Questions Asked on
September 3, 2008

Chemistry
Balance the following redox equations. All occur in Acidic solutions. 1. Cr2O7^2^ + C2O4^2^ > Cr^3+^ + CO2 2. Cu + NO3^^ > CU^2+^ + NO 3. MnO2+ HNO2 > Mn^2+^ + NO3^^ 4. PbO2 + Mn^2+^ + SO4^2^ > PbSO4 + MnO4^^ 5. HNO2 + Cr2O7^2^ > Cr^3+^ +
asked by Yukiko 
engineering
evaluate each of the following and express with SI units having an appropriate prefix: (1) (50mN)(6GN) (2) (400mm) (0.6MN)^2 (3) 45 MN^3/900Gg
asked by ashley 
Chemistry
Label the oxidizing agent and the reducing agent: a) P4(s) + 5O2(g) > P4O10(s) b) Co(s) + Cl2(g) > CoCl2(s) c) Fe2O3(s) + 3CO(g) > 2Fe(s) + 3CO2(g) d) PbS(s) + 4H2O2(aq) > PbSO4(s) + 4H2O(l) I never learned about oxidation numbers. Thanks!
asked by Yuval 
Chemistry 2 Ap
Calculate the masses of Cr2O3, N2, H20 produced from 10.8 g (NH4)2Cr2O7 [ the 2 belongs to the nh4] in an ammonium dichromate volcano reaction. I need to know what the balance equation is, and im having a little trouble with it. Pleasee help!
asked by jecce. 
mathematics
a boat travels 12 km upstream and back in 1 hour and 45 min.if the speed of the current is 3 km/h throughout,find the speed of the boat in still water,giving your answer correct to 3 decimal place. NOTE:(Answer is 14.3 km/h,so can any one show me the
asked by alyshan 
6th grade
What of the following is a wordrocessing program? a.Internet Explore b.FrontPage c.QuckBooks d.Word
asked by Albree 
science
What non living thing can reproduce, grow and repair themselves?
asked by sam 
chem
what type of bond are nitrogen and carbon atoms mostly like to form with other bonds.
asked by Adam 
mentor high
What is the density of carbon dioxide gas if 0.196 g occupies a volume of 100 ml?
asked by nick 
economics. urgent
Assuming that shoes have a world price of US$60 a pair, that the EU has a 45% ad valorem import duty on footwear which applies to all types of footwear and an Italian company is proposing a project to substitute 150,000 pairs of imported shoes by
asked by gosh 
accounting
I have been hired into a new company to oversee the accounting department. What type of financial reports would I expect to see in the department? How will I use the financial reports available to me to make business decisions?
asked by Anonymous 
Math
what is the longest multiplication combination for 120
asked by Kelsey 
math
Samatha's speedometer reads in kilometers per hour. if the legal speed limit is 55mi/h, how fast can she drive?
asked by Peggie 
science
will paraffin float on water?
asked by Janell 
math
I though 1 doesnt count for odd or am I thinking of another rule
asked by carle 
math
complete each statement. (round to the nearest hundreth). 7L=  qt
asked by Veronica 
Math
hi, I am trying to find the domain and range, of this equation, in interval notation. y = 4/(x+3) , can you please help?
asked by Levi 
english language arts
4)The crosscountry team ran (down the avenue) and (through the park).
asked by george 
math
corrected ? TWO ODDS =ODD? OR 1 ODD+1EVEN=EVEN?
asked by cam 
math
Mark uses 1 pt 9 fl oz and then 2 pt 10 fl oz from a container of film developer that holds 3 qt . How much of the developer remains?
asked by Veronica 
language arts 8th grade
blank is to vain as modest is to conceited define the words part in the sentence: Everyone should listen to the teacher. sorry it sounds so easy but i have trouble plz and thanks.
asked by taylor 
Algebra 1
Who would be interest in a data in which the data is a recorded age (in months) of when infants first walked and Why? I need help, I am kind of stuck on this problem. Like just give an example and you don't have to explain why.
asked by Joy 
Math
is 1 really an odd number i think its was neither odd or even
asked by carle 
Math
what is the domain, range, and zeros of: f(x)=x and h(x)=x2 ?? thank you!
asked by Anna 
Biology
Which organism is a thirdorder heterotroph? To what trophic level does that organism belong?
asked by Becky 
science
what are some sources of Chlorofluorocarbons, I know freon is one of them, but is there any more? What kind of health or environmental hazards do these cause?
asked by Anonymous 
Math
Place value through thousandths: What is the word form for 1 minute, 38.29 seconds?
