Questions Asked on
April 23, 2007

Chemistry
1.Arrange the following oxides in the order of increasing basicity. Al2O3 B2O3 CaO Ga2O3 In2O3 RaO 2.Arrange the following oxides in the order of most basic to most acidic. Al2O3 Cl2O7 Cs2O N2O5 Na2O P2O5 SO3
asked by Mark 
English
Can you help me unscramble these words; dramalanse,ubrocai,planotee,evebra, chorits. they are animal names.Please help!!! thanks Try these: http://www.ssynth.co.uk/~gay/anagram.html http://wordsmith.org/anagram/ http://www.unscramble.net =) unscramble to
asked by Dora 
Math
If you told someone that the greatest depth of Lake Superior is 1333ft would you be expressing a number similar to mode, median, mean or range? That would be the range. The mode is the numbers that appear most often. Median is the middle number and mean is
asked by Connor 
chemistry
Write the balanced chemical reaction for the rusting of iron? the acidic vinegar dissolved a protective coating off the steel wool, allowing the oxidation of the steel to begin. This process is called rusting. In this reaction, iron(III) is combined with
asked by Rox 
chemistry help asap!
Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitrate, you hypothesize the empirical formula of the
asked by yellowone 
calc/physics
A force of 250 N is required to stretch a spring 5m from rest. Using Hooke's law, F=kx, how much work, in joules, is required to stretch the spring 7m from rest? The energy required scales with x^2. Multiply 250 J by (7/5)^2.
asked by Mischa 
CHEMISTRY
which of the following elements would have the highest melting point?> a)K b)Mg C)Na D)al e)Ca Calcium would have the highest, follwed by aluminum, magnesium, sodium, lowest melting pointpotassium. Please double check thank you i found that you are
asked by ISA 
Maths help
Hi MY question is if a cylinder has a volume of 72cm cubed and a crosssectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The crosssection of a cylinder is a circle. so pi(r)^2=18 solve for r
asked by Ali 
math
Please help me to find the fivenumber summary of the following set of numbers.338, 226, 149, 391, 247, 501, 300, 223, 320 According to a definition I found online, "The fivenumber summary of the data consists of the minimum data point, the first
asked by carmen 
Trigonometry
Need help solving problems using the Trigonometric Identities: 8cos^4 thet=cos4theta+4cos2theta+3 I am a bit unsure how to solve it. I am aware that the first step I must take is to simplify the problem and then use the Product to Sum formula Nasty one!
asked by sierra 
Chemistry
I have to write the balanced equation for the reaction between hydrochloric acid and zinc metal.I came to the answer of: HCl+Zn(s)>H(g)+ ZnCl Can someone tell me if this is the correct balanced equation for this reaction? No it isn't but it's close. The
asked by Chrissy 
maths help
Hi MY question is if a cylinder has a volume of 72cm cubed and a crosssectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The volume of a cylinder is given by volume = (crosssectional area) x
asked by Ali 
Chemistry
Suppose you are studying coordination compounds of Co(II) with the ligand pyridine (py, C5H5N, MW = 79.10). You isolate a crystalline compound and since the only available ions are chloride and nitrate, you hypothesize the empirical formula of the
asked by Olivia 
chem
Which of the following oxides is not highly ionic? BeO MgO CaO SrO BaO I believe is BeO because is an amphoteric oxide...may be I could be wrong please help me... You are right. BeO it is.
