Questions Asked on
August 23, 2007

Chemistry
I have a problem that has been driving me crazy trying to solve, and I was wondering if someone could help. The problem is this: "Given the reaction: CuSO4 + 4 NH3 > Cu(NH3)4SO4, if 10 grams of CuSO4 reacts with 30 grams of NH3, what is the theoretical
asked by Josh 
CHEMISTRY
I am refreshing on bonding and structure before starting an organic chem class. I am a bit rusty on hybrid orbitals in bonding. Take Methane, CH4, I understand each carbon has an sp3 orbital that overlaps an s orbital on the H to form its 4 bonds. In a
asked by AMY 
chem
Hello, I need help solving this problem on intermolecular dispersion forces. Can you explain how I go about finding the answer? Which member of the following has the stronger intermolecular dispersion forces? a. CO CO2 neither of these b. CH3CH2CH2CH2Br
asked by manny 
algebra
1)Find the sixth term of the geometric sequence for which a1=5 and r=3 a.1215 b.3645 c.9375 d.23 answer=a 2)Write an equation for the nth term of the geometric sequence 12,4,4/3,... a.an=12(1/3)n1 b.an=12(1/3)n1 c.an=12(1/3)n+1 d.an=12(1/3)n1
asked by Marissa 
Chemistry
I have a problem that has been driving me crazy trying to solve, and I was wondering if someone could help. The problem is this: "Given the reaction: CuSO4 + 4 NH3 > Cu(NH3)4SO4, if 10 grams of CuSO4 reacts with 30 grams of NH3, what is the theoretical
asked by Josh 
algebra
1)Use Pascal's triangle to expand (wx)^5 2)Use the binomial theorem to find the third term in the expression of (n2p)^6 3)Which is NOT a counterexample to the formula 1^2+3^2+5^2+...+(2n1)^2=n(2n+1)/3 A.n=3 B.n=2 C.n=1 D.n=4 is it C thanks:)
asked by Marissa 
Chemistry
Suppose a piece of lead with a mass of 14.9 g at a temperature of 92.5 C is dropped into an insulated container of water. The mass of water is 165 g and its temperature before adding the lead is 20.0 C. What is the final temperature? I know that I have to
asked by Anonymous 
time management
As I spend more and more time working, I spend less time with family and friends. However, my career and financial success are important to me. How do I balance the time I spend making money versus time I spend with people? What are some critical questions
asked by Leo 
history
south west asia
asked by josiah 
Algebra. 1
For a snow sculpture content, snow is packed into a cubeshaped box with an edge of 8 feet. The box is frozen and removed, leaving a cube of snow. One cubic foot of snow weighs about 30 pounds. You can estimate the weight ( in pounds) of the cube using the
asked by Michael 
algebra
I'm pretty sure these are right but I just want to check. 1)Find the 20th term of the arithmetic sequence in which a1=3 and d=7 a.143 b.136 c.140 d.133 answer=b 2)Write an equation for the nth term of the arithmetic sequence 3,3,9,15... a.an=n+6 b.an=6n+9
asked by Marissa 
algebra
1)Find a1 in a geometric series for which Sn=300,r=3,and n=4 a.15 b.15/2 c.15 d.1/15 answer=a 2)Find the sum of the infinite geometric series n=1 at the bottom of the sigma notation 20(1/4)n1 on the right side a.25 b.80/3 c.16 d.does not exist answer=c
asked by Marissa 
Math
Ok I have this problem and wanted to know itf its right. If its not please let me know what I did wrong... 8X12+29x39+623=15x+2 8x+29x=37x 1239+623=14 37x+14=15x+2 22x+2 22/2 x=1/11??
asked by Tiffany 
algebra 3
how do i solve square root of 72x to the 3rd power?????
asked by david 
Chemistry labs in highschool
I was curious to know whether it was standardized practice to have labs for chemistry classes in highschool. I personally have never had labs for chemistry in highschool. In my state we have the Regents. You may or may not have heard of this test, but the
asked by ~christina~ 
Business
What are groups of occupations arranged by sector of the economy? I'm doing a crossword thing, so it starts with "C".
asked by Danni 
math
two 22.5 degree cast iron bend are offset by 3 feet 5 inches, so the diagonal that joins them must have one hub. you need to measure a 10 foot length of 3 inch pipe and cut it for the diagonal. if you measure from the extreme end of the hub, at what
asked by manny 
social studies
What is the latitude and longitude of Greenwich, England?
