# Amy~

Popular questions and responses by Amy~-
## Chemistry

What would be the steps to solving this problem? The aluminum sulfate hydrate [Al2(SO4)3 (times) xH2O] contains 8.20 % Al by mass. Calculate x, that is , the number of water molecules associated with each Al2(SO4)3 unit.

*asked on August 26, 2010* -
## Chemistry Balancing

K3PO4(aq) + 3Sr(NO3)2 ==> Sr3(PO4)2 + K2(NO3) the reactant was given. I can't seem to balance this. whenever everything is even either the 3Sr(NO3)2 or K2(NO3) is not balanced. Also, the 3Sr in 3Sr(NO3)2 was already there.

*asked on September 8, 2010* -
## Chemistry

The mass % of H in methane (CH4) is ? How would i solve this?

*asked on August 30, 2010* -
## Chemistry Check

Which one of the following substances is the product of this combination reaction? Al(s) + I2(s) => ______ For this it would be AlI3 ?

*asked on August 30, 2010* -
## Chemistry

The steps to getting the answer. A certain metal oxide has the formula MO where M denotes the metal. A 39.46g sample of the compound is strongly heated in an atmosphere of hydrogen to remove oxygen as water molecules. At the end, 31.70g of the metal is

*asked on August 26, 2010* -
## Chemistry

A mixture of methane (CH4) and ethane (C2H6) of mass 13.43g is completely burned in oxygen. If the total mass of CO2 and H2O produced is 64.84 g, calculate the fraction of CH4 in the mixture. CH4 + C2H6 arrow CO2 + H2O 13.43g 64.84g Would I do

*asked on August 27, 2010* -
## Math Word Problem

Cashews sell for $4.00 per pound and peanuts for $1.50 per pound. The peanuts didn't sell well, so in order to sell 60 lbs of peanuts the manager decided to mix 60 lbs of peanuts w/ cashews and sell the mixture for $2.50 per pound. How many lbs cashews

*asked on September 12, 2010* -
## Chemistry

How to solve this: One isotope of a metallic element has mass # of 65 and 35 neutrons in nucleus. The cation derived from the isotope has 28 electrons. Write the symbol for this cation. Would the symbol be Cu? because Atomic # = protons = electrons and

*asked on August 24, 2010* -
## Math Word Problem

In an NFL football game, the Bears scored a total of 41 poionts, including one safety (2 points) and two field goals (3 points each). After scoring a touchdown (6 points), a team is given the chance to score 1 or 2 extra points. The Bears, in trying to

*asked on September 19, 2010* -
## Chemistry

Lysine, an essential amino acid in the human body, contains C,H,O, and N. In one experiment, the complete combustion of 2.175g of lysine gave 3.94g CO2 and 1.89g H2O. In a separate experiment, 1.873 g of lysine gave 0.436 g NH3. (a) Calculate the empirical

*asked on August 27, 2010* -
## Chemistry

How would I solve this: The atomic mass of 6/3Li and 7/3Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the natural abundances of these 2 isotopes. The average atomic mass of Li is 6.941. All I know is how to get the atomic mass and not the

*asked on August 25, 2010* -
## Chemistry

Record the amount of heat needed to change phases for water-ice to steam using graphical analysis. Is there a one accurate amount of heat needed to change phases, I thought it varied depending the problem... Would the question be asking for the heat needed

*asked on June 10, 2010* -
## Math

which mountains peaks can be seen from Oahu. Island Distance(Mi) Mountain Height(ft) Molokai - 40 - Kamakou - 4,961 A) Radius of earth= 3960 mi. Determine angle formed at the center of the earth. B) Determine length of the hypotenuse. Could someone go

*asked on May 25, 2011* -
## Math

A real estate agent to sell a large apartment complex according to the following commission schedule: $45,000 plus 25% of the selling price in excess of $900,000. Assuming that the complex will sell at some price between $900,000 and $1,100,000, inclusive,

*asked on September 21, 2010* -
## Math

In a game, the Bulls score a total of 103 points and made three times as many field goals (2 points each) as free throws (1 point each). They also made eleven 3 points. How many goals did they have? 103=3(2)+ 1 + 11(3) would this equation be right?

*asked on September 17, 2010* -
## Math

I have to write < , >, or = for the ? sqrt 2 ? 1.41 sqrt 2 = 1.41421356237... Would it be sqrt 2 > 1.41

*asked on September 4, 2010* -
## Chemistry.

In which of these compounds is the oxidation state of CI the highest? a) HCIO2 e) HCIO4 Answer is e Is there a formula to solve this ?