asked by nivi 
SoCiAl(please help)
Does anyone know of a nation that is on the northwestern border of France not Britain or Ireland? I think it could be Belgium, Normandy, or Switzerland. 1) Normandy is part of France. http://www.lonelyplanet.com/mapshells/europe/france/france.htm Check
asked by brie 
chem
The most poisonous ofthe chemical elements is... A.Ar B.As C.Be D.Bi E.Pu I thought in the beggining it was As, but got it wrong...so I believe it would be Pu...can somebody help... Almost all compounds of As are toxic to humans but As metal, itself,
asked by nivi 
SoCiAl
Hitler entered France by conquering this nation on its northwestern border_________. This question was on a test I just got back today and I can't figure it out. Isn't the only nation on the northwest border of France Great Britain??? Anyway, the answer is
asked by Anonymous 
CHEMISTRY
how many grams of zinc are required to react with excess acid to make one liter of hydrogen at STP? i have no clue how to go about this i need help Write the balanced equation. Zn + 2HCl ==> ZnCl2 + H2 2. Use PV = nRT to convert 1 L H2 gas to mols OR take
asked by yellowone 
Physics please check repost
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^3 m3. The diagram is a upright rectangle divided into small squares
asked by Mary 
HELP Please. Geography.
I found some links for the geological history for the appalachian mountains BUT it confuses me. Can you please simplify the formation of the Appalachian mountains?? please? thanks. Basically the mountains were created due to the merging of the continents
asked by Sasha 
vocab urgent
i need 3 more sentences using circuitous please help i really need it! Thank you for using the Jiskha Homework Help Board but we do not DO the work for you! Use any good dictionary for the definition. Use any good Thesaurus for a synonym and/or antonym.
asked by anonymous 
Physics please check repost
The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^3 m3. The diagram is a upright rectangle divided into small squares
asked by Mary 
Physics
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4 Hz. Find the ratio m2/m1 of
asked by Papito 
Math
What is the range of this data? 36,64,37,53,60 The smallest number is 36 and the largest number is 64. What do you think the range is? 28
asked by Michael 
chemistry
which is the most reactive form of phosphorus? blue, red, white or black? or are they all equally reactive? I suppose its a matter of how you define reactive but I would go with white since that reacts at room temperature with oxygen of the air to creat
asked by naty girl 
CHEMistry help plz
a coordination compound of cupric ion can be described asa Cu(NH3)x SO4. it is known to be 29.9% NH3. what is the value of X? 4. Check it to see if that gives 29.9% NH3.
asked by naty girl 
Chemistry
How many electrons are transferred in the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water? I am not quite sure what the reaction is, but if you are going from Fe(2+) to Fe(3+), the Fe is losing one
asked by Jessica 
Trigonometic
Solving Trigonometic Equations 1)sinx = (4/5) 2) cosx = (12/13) Solving Trigonometic Equations 1)sinx = (4/5) 2) cosx = (12/13) What is the question? Solve for x? x= arcsin (4/5) put that in your calculator. Same for the next. For both cases I recognize
asked by abdo 
science
how does an electric ciircuit work? Books have been written about electrical circuits, what kinds, specilized circuits, etc. You need to be a little more specific with your question.
asked by garret 
science
what is the importance of fuses? They are placed in electrical equipment and in houses (although most houses now use circuit breakers) as safety devices. If a short occurs and too much electrical current is going through the circuit, the fuse "blows"
asked by garret 
Chemistry (again)
I need help with this question: Suppose you bake two cakes and the the one with twice as much baking powder raises twice as much. Is this proof of the relation between concentration and reaction rate? See I know concentration has an affect on reaction rate
asked by Chrissy 
s.s
Which statement BEST describes the mood of the continental congress in May 1775? a. few delegates wanted a formal break all ties with britian. b.most delegates wanted to break all ties with britian. c.A majority of delegates believed that war with britian
asked by kelly 
Math
The path of a softball is given by the equation y=0.08x^2 + x + 4. The coordinates x and y are measured in feet, with x=0 corresponding to the position from which the ball was thrown. A) Use a graphing utility to graph the trajectory of the softball. B)
asked by Laura 
MICROECONOMICS
This is really long but i really need help!! THX In 1973, there was a war between some arab countries and Israel. Many western countries wanted to help Israel. Some arab oil exporting countries have reacted by cutting oil exports to those countries. Prices
asked by Lamia 
Geography
I need to do a power point presentation on the Appalachian mountains. I need to find the geological history,rock structure,appearance,soil, vegetation,wildlife, and human activities. Can you please provide me with links with these information? Thanks so
asked by Sasha 
Chemistry
Why is the equivalence point of a weak acidstrong base titration above 7.0? How can the data reflect this? The titration of a weak acid with a srong base produces a salt of the two. The anion is hydrolyzed in water solution but the cation is not. A^ +
asked by Anonymous 
chemistry 2
Which group from the periodic table contains two elements that exhibit +2 and +4 oxidation states? 1A, 2A, 3A, 4A, 5A, 6A OR 7A 4A. C, Sn, Pb That it 2A and 4A
asked by ISA 
PROGRAMMING
PLS, I NEED TO BE GUIDED ON HOW TO WRITE A SIMPLE PROGRAM IN BASIC THAT WOULD PROMPT 3 LEVELS OF AUTHENTICATION WHEN UNAUTHORISED LOGON IS EFFECTED. You are not going to be able here to get detailed help on the program code, as there are many, many
asked by UZOWULU CHARLES 
position paper+can someone edit it for me thanks!