asked by MicKayla 
Note to William
Thank you for your contributions to the Jiskha forum this evening. However, I removed one of your posts because you gave your full name and a reference to Facebook. In order to keep everyone safe, we don't permit personal information on this board.
asked by Ms. Sue 
Math
Solve the question: sin(2x)=cos(x), for values of x between 0 and 2 Pi
asked by Ryomasa 
Language arts
the capital letters in the sentence are either adverbs or prepositions am not sure which this one is 1)we looked ACROSS at the crowd on the opposite shore.
asked by camiron 
Social studies
I need to find on a map the north middle latitude and the south middle latitude
asked by Dawn 
science
Who inventerd the periodic table
asked by lisa 
math
how many 2point coupons and 5point coupons does Noelani have?
asked by amanda 
biology
What is the name of the lens used to locate a specimen on a microscope?
asked by Mary 
geology
1. What fraction of the Earth is made up of each of the major compositional layers: core, mantle, and crust? 2. What cities lie the same distance from our town as the boundaries of the following layers in the Earth lie from the solid surface? a. Base of
asked by student01 
LA for Ms.sue
i just wanted to let Ms.Sue know that the names keep changing from this computer because more than one person uses it and everytime they use a different name. sorry for the confusion.
asked by mysterychicken 
science
what are some sources of carbon dioxide?
asked by Anonymous 
Sci
What are the 5 signs that show a chemical change has taken place? I wrote:  theres a smell of ordur  change in color  fizzing or bubbling  percipitate forms  difficult to reverse Could you name a couple more please and tell me if those are right.
asked by Lena 
Math
Solve the equation for solutions in the interval 0 < x < 2pie those are supposed to be less than or equal too signs
asked by Amy 
algebra
divanna scored 67% on her test. IF she had paid closer attention to signs, she would have had 2 more problems right and would have scored 80%. write the expression for how many problems in all she would have answered correctly
asked by blakers 
math
write the value of each digit in the following numbers.e.g.4034 hundred0 tens ones
asked by jean 
english
I am having a hard time finding a fullsentence outline for this can anyone help me? What would a fullsentence outline be for this thesis? Native American Indian names, mascots and logos in all sports from elementary schools to professional teams can be
asked by Anonymous 
chemistry
what's malleability
asked by ashley 
math
how do you use long division to do 0.18 divided by 0.3
asked by martha 
Reading
Explain the diferent between expositorty nonfiction and narrative nonfiction?
asked by Angel 
english
please help us unscramble sbsolapekpo
asked by Jaci 
Math
2x4²(4 squared) that is the math problem i cant figure out if 4² means 4x4 or if it measns 4x4x4x4 please help its the sendond day of grade 9 ,, i don't wanna look dum
asked by Stephenie 
Math
If the size of a population is N and the size of a sample of the same population is n, then the correct relationship between N and n is
asked by Marilyn 
Math
2x4²(4 squared) that is the math problem i cant figure out if 4² means 4x4 or if it measns 4x4x4x4 please help its the sendond day of grade 9 ,, i don't wanna look dum
asked by Stephenie 
Word Problem
Suppose a frequency table consists of six categories. If all six categories contain the same number of observations, the interior angles of each section of the associated pie chart would be
asked by Marilyn 
9th grade
explain how each value in the addition table changes when you move up 5 rows and left 3 columns
asked by rozi 
12th grade
Why is it difficult to recognize the worth and dignity of all individuals at all times?
asked by chris 
Math
I know a ratio compares two numbers. However, my niece came home with this homework question and I'm not sure what the answer would be. Complete the ratio scale 1 then a box is drawn 6 another box is drawn 4 16 then a box is drawn 8. Please Help Thanks
asked by Shirley 
english
Here is my sentece outline for this thesis Native American Indian names, mascots and logos in all sports from elementary schools to professional teams can be offensive to some people not to others. Can you tell me if it is ok? I. Several organizations are
asked by Anonymous 
math
i just forgot how to find the equation in slopeintercept form for a line. Can anyone please give me some hints to do it with "the line through (3,2) with slope m=4/5" as an example? Thanks a lot!
asked by komi 
History
What should never be compromised?
asked by Jane 
math
Identify the rate, base, and amount in each rate 75% statement or question. Do not solve the base 150 exercise at this point. 150 is 75% of what number?