*asked on August 29, 2010* -
## Chemistry

In water conservation, chemists spread a thin film of certain inert material over the surface of water to cut down the rate of evaporation of water in reservoirs. Franklin found that 0.10 mL of oil could spread over the surface of water of about 49 m

*asked on August 24, 2010* -
## History

What is the treaty of Paris that the US signed with Spain? Please type an answer and not a website. Thanks

*asked on May 31, 2010* -
## Math

This is another application that I didn't understand A blimp, suspended in the air at a height of 500 ft, lies directly over a line from Soldier Field to the Planetarium on Lake Michigan. If the angle of depression from the blimp to the stadium is 32

*asked on May 17, 2011* -
## Math

At 10 am on April 26, 1998, a building 300 feet high casts a shadow 50 feet long. What is the angle of elevation of the Sun

*asked on May 15, 2011* -
## Precalc

(2^(x))(5)=10^(x) steps too please how to solve

*asked on February 2, 2011* -
## Precalc

chande into a single logarithm (1/2)ln(x^(2)+1)-4ln(1/2)-((1/2)[ln(x-4)+lnx] ) steps to please

*asked on February 2, 2011* -
## Precalc

how to write each expression into a single logarithm. ln(x-1/x) + ln(x/x+1) - ln((x^(2)-1)) the answer is: -2ln(x+1) steps please i tried solving this but ended up getting this long expression

*asked on February 2, 2011* -
## Precalc

how to write each expression into a single logarithm. 3log[4]x^(2) + (1/2)log[4]ã(x) the answer is: (25/4)log[4]x steps please

*asked on February 2, 2011* -
## Debug=true

The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: 1. Add a "Debug=true" directive at the top of the file that generated the

*asked on January 13, 2011* -
## English

In the Minister's Black Veil by Nathaniel Hawthrone. What reasons does Hooper give for not wanting to remove his veil? I came up with one reason: that there is a Black Veil on everyone But what will the other reasons be? "Why do you tremble at me alone?"

*asked on October 3, 2010* -
## Math Graphing

x^3 < 3x^2 would become x(x^2-3x) then how would I graph this?

*asked on September 26, 2010* -
## History

The U.S. Treasury department can also be known as the government? like in a more broader sense.

*asked on September 20, 2010* -
## Math

The final exam will count as two tests. Brooke has test scores of 80, 83, 71,61 and 95. What score does Brooke need on the final in order to have an 80? I thought 80+83+71+61+95 = 390 / 5 = 78 then I don't know what to do next. Although I did do 78 +2x =

*asked on September 19, 2010* -
## Math

If Sandy usually earns $88 plus 11% sales each week. What if she earns $154 one week. What is the % sales she earned that week when she earned $154? Would the answer be 600?

*asked on September 16, 2010* -
## Math Word Problem

a new blend of coffee will cost $3.90 per pound by mixing 2 coffees that sell for $2.75 and $5 per pound. what amounts of each coffee should be blended to obtain the desired mixture? (the total weight of the desired blend is 100 lbs) How would I solve

*asked on September 12, 2010* -
## Chemistry: Solubility ?

There are solubility rules and for soluble compounds some have exceptions next to them. Such as Halides are soluble Exception: Ag, Hg, Pb What does it mean by exception? For Halides would it be, that if the compound was AgCI it wouldn't be soluble?

*asked on September 8, 2010* -
## Chemistry

There was this problem on a test that I took recently. But, I never learned how to solve this. The problem was: it gave the mass of a certain compound and stated that it had 92% carbon. then it asked for the theortical yield of Carbon.

*asked on September 5, 2010* -
## Chemistry

The average mass of a solid copper penny is 2.63 g . What is the mass of one mole of pennies? How would I solve this?

*asked on August 29, 2010* -
## Chemistry

For Peroxyacyl nitrate (PAN) A compound of C,H,N,O Determine the empirical formula from the percent composition by mass: 19.8% C, 2.50% H, 11.6% N What is its molecular formula given that its molar mass is about 120g?

*asked on August 25, 2010* -
## US History II

For Alexander Hamilton v. Thomas Jefferson was the conflict about the Presidency, and Hamilton's and Jefferson's plans? Like Loose v. Strict Constitution?