thanks Writeacher What is a senate? A senate is the upper house of the legislature. It is also know as the red chamber. The senate’s job is to undertake indepth inquiries into issues. Many people argue against and for the senate this is an important
asked by Anonymous 
chem
For which element would you expect isotope effects to be of the greatest importance in CHEMICAL processes? a.H b.He c.Li d.B This problem could be interpreted many different ways and come up with different answers, I suppose. In the context of number of
asked by nivi 
can someon edit the rest of my position paper thnk
The Senate In reality has no real job. Yes, the senates can disapprove or approve any piece of government legislation. If however the House of Common disagrees then they over rule the senates. If the prime minister loses the support of the House of Commons
asked by Anonymous 
chem
1.Which of the following elements has the largest known oxidation number (in magnitude)? Pt Au Os Fe Ru 2.Which of the following metals has the highest melting point? Al Mg K Na Ca I know that Ca is wrong because I tried it, so I really think it has to be
asked by nivi 
water vapor
When the weather is hot, and the inside of the house is cold, why do droplets of water form on the windows? Do they form on the outside or inside of the windows? Thanks. Water droplets form because of condensation. Here is a site that that talks about
asked by Isabella 
math
how do you change the fraction 8/35 to a percent? please try to help. thanks You would put 8 divided by 35 into your calculator, and you get 0.22.......... Next, you would move the decimal two places to the right and round to the nearest tenth about 22.9%
asked by kayla 
maths
The head of an industrial machine moves in a straight line horizontally backwards and forwards from a central position. The movement can be modelled using the sine wave d = 80 sin(pie t), where d is the horizontal distance (in cm) from the central starting
asked by katie 
maths
The head of an industrial machine moves in a straight line horizontally backwards and forwards from a central position. The movement can be modelled using the sine wave d = 80 sin ( pie t), where d is the horizontal distance (in cm) from the central
asked by k 
math
bill and anig both have baseball cards. aniq has four times as many cards as bill. the number of cards aniq has is equal to the number of cards that bill has plus 60. determine how many cards aniq has. This becomes a direct translation of the "English"
asked by ashley 
US History
To what extent did events of the 1890s foreshadow events of the 1990s?? Can someone find me some info so I can write an essay about it. I tried looking for some info but could not find anyhting. I would greatly appreciate it. Thanks
asked by John 
Math
I cant get the metric system. Are there any tips that can help me learn conversions? Make and use flashcards. Measure things with both scales. Thanks!