asked by Veronica 
equations
does it make a diffrence what two points you chooose on a stragight line to find the slope of the line
asked by isaiah 
math
what is a slope
asked by isaiah 
7th grade english
Ok i got a work sheet and i have to compare an articale that was writen by billy shore on sept.1,2006 and the IB learner profile. what are some similarites
asked by Marussa 
Math
explain why the equation x^2 + y^2=1 does not define y as a function of x.
asked by Anna 
spanish
wat does la tu ya means
asked by kiki 
Math
18/6+3 if there is a remander after the division (/) what do i do ?
asked by Stephenie 
exponets
4213+(12x2)=
asked by bonbon 
math
place the set in ascending order; 3/7, 6/7,1/7,1/2.2/7
asked by annonoumus 
math
add. 1/3+ (5/6)+(1/2)
asked by annonoumus 
math
4x9/63 i know that after the division part there is going to be a remainder so how do i work the remainder into my BEDMAS ?
asked by Stephenie 
Ethnics
If I am writing an autobiography on my town, how do I properly list a body with supporting evidence and intext citations and have references with three sources? Do I ask people around town, and if so how do I do this in APA format??I am not sure how I can
asked by suzi 
Math
Estimate the amount in each of the folloing problems. What is 48.3% of 1,500?
asked by Brenda 
Language Arts
What is another name for a red Indian woman beginning with the letter S?
asked by Antony 
math, algebra
solve for x 2  5x = 1  4x
asked by Kyle 
accounting
I have been hired into a new company to oversee the accounting department. What type of financial reports would I expect to see in the department? How will I use the financial reports available to me to make business decisions? This is what I have so far
asked by Anonymous 
math
0.4(square root symbol)29.6 i have absolutly no idea how to do this, plz help me
asked by lily 
Diversity
The racial makeups of the village are 97.95% White, and 2.05% from two or more races. Hispanic or Latino of any race are 0.21% of the population (FB 2005). Fredericksburg sits directly in the middle of the largest Amish settlement in the world, which
asked by suzi 
speech
how can language be a barrier in a situation? How can language be beneficial in a situation?
asked by leigh 
math
exponential notation?
asked by Anonymous 
french
How do you say in french: No,I don't visit them on vacation. I have: Non, je ne leur rends pas visite a vacances.
asked by laurel 
French
How would you say, "I went to a family reunion" in French? Would it be "Je suis allee a la reunion de ma famille"? (accents are missing) Thanks
asked by Anonymous 
history
are there any popular Us history debates that i could write my thesis statement on?
asked by kayla 
health
what is the definition of social and physical health?
asked by anne 
math
Mark use 1pt. 9fl. oz. them 2pt. 10 fl oz from a container of film developer that hold 3qt. How much of the developer remains?
asked by Brenda 
literature
The lyceum movement was an expression of New England's interest in what?
asked by mysterychicken 
math
3(a/7)+7(a/3)
asked by alex 
Math
My number is a multiple of 4 and is a square number less than 50
asked by Savanah 
music
How has other culture's use of their music in American helped them to keep their identity.
asked by luly 
math
How can a number be used to name something?
asked by royal14 
music
How has other culture's use of their music in American helped them to keep their identity.
asked by luly 
math
Please check this problem to see if I answer correctly x  3 > 8 Answer x > 11
asked by jay jay 
math
problem 2 x + 7 < 10 Answer x > 3/2
asked by jay jay 
math
Please check problem 3y  2 > 12  5 y answer y > 7/4
asked by jay jay 
FRENCH REPOST
How would you say, "I went to a family reunion" in French? Would it be "Je suis allee a la reunion de ma famille"? (accents are missing) Thanks
asked by Anonymous 
Math
Can you help me with my son's homework question: Maria earned $110, which is $86 more than twice the amount Joan earned. How much did Joan earn? a. $12 b. $18 c. $24 d. $30 I would like to know the 5th grade equation that represents the answer. I guess I'm
asked by Rich 
math
can someone please describe the properties and characteristics of fractions without numbers. Thanks!
asked by tommy 
math
The united states emitted 19.5 million of nitrogen oxides (NO) into the atmosphere in 1987. ONe metric ton (1) equals 1,000 kg. How many kilograms of no were emitted to the atmosphere in the united states during 1987?
asked by Lulu 
10th grade
engineering foundations 2 calculations and converstions question. How do I round off the following numbers to three significant figures? Or can you give me an example of how to round off number 1. 4.65735 m 2. 55.578 s 3. 4555N 4. 2768 kg
asked by carmen 
Engineering Foundations 2
engineering foundations 2 calculations and converstions question. How do I round off the following number to three significant figures? Or can you give me an example of how to round off number 3. 4555N Would I round off this to be 4555N to be 4555.00N 3.