*asked on August 6, 2010* -
## Computer

Does anyone know of a website where I could ask computer problems for free? I just tried asking on this one website, but it wanted me to pay... Thanks

*asked on June 21, 2010* -
## Computer Question

Does anyone know where I can remove the memory card? from a computer? I tried looking it up but all I get is those memory cards for cameras... I'm not sure what it is, except that it contains computer memory. Also, I remember someone saying that I need to

*asked on June 21, 2010* -
## History

During March 10, 1935 did Hitler just test the strength of the Treaty of Versailles. Then during March 16, 1935 does Hitler introduce a compulsory military service. Then does in renounce the Treaty of Versailles on March 16 DOES this cause war...? During

*asked on June 9, 2010* -
## Calculator Help

Is there a difference between TI-89 Titanium calculator and TI-83 calculator? Because I'm taking a final exam and my teacher will only allow us to use a TI-83 calculator and I've never used it... like for putting in the parentheses with the log when

*asked on June 2, 2010* -
## English

is this sentence correct: He was deprived of his money.

*asked on June 5, 2011* -
## Math

If the radius of a circle is 3960 the angle is 1.59 the arc length is 110 how would I find the hypotenuse? I think it is 3960/cos1.59 but I know that you just don't automatically know that wouldn't it start out as cos1.59 = A/H (adjacent/ Hypotenuse) Could

*asked on May 25, 2011* -
## Math

Given info: arc length = 65 m formula for arc length: s=rø s = 2pi r radius of circle: 2300 m so to find the angle would I put in 2pi(2300)= rounded to 14451 Then would I multiply: 65(360/14451) if that is right, why would I divide by 360 and multiply by

*asked on May 24, 2011* -
## Math

I tried to solve this but can't seem to find a procedure to solve this: To measure the height of Lincoln's caricature on Mt. Rushmore, two sightings 800 feet from the base of the mountain are of Lincoln's face is 32 degrees and the angle of elevation to

*asked on May 17, 2011* -
## Math

tan 46.27 = x / (y+100) could someone change this to y = ? I tried it but got stuck after the first step of moving y+100 over to tan... steps too please

*asked on May 15, 2011* -
## SAT

For the SAT online course, when I was going o buy it, they asked for shipping information, so I'm confused... are they going to send me a book on the online course where afterwards I can use the online course...?

*asked on May 8, 2011* -
## math please help

Inverse Trigonometric Functions please explain this to me in mathematical steps please how to solve sin^(-1) (-1/2) this equals - pi/6 i know that sin^(-1) domain and range switch from original sin but i don't know how to apply that... i need an

*asked on April 14, 2011* -
## Documents

What does it mean by Enclosed Documents? documents that I am going to send or that are required

*asked on January 13, 2011* -
## History

What are 3 factors that made Congress pass the Immigration Act of 1924? - racism can't think of the other two.

*asked on October 11, 2010* -
## Spanish

would this be right: ir a tuvimos

*asked on October 4, 2010* -
## Spanish

For the stem-changing verbs in the present tense I wouldn't have to do anything to those verbs in the preterite tense except changing the endings?

*asked on October 4, 2010* -
## Spanish

If "te (verb)" is in the present tense how would I change this to the preterite tense ? Would I leave it as " te (verb)" and only change the verb to a preterite would this be the same for "lo (verb)"?

*asked on October 4, 2010* -
## Algebra

How to solve this x(1+x)=2 Find all the real solutions I can't remember how to solve this... the answers are -2, 1 I think...

*asked on October 3, 2010* -
## English

I can't think of a word to describe the reaction from the townspeople? Their gossiping about the Rev... Suprised... I'm stuck -A Rev comes to town and the next day the whole town talks about the Rev

*asked on October 2, 2010* -
## Math Help !

For this x^(4) < x becomes x^(4) - x < 0 becomes x(x^(3)-1)

*asked on September 29, 2010* -
## Math

I don't get when you use "or" or "and" in inequalities. Like for this quadratic inequality: x^(2) +x -12 > 0 becomes x < -4 x > 3 why is the answer {x|x3} and not {x|3

*asked on September 29, 2010* -
## English

I don't get what is ironic about this phrase from The Minister's Black Veil: "How strange that a simple black veil such as any woman might wear on her bonnet, should become such a terrible thing on Mr. Hooper's face" ? Is it because their all hiding behing

*asked on September 29, 2010* -
## Re: Math

The only inequalities where I have to check the values between the points are polynomial and rational inequalities, right? And not any other type of inequalites By Checking I mean to know which way to shade on a graph Just making sure

*asked on September 28, 2010* -
## Math

For this inequality 3x^(2) - 2x -1 > or equal 0 I get x=1 , x=-1/3 would the solution set become {x|1 < x < -1/3} I wasn't sure about the sign, if it should be greater than or equal to .