asked by Asia 
Critical Thinking
How can someone distinguish between the prejudicial and nonprejudicial use of rhetorical devices?
asked by Monique 
Algebra II
I don't exactly understand what needs to be done in this problem. Could someone please explain what I am supposed to be doing a bit clearer than the book? Four jobs need to be done, and four workers are available. The chart shows how long each worker takes
asked by Codie 
Algebra1
i think i have to simplify.... but the question just says: (2y3)^2 possible answers: a.4y^2+9 b.4y^26y+9 c.4y^212y+9 d.4y^2+12y+9
asked by unknown 
Geometry
I did not get this question at all, if someone could help, I would appreciate it! It says: Reword Theorem 13 as two statements, one describing existence and the other describing uniqueness. Theorem 13 says: If two lines intersect, then exactly one plane
asked by Emily 
Algebra1
if x3y=8 and y=2x+1, then x= ???
asked by unknown 
spanish
im not mexican so i don't have a spanish accent. so when im take spanish i don't say it how your suppose to. i say it like english. please help!
asked by ashley 
very simple  my face is red!
What is cheaper: $40.80 for 250 itmes? OR: $18 for 100 items? Thank you veyr much!
asked by Aderosa 
chemistry
A student measures the mass of a book as 12,321g. What is the book's mass in kg?
asked by Rachael 
Literature
I am writing report on the novel The Time Machine, by H.G. Wells. I am supposed to write when the story takes place. I have searched through the book and the internet and can't find any hints as to what time frame the young scientist lived in. Please help!
asked by Jenna 
math
in the addition problems below each leter represents the same digit in both problems. Replace each letter with a different digi, 19, so that both addition problems are true.(there are two possible answers.) A B C A D G +D E F +B E H   G H I C
asked by kenzie 
history
how did human history begin?
asked by lolita 
Math
I need help with solving this equation and the steps on how to do it? 5X919+22X38X=17+17X9+12
asked by Tiffany 
algebra/math
i know this is probably a really simple answer and i'm gonna want to hit my head on a wall after i get it, hopefully, but how would i find a unit rate and then simplify it, if possible? like, 3 pages/5 hours? like the directions just say to write as a rate
asked by bridget 
algebra 2
could someone please help me with this... Solve for F: C=5/9(F32)
asked by logan 
Algebra1
3x/4  2x/5 + x/2
asked by unknown 
algebra 2
i need help simplifyng this expression 72a^2*b^3/24a^2*b^5
asked by abdi 
Math
Is there any difference between an equation with one variable and one equation with two variables?
asked by Rindi 
Algebra1
i think i have to simplify.... but the question just says: (2y3)^2 a.4y^2+9 b.4y^26y+9 c.4y^212y+9 d.4y^2+12y+9 i got A but i wanna make sure....
asked by unknown 
Maths
A police officer gathered data on the speeds, in kilometres per hour (km/h), of some cars as they drove down hill towards her car. The speed limit is 50 km/h. Analysis of the results showed that the speeds of the cars were normally distributed with a mean
asked by kate 
Geography
I have an assignment to do comparing Thailand and Australia economically. I don't understand how the GDP, inflation, unemployment and currency rate are linked. For example if inflation is high, what is the expected GDP (low or high). Can someone please
asked by Nat 
Art... complements
Hello, My answer for the following question is #4, is that correct? Thank You When your brain automatically seeks the complements of highly saturated colors, this visual phenomenon is called #1 Simultaneous contrast #2 contrasting complementary color #3
asked by Mandi 
ETH
What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences?
asked by Anonymous 
Writing
Im doing an essay and Im going to write the name of a school. what do i put around it, quotation marks or capitalize it or underline the name?
asked by Rae 
Geometry question
In isosceles ABC, B is the vertex. The measure of angle B can be represented as (8x+2). The measure of angle A can be represented as (9x2). Find the measure of all three angles of the triangle. Be sure to name the angle with it’s measurement (ex: angle
asked by Jim 
math
insert grouping symbols into 2*3^3+4 to get it to equal 4374
asked by becca 
Romantic Era
Can anyone point me in the direction of some links about the developements in science during the Romantic Era?
asked by Kasey 
word problem
a boy gives his classmates an equal number of candy bars. he tell s his friends that if five fewer kids show up next time, they will get two more candies each. instead, four more kids show up so they get one less candy a piece instead. how many candies
asked by Lisa 
math
insert grouping symbols into 2x3^3+4 to get it to equal 4374 and 279,936.... i don't even think its possible!