asked by DMC 
History
To what extent did events of the 1890s foreshadow events of the 1990s in the United States?? John or Dave or whoever (same IP address): Your question has already been addressed: http://www.jiskha.com/display.cgi?id=1177369579
asked by Dave 
Economics
Problem #1: If the economy is selfregulating, wouldn’t these scenarios represent correct and sequentially accurate economic explanation? a)
asked by Sally 
History Essay
Can someone find me an example essay that deals with the following question. I am having trouble finding one. " TO what extent did events of the 1890s foreshadow events of the 1990s?" I just need an example so I can use it to get an idea of what exactly to
asked by Dave 
math
please help me to perform the indicated operation.1520/(3)(5)15 You need additional parentheses or brackets to clarify the order of operations. For example, 15{20/[(3)(5)]}15 = 20/15 = 4/3 (1520}/[(3)(5])15 = 15 1/3 15[20/(3)](5)15 = 100/3
asked by carmen 
English
what do i write for the intertextual links of a text? Can you amplify your question some? It is not clear on what you are writing, and what you are doing with the intertextual links. i have finished reading a novel, and i have to write about the context,
asked by Pauline 
5th Grade Math
I cannot get my brain around questions like this: 1/4 divided by 2/5 = 2/4 x ? I have 4 problems like this and even the example doesn't make sense  I may have copied it wrong off of the board. Can anyone help? Thank you! You invert the second fraction and
asked by Kathleen 
English
We are supposed to give a presentation of a certain author, we are supposed to talk about customary themes; but even though I have look it up I can't understand what it is, can you guys tell me? Thanks in Advance (Broken Link Removed) This site has a good
asked by Claudia 
math
Round the number 43,678.426785 to the nearest ten thousand 40,000 or 50,000. 43,678 is less than half way to 50,000 so 40,000 is to the nearest 10,000.
asked by abe 
Trigonometic
Solving Trigonometic Equations solve for x : ( by radian) 1)cotx= 3 2)secx = 0.5 1) Same as tan x = 1/3. Use a calculator. I get 0.321 radians 2) sec x = 0.5 is not possible. The absolute value of the secant must be one or more. >
asked by abdo 
can some one edit my essay?
The Senate In reality has no real job. Yes, the senates can disapprove or approve any piece of government legislation. If however the House of Common disagrees then they over rule the senates. If the prime minister loses the support of the House of Commons
asked by Anonymous 
ss
The british army was trapped at yorktown by? a.an army led by friedrich von stueben b.a freet of spanish warships c. a fleet of french warships d. guerella fighters led by francis marion. Isnt it C I want this paper to be correct in all the answers as much
asked by kelly 
SoCiAl
Also, was Charles De Gaulle a Prime Minister or an author? my eng. teacher said he was an author but my friend said he was a Prime Minister. What do you think? or was he neither? Thank you for using the Jiskha Homework Help Forum. Here are some links on
asked by brie 
eNgLiSh
If you were writing a bibliography/works cited page, how would you write one for a book if there are three authors? This is what I think: Davidson, James West et al., eds. The American Nation(underlined). (city: publisher, year). But is the et al., eds
asked by brie 
thanks~
The Senate In reality has no real job. Yes, the senates can disapprove or approve any piece of government legislation. If however the House of Common disagrees then they over rule the senates. If the prime minister loses the support of the House of Commons
asked by can some please edit my essay+ position paper 
English Essay Help!
Okay, so for part of an essay, i have to say WHY i picked the subject i did. My subject's Toussaint Louverture, and the only thing i can think of is that it's not good to think that all french people are white, and that he's a great example of someone who
asked by narine 
can someone edit my essay?
The Senate In reality has no real job. Yes, the senates can disapprove or approve any piece of government legislation. If however the House of Common disagrees then they over rule the senates. If the prime minister loses the support of the House of Commons
asked by tahnks~ 
social studies
Identify the constitutional issues posed by the doctrine of nullification and secession and the earliest origins of that doctrine Please tell us what you've found about this question, and we'll be glad to help you.
asked by heidi 
analogy
gregarious:unfriendly::volatile:______ prodgious, explosive, fleeting, caustic, or inert I know that gregarious and unfrriendly are opposites, but I can't figure out which word is the opposite of volatile. http://www.answers.com What's the general meaning
asked by Jordan 
math
7 1/6  6 4/6 = ? could you please show me the steps to do this