asked by carmen 
10th grade
Engineering Foundations 2 Calculations converstions How do I put this combination in the correct SI form? MN/ks2 kN/ms
asked by carmen 
Math
Walter has a vegetable garden in the shape of a regular pentagon.How much fencing will he need to enclose his garden if one of its sides measure 4.06 meters?
asked by Kiana 
Math
Write an inequality and provide a value that may or may not be a solution to the inequality.
asked by jay jay 
Math
5x^2 + 26x + 5 Besides guessing and checking, is there any other way or "trick" (preferably not timeconsuming) to factor polynomials whose leading coefficient is NOT 1? Thanks much!
asked by Nikki 
10th grade
How do I represent the following to 3 significany figures and express the answer in SI units using an appropriate prefix? or Can you give me an example? 45 320 kN
asked by tonya 
math
3(a/7)+7(a/3) answer 3a/21+7a/21 = 10a/21 am i on track
asked by alex 
math !!!
2cosx + 1 = 0 solve the equation for solutions in the interval : 0 < x < 2pie those are less than or equal too signs
asked by Amy 
math
A motorboat can maintain a constant speed of 16 miles per hour relative to the water. The boat makes a trip upstream to a certain point in 20 minutes and the return trip takes 15 minutes. What is the speed of the current?
asked by leila 
6th grade
can anyone help me I need to know how to get the prime factorization of a number using exponents
asked by nick 
Math Algebra 1
A gym is 21 years newer than the auditorium. The gym is also one fourth as old as the auditorium. How old is each building? Choices for auditoriums age:26, 27, 28
asked by Job 
math
*if it is in parentheses, it is subscripted. the sequence {a(n)} is defined recursively by a(1) = 1, a(2) = 1 and for all n>= 1, a(n+2) = a(n+1) + a(n). use the principle of mathematical induction to prove that a(1) + a(2) + a(3) + ... + a(n) = a(n+2)  1
asked by zgord 
4th math
i am 900 more than the greatest possible 4 digit even number that can be mad using the digits 1,4,2,5. what number am I?
asked by kathya 
high school
Is there a formula or general for finding the number of segments that can be named by a given number of points on a line?
asked by Maria 
ethnics
impact of Orientalism on Muslim and Arab Americans?
asked by kimmie 
math
Complete each statement .(round to the nearest hundreth) 7L = _________ qt.
asked by Karen 
world history
How did the war in vietnam change American foreign policy?
asked by Nathan 
Math
list whole numbers 110 that are factors of 1260
asked by Stacy 
writing
tip for essay writing
asked by mariaane 
economics
Can someone assist me with these two questions. Thanks A perfectly competitive firm's demand is ____________ elastic and equal to ____________ which is equal to ____________. A firm is allocating 16 hours a day on its assembly line to producing goods A and
asked by natalie 
7th grade
wht is the 8 parts of speech
asked by laura belizaire 
Math
How do I find the area of the region bounded by the curves y = e^x, y = e^x, x= 2, and x = 1? Even if you could just help me in getting started it would be a HUGE help. Thanks!
asked by Kara 
English 2 honors
can someone please give me a website to go to, to find these stems please,or can you please tell me the meanings for these stems: per gamy gyn/gyno mania path phobia psych soph annus cap/capit cor/cord homo manu milli ped/pod sect ary ence/ance some
asked by megan 
Math integral
What is the integral of 1/(x√(x^24)) dx? So I know that I am going to have to factor out the 4 and use the arcsec trig identity but I've having trouble getting to a viable usubstitution. I've gotten to factoring like this so far: √(x^24) =
asked by Terry 
english language arts
can prepositions come at the end of the sentence
asked by alejandro 
geometry
how many planes contain the same collinear points?
asked by jasmyn 
artist
what are the elements
asked by austjin 
gometry
multiple choice always,never,sometimes Intersecting lines are _____coplanar?
asked by jasmyn 
geometry
multiple choice always,sometimes,never A plane containing two points of a line_________contains the entire line?
asked by jasmyn 
Research Writing
Can someone help me please. How would one do a Annotated Bibliography?
asked by Doris 
history
who discovered america?