asked by becca 
algebra 2
square root of 7 squared + 3...how in the world do i do that if its not a perfect square?
asked by gaby 
math
use grouping symbols to make 2x3^3+4 equal 279936
asked by becca 
IT
In this assignment, you are going to be gathering information about the future students of NSU at one of our open houses. Since there will be plenty of student candidates with interests on different programs, I would like you to create a database using
asked by Tiffany 
social studies
Where can I find a map that shows crops grown in Louisiana?
asked by Christian 
history
an ancient greek astonomer and mathematician named_________
asked by glenn 
Algebra1
which of these are equivalent? I. x>3 II. X4
asked by unknown 
algebra
x3*2x+1=8
asked by unknown 
reading log
what is the theme of John Grisham's "the rainmaker"???
asked by klar maesen 
math
I am getting difficulties by doin this homework.plzzzz can u hel pme;Solve this simultaneous equation;1/3(x+2)1/4(y1)=1,5X=4Y(B)SOLVE TO 2 DECIMAL PLACES'x15/x=12. The second number am not sure of my calcalations;The point (x,y)is transformed by the
asked by nellyna 
math/algebra
I have a question of how do I determine the variables when graphing linear equation? For an example graph x+2y=4, how do you come up with the variables as (0,2) (2,1) and (4,0)? The example in my book does not tell me how they came up with this. I know how
asked by ms jay 
science
ionisation enegy is higher than second ionisation energy which is heigher than furst ionisation energy.explain
asked by parth 
English
How do I list quotations? I want to say this: She came down with a host of apologies, among which were, "I'm so sorry for keeping you." "Mr. Nuttel, may I offer you some tea?" And, finally, "I hope Vera has made you feel welcome." Should I separate each
asked by Shelby 
Algebra I
Find the slope of any line parallel to the line through points (19,1) and (10,2). I have come up with the slope of that line which should be 1/9, but beyond that I'm lost.
asked by Katie 
Art ... Light
Hello, Flourescent lighting has a high color temperature... Correct? Thank You
asked by Mandi 
social studies
how would you a,s atest aboutusing a map?define the words cardinal direections intermediate directions relative location scale map symbol locator
asked by lakeisha 
Math
can someone please explain to me how to do place values ant the powers of ten
asked by Jeremy 
algebra 2
in absolute value i kno that a negative number then turns to positive...but wat if theres a subtraction sign is that included too? Example: (PARENTHESIS ARE THE ABSOLUTE VALUE SIGNS) (21) dont be too complicated plz and thank u!!!
asked by gaby 
International Business
WHy is acceleration or delay of payments more useful to an IC than smaller, separate companies?
asked by patti 
Math
How about this equation just simple form?? 2856137+1969+82+1699
asked by Dayana 
grammar
in the sentence Jack told me. Is me the direct object or the indirect object? I am confused b/c I could say Jack told the secret to me. TIA!
asked by Beth 
Social Studies
What is the key to understanding other societies?
asked by Anna 
please check
Please check focusing on the grammar area specified in the left column. The Sentence following the grammar area is the sentence in question. 1.Dangling Modidiers  If your baby does not like cold apple juice, it should be heated. My Answer: If your baby
asked by marie 
Environmental Science
What does DNA stand for, and what does it do?
asked by Patricia 
Algebra
5x6=4x+2 Can someone help me how to solve this problem please?
asked by Jesus 
Algebra1
(p^x)^y
asked by unknown 
algebra
x3*2x+1=8
asked by unknown 
Critical Thinking
How can a person distinguish between the prejudicial and nonprejudicial use of rhetorical devices?
asked by Sandra 
English
Is this too much of a mouthfull? “Mr. Nuttel, you may wonder why we keep that window open on such a cold October day,” she said, motioning toward a large, French window that opened on to a green, pristinely manicured lawn.
asked by Shelby 
math
plz help me to do this am not sure of my answer;th point (x,y)is transformed by the matrix(5 1) (2 1) to (19 9).find the value of x and y. as answer i got4 and 1.
asked by nellyna 
Math
Please help me How to draw the graph.
asked by subash 
Algebra I
Find the slope of any line parallel to the line through points (19,1) and (10,2). I have come up with the slope of that line which should be 1/9, but beyond that I'm lost.
asked by Katie 
algerbra 1
Define a variable and write an algebraic expression for each phrase. the diffrence of 8 and a number the product of 2 and a number
asked by dillon