. 4 times squareroot 10 2. 3 times squareroot 11 3. 13 4. 2 times squareroot 3
November 3, 2008

algebra
how would you factor 25z^2 + 16
November 3, 2008

Math
subtract .2b from both sides. 0.3b + 3.4 = 12.4 subtract 3.4 from both sides 0.3b = 9.0 divide both sides by 0.3 b= 30
November 3, 2008

trig
what is the inverse tangent of (rad3/3)?
November 1, 2008

trig
inverse cos (-rad2/2)=135 degrees inverse sin (-rad2/2)=-45 degrees I dont understand why cos is 135
November 1, 2008

Math
d
October 26, 2008

chem
calculate the longest wavelength visible to the human eye
October 20, 2008

Essay
oh yeah i know they arent sentences. they are just ideas for the sentences. but they have to be in inverted order and i need a topic broader than giving back to the community.
October 19, 2008

Essay
i'm writing an inverted intro paragraph and these are the sentences i have so far. 1. ? 2. giving back to the community 3. community service 4. the youth volunteering 5. benefits of youth volunteering for commuity service can anyone think of a beginning sentence or make ...
October 19, 2008

phsical education
i need a lot of help lets just say that my gym teacher is making my class take health so i have a huge asignment due on monday i need 101 ways to be healthy they can be physical, emotional, mental,social, intellectual, and spiritual Good Luck (i know i tryed) -ANNA-
October 15, 2008

Physics
Someone posted the question below, stating that they knew the answer to part A but needed help with part B. Well even with the answer for A, I can't figure it out! Can you take a step back from the question below to show me the steps for solving part A? I've been ...
October 14, 2008

7th grade
WOULDNT THE TOTAL BE $3.60
October 14, 2008

physiology
as ___________increases, the two-point threshold decreases a.receptor # b.receptor density (i think its this one) c.receptor sensitivity d.receptor sensation
October 14, 2008

physiology
Bleaching induces conformational changes in both retinene and the associated opsin. T or F I don't understand this bleaching process
October 14, 2008

physiology
neurotransmitter release would be inhibited by a.stimulating repolarization of the axon terminal b.blocking Ca2+ influx in the axon terminal c.blocking repolarization of the axon terminal d.stimulating protein kinase activity I think its b, but not sure
October 12, 2008

physiology
what percent of blood flow to the body per minute goes to the brain ? 10, 20, 25, or 30% ?
October 12, 2008

physiology
the blood-brain barrier prevents hydrophobic molecules from diffusing into the brain. T or F Excitable cells are incapable of maintaining a constant resting membrane potential. T or F The membrane of resting nerve cells is more permeable to______ions than _________ions. a....
October 12, 2008

social studies
How do monopolies threaten the free enterprise system?
October 8, 2008

Consumer math
How to Compute percent of change in cost: Item:1 lb.apples price in 1970: 0.25 what is the Present price and what is the percent of change?
October 8, 2008

geography
Geography of Greece. How did it affect the people living in the region?
October 7, 2008

government
What is the newest government agency formed just earlier this week?
October 7, 2008

Spanish
linda--pretty princesa--princess reina--queen mi amor--my love
October 7, 2008

spanish
son las tres menos quince en punto.
October 7, 2008

science
OK,the question is what three statements that define all living things in terms of a cell? crossword puzzle! Anna
October 7, 2008

college - visual arts
R u doin it on a computer hi
October 7, 2008

AP Chem
Calculate the number of atoms in 32.0 g Br2. I keep getting 1.20 * 10^23 atoms Br2 but my book says i'm wrong.
October 5, 2008

math
3/5.37 = 8/14.32
October 5, 2008

AP Chem
but don't i have to know the formula for ethylene glycol?
October 5, 2008

AP Chem
Combustion of 6.38 mg of ethylene glycol gives 9.06 mg CO2 and 5.58 mg H20. The compound contains only C, H, and O. What are the mass percentages of the elements in ethylene glycol?
October 5, 2008

English: what's the formal term for...?
suspense?
October 5, 2008

Math
A book has n consecutive pages torn out (each paper in a book has two sides - each side is one page). Suppose A is the last numbered page before the torn out section and B is the first numbered page following the torn-out section. Find a formula for n in terms of A and B.
September 22, 2008