asked by jordan 
French
Hey I was in french immersion last year, but now I'm not cuz I moved, and I'm wondering, is there a website so I can catch up on my french so I'll be able to at least UNDERSTAND french? thanks! ~jason~
asked by Jason 
engineering
represent each of the following to three significant figures and express each answer in SI units using an appropriate prefix: a)1568(10^5)mm b)0.005 63 mg
asked by ashley 
engineering
convert 65 slug/ft^2 to appropriate SI units
asked by ashley 
geometry
which three points are not collinear A(0,0)(0,2)(0,4) B(0,0)(3,0)(5,0) C(0,0)(0,2)(3,0) D(2,2)(2,2)(2,3)
asked by jasmyn 
Math
Express the diameter of a 3\22 inch twist drill as a decimal
asked by Miranda 
english/language arts
Where are the prpositions and what are their subjects(some of them contain more than one? 1)Chhirps of the newly hatched chicks could be heard in the corridor. 2)A plane made an emergancy landing in a corn field. 3)The elephants lumbered past us toward the
asked by Phillip 
Science 4th grade
where do the seeds of a fruitbearing plant form? pollen cell.
asked by LaNoria 
Criminology
If criminal behavorial pattern in adolescents is not corrected, where might it lead as the adolescent reaches adulthood?
asked by Mary 
engineering
what is the SI form A)MN/ks^2 B)kN/ms
asked by ashley 
English (Grammar)
In the following sentence would I use a colon, semicolon, comma, or nothing after the word or? (the area in question is marked with *) Is it the bones and skin that keep us standing upright*:;,?* or is it something bigger than that, something other than
asked by My 
engineering
wat is the SI form? a)Mg/mN B)MN/(kg*ms)
asked by ashley 
Language Arts
This is for writing an expository essay on why the wheel is so important. Ca someone help me and figure out 3 reasons why the wheel is so important?
asked by Holly 
Physics
n apple and feather free fall in a evacuated chamber. The apple and feather are released from the top. Suppose the camera opened flash every 1 s. (1)Suppose A1 is the distance from t = 0s to t = 1 s, A2 is the distance from t = 1s to t =2s, A3 is the
asked by Jeff 
college
i need to graph this equation (x3)^2+(y+5)^2=9 this has me totally confused.
asked by Adam 
something
identify prepositions and subjects some have more than 1 1)The puppy came to our tent and slept at the foot of my sleeping bag. 2)A skywriter flew over the field during the game. 3)The city was without power for several hours 4)The crosscountry team ran
asked by George 
calculus
Find an equation oif the line that contains the two points. Write the equation in the general form Ax+By+C=0. (5,4)and(2,5) Can anyone please teach me how to do this??? I got no idea with writing the equation in the general form.
asked by Kumiko 
geometry
im trying to explain to my brother how to do graph this problem put im not sure how to solve it either. (x3)^2+(y+5)^2=9 so if someone can explain how to graph this it would be greatly appreciated
asked by Adam 
geology
1. What fraction of the Earth is made up of each of the major compositional layers: core, mantle, and crust? 2. What cities lie the same distance from our town as the boundaries of the following layers in the Earth lie from the solid surface? a.Base of
asked by student01 
Science 4th grade
What is the green pigment that plants use to make food? fungi
asked by LaNoria 
12th grade
Given that x is an inetger, state the relation representing each equation by making a table of values. y=3x+5 and 4
asked by Liz 
math
what is the base number for 729, 625 as expressed as a power?
asked by danielle 
math
Can 2 odd numbers add to an even or 1 odd and 1 even to an even?
asked by cam 
english language arts
Ms.Sue is this right? 1)The puppy came (to our tent) and slept (at the foot) (of my sleeping bag). 2)A skywriter flew (over the field) (during the game). 3)The city was (without power) (for several hours) 4)The crosscountry team ran down the avenue and
asked by George 
Biology
Why does it make a difference if you measure metabolic rate in terms of O2/animal or O2/g?
asked by Jenna 
math
Identify the rate,base, and amount in the following application at this point. Business and finance. In a shipment of 750 parts, 75 were found to be defective. ahat percent of the parts were faulty?
asked by Joe 
math
The united states emitted 19.5 million of nitrog3en oxides (NO) into the atmosphere in 1987. One metric ton (1) equals 1,000 kg. How many kilograms of No were emitted to the atmosphere in the United States during 1987?
asked by Peggie 
math
A motorboat can maintain a constant speed of 16 miles per hour relative to the water. The boat makes a trip upstream to a certain point in 20 minutes and the return trip takes 15 minutes. What is the speed of the current?
asked by leila 
math
complete each statement. (round to the nearest hundreth) 72in =  cm 7L =  qt
asked by Peggie 
science
Can you please tell me why the German Philosopher Nietzche went mad with closed universe theory.
asked by Julia