*asked on September 28, 2010* -
## Math Check

The only inequalities where I have to check the values between the points are polynomial and rational inequalities, right? And not any other type of inequalites By Checking I mean to know which way to shade on a graph Just making sure

*asked on September 28, 2010* -
## Health: Sodium

Having a lot of sodium in a chewy bar is bad but what about having 0.125g sodium is this also bad?

*asked on September 27, 2010* -
## Spanish Check

is this right? No es practica mirar television son doce horas por dia. Means: It's not practical to watch television twelve hours a day. Also it "mis padres" right?

*asked on September 27, 2010* -
## Math

How to solve this (2x+5)/(x+1) > (x+1)/(x-1) and graph? I tried this and got (x+3)(x-2) and got -32 which isn't right the right answer is x

*asked on September 27, 2010* -
## Precalc

How to solve this inequality and graph? (2x+5)/(x+1) > (x+1)/(x-1) would I first get rid of x-1 and divide x+1 over to get (2x+5)(x-1)/(x+1)(x+1) > 0 if so, then who would I graph this?

*asked on September 24, 2010* -
## Math

% of Paupers Native: 51.6 Foreign: 39.3 % of Population Native: 74.5 Foreign: 13.4 How much higher was the proportion of paupers in the foreign? How to get the answer?

*asked on September 22, 2010* -
## English

For the Richard Cory poem: 1) What is the denotation of "crown" in this use? "sole to crown" -- Would it be that they thought him to be a king?

*asked on September 21, 2010* -
## Math

How to solve this: ((x-3)(x+2))/((x-1)) < 0 I don't understand since theres x-1 in the denominator

*asked on September 21, 2010* -
## Math: Inequalities

for this inequality: (x-1)(x-2)(x-3)

*asked on September 21, 2010* -
## Math: Inequalities

How would I solve this inequality and graph? (x+2)((x^(2)-x+1)) > 0 I got x > -2 and x^(2)-x+1 > 0 How would I graph x^(2)-x+1 > 0 because I can't factor it.

*asked on September 21, 2010* -
## History

Could someone explain what social, economic, and political issues are? Social- would be among the people? Economic- Political- issues that have to do w/ gov?

*asked on September 20, 2010* -
## English: Quotes

What if there's a quote inside a quote would I use this " ...'...'" and also what if I wanted to add something in my own words in between the quote would I end the quote then write my thought and then start a new quote OR would I use [...] in between the

*asked on September 20, 2010* -
## History

When US entered WWI, what century would that be? 20th century?

*asked on September 20, 2010* -
## US History

Could Patriotism and propaganda posters be considered two different effects of US in WWI? At first I thought sure, but than the posters did cause patriotism so...

*asked on September 20, 2010* -
## US History: WWI

Why would this poster "Joan of Arc Saved France: Women of America, Save Your Country/Buy War Savings Stamps," if a propaganda poster? I don't understand. It's not misleading information.

*asked on September 20, 2010* -
## English: Puritans

The question is: Why could Winthrop's ideal not be achieved? The paragraph where I have to find the answer: Winthrop describes an ideal society, which, if the Puritans had been able to achieve it, would have been a reasonable facsimile of paradise on

*asked on September 19, 2010* -
## Math

Going into the final exam which will count as two-thirds of the final grade, Mike has test scores of 86,80,84,and 90. What score does he need on the final to earn an average score of 80? Is this right: (86+80+84+90)/4 = 80 2/3x(85)= 80 or

*asked on September 17, 2010* -
## Math

Perimeter is 60 ft. Find length and width if length is 8 ft longer than the width. Would it be 60=(8+l)+w I don't know where to put the 8 But there's two variables how would I find both l and w

*asked on September 17, 2010* -
## English

I'm confused about the meaning of this sentence: The typical family is three or four children; the latter among the 8 to 12 children that will be born into the family during the lives of the parents. So I get confused where it says "the latter" Does this

*asked on September 15, 2010* -
## US History

I don't understand what the difference was between the Lodge reservation and the Hitchcock reservation. Both reservations seem to be similar. I have to find a difference.

*asked on September 14, 2010* -
## Spanish: translation

I'm not sure how I should translate the english sentences/questions into spanish: 1) What did they bring? - Que lo trajeron? 2) What did she say? - Que se(or te) dijo? 3) Did you read the newspaper? - Tu leiste el periodico? I'm not sure if they're right.