Science
did that help
September 22, 2008

Science
It would be a physical change because wjat it is made out of stays the same.
September 22, 2008

Math
Will a parabola intersect its directrix sometimes, always, or never?
September 22, 2008

Math
What is the length of the latus rectum of x^2=20y X squared equals twenty Y
September 22, 2008

Math
Find the equation of the parabola with directix y=3 and focus (5,7)?
September 22, 2008

math
10.9186
September 22, 2008

English
Can someone please proof read this? In A Raisin in the Sun, Lena Younger is the nurturing, ethical character who keeps the Younger family in line. First of all, Lena is a caring mother. For instance, when Walter runs away from his family because no one will listen to his ...
September 21, 2008

math
On the plant ZOG,colored coins are used formoney. Suppose 12 white, 9 red, 8 yellow, 4 blue, and 0 green can be exchanged for 2 white, 1 red, 0 yellow, 1 blue ,and 1 green. Also, suppose 1 green = N blue, 1 blue = N yellow, 1 yellow = N red, and 1 red = N white coins. What is ...
September 16, 2008

Chemistry Honors
well put
September 16, 2008

Language Arts
comprehend, curled up, fear
September 16, 2008

math
Given an infinte geometric series, with S=14 and the first term 9, find the ratio between terms.
September 16, 2008

math
1) 13 and -13 2) 5 and -5 I think I could be wrong
September 16, 2008

science
you need to change mL to grams and use conversions
September 16, 2008

Economics
This is what I came up with from my chapter reading, but this subject is confusing me. There is not a direct relationship between Gross Domestic Product and the economic well being. There may be a correlation in some instances, however high Gross Domestic Product does not ...
September 15, 2008

Economics
What is the relationship between the level of Gross Domestic Product and economic well-being. What factors of well-being are missing from the Gross Domestic Product? Is there a point where the Gross Domestic Product could increase to such a high level that economic well-being ...
September 15, 2008

Math- Algebra
The function C(x)=4x+850 closely approximates the cost of daily production run of x picture frames. The number of picture frames produced is represented by the function x(t)=90t, where t is the time in hours since the beginning of the production run. now here's where I ...
September 11, 2008

English
Is this a good topic sentence for a paragraph? In A Raisin in the Sun, Lena Younger is the nurturing, morale character who keeps the Younger family in line and earns your respect in the story.
September 10, 2008

Chemistry
what is the formula to change the temperature of K to C
September 10, 2008

P.E
What are the olympic ideals?
September 10, 2008

Math
For the equation y + 2 = -3/2(x-6) Identify the point found in the equation. Help?? what point are they talking about? =/
September 4, 2008

math
set it up like 75/750=x/100 cross multiply to get 750x=7500 x=10 therefore 10% of the parts were faulty
September 3, 2008

exponets
(12*2)=24 42-13=29 29+24 = 53
September 3, 2008

Math
18/6+3 is equal to 2 because 6+3=9 therefore, 18/9=2 no remainder in this problem.
September 3, 2008

Math
explain why the equation x^2 + y^2=1 does not define y as a function of x.
September 3, 2008

Math
what is the domain, range, and zeros of: f(x)=|x| and h(x)=|x|-2 ?? thank you!
September 3, 2008

math
1 miles = 1.609344 kilometers 55 X 1.609344 = 88.51392 km
September 3, 2008

Brookwood
A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is required to slide the ...
September 2, 2008

social studies
what was the name of the food that thomas jefferson returned to the u.s from france
August 30, 2008

American History
What was it about post-1763 British policy that would cause colonists in every section to see the disadvantages rather than the advantages of being part of the British empire? any help will be truly appreciated!!
August 22, 2008

Math
Help needed! round 1.16 to the nearest tenth
July 9, 2008

spanish
Pico la cebolla? No, no la piques picas pica piqué Please help me- these will not translate
June 4, 2008

Spanish
tuya for the first and ducho for the second?
June 2, 2008

Pages: <<Prev | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | Next>>

Search
Members