*asked on September 12, 2010* -
## Spanish

For this what am I supposed to do? Traduzca Vd. al espanol las expresiones en ingles. 1. Nosotros walked por las calles de la ciudad. Do I just change the english verb to spanish ? OR do I translate the whole sentence into english?

*asked on September 12, 2010* -
## Spanish

For this question: Hizo Vd. el trabajo para hoy? my answer: Si, hizo el trabajo para hoy. Is the answer written correctly? At first I thought hice but the question doesn't use hiciste so...

*asked on September 12, 2010* -
## Spanish

For the verb componer in the present tu form is Compone. But in the preterito it's compuso. Is the ending -puso because the verb as poner in it which is irregular? Also, would this be the case for all verbs that have endings that are irregular?

*asked on September 12, 2010* -
## Math Word Problem

2) After 2 years, Betsy finds she now will require $7,000 per year. The remaining info is the same. How should the money be reinvested? Same info: 1) Betsy requires $6000 per year in extra income. She has $50,000 to invest and can invest in bonds paying

*asked on September 12, 2010* -
## Spanish

How would I say: He is not tall or short? No, El es alto o bajo?

*asked on September 9, 2010* -
## Spanish

How would I write: I have known her for 5 years? Hace conozco cinco anos?

*asked on September 9, 2010* -
## Chemistry: Compound

1) ZnSO4 would it be Zn(SO4) does the polyatomic ion always have to have ( ) ? 2) Is Ba(SO4) right? since Ba is 2+ and SO4 is 2- right? 3) In a net ionic equation for BaCI2 would it become Ba ^(2+) + 2CI or Ba ^(2+) + CI2 ?

*asked on September 8, 2010* -
## Math: Word Problem

A ball is thrown upward from the top of a building which is 96ft tall w/ Initial velocity of 80 ft per sec. Distance s(ft) of ball from the ground after t sec is s=96+80t-16t^(2) 1) how many sec. will the ball pass the top of the building when it is coming

*asked on September 7, 2010* -
## Algebra

(8w+5)/(10w-7) = (4w-3)/(5w+7) How would I solve this?

*asked on September 7, 2010* -
## Algebra

Isn't there a way to solve this (x+7)(x-1)= (x+1)(x+1) like, making both sides have the same denominator ?

*asked on September 7, 2010* -
## Geometry

How would I find the missing side of an obtuse triangle? Using the pythagorean theorem ?

*asked on September 5, 2010* -
## Math

Which major should Derrick pick based on the starting salary? Business: Mean: $39,000 Median: $30,000 Range: $20,000 Engineering: Mean: $35,000 Median: $34,000 Range: $12,000 Could someone explain why it would be a certain major? I don't know: I thought

*asked on September 5, 2010* -
## Math Geometry

there are 2 pentagons the small pentagon has a side that is 3cm while the side on the other larger pentagon is 8cm. the small pentagon has a side x cm while the same side on the larger pentagon is 5cm. would i set up a proportion 3/x = 8/5

*asked on September 5, 2010* -
## Math

x = 3 -2x^(2) / (1/3)^(-x) how to solve? would I multiply 3(-2) than square? Also, when I move (1/3)^(-3) to the numerator would it become (3)^3

*asked on September 5, 2010* -
## Math

triangle PQR is translated 3 units ot the right and reflected over the line y=-1. The result is triangle P'Q'R'. Which is NOT true? 1) PQ = P'Q' 2)PQ/RQ = P'Q'/R'Q' 3)PQ + QR greater than or equal to R'P' 4)m angle P + m angle Q is greater than or equal to

*asked on September 5, 2010* -
## Math

there is $175,000 to award. If the money is awarded to 4 students in a ratio of 1 to 2 to 3 to 4, how much will the largest award be? How would I solve this ?

*asked on September 5, 2010* -
## Math: Geometry/Algebra?

A construction company needs to build thirty trusses for the roof of a house. The truss is 20 ft long on the top two sides. What is the bottom length of the truss? the options for this answer were: a)30ft b)40ft c)50ft d)60ft When I solved this, I got 28.3

*asked on September 5, 2010* -
## Math

find the value of line x - y line if x = 2 , y = -3 I got 5

*asked on September 4, 2010* -
## Chemistry

I have a test tommorow and I forgot how to do this: Caculate mass of Cr in 548g of K2Cr2O7. I remember putting 548g K2Cr2O7 (1 mol K2Cr2O7/294.2 g K2Cr2O7) then from there I forgot. I got 96.85 g Cr but that does not seem right. Could someone please tell

*asked on September 2, 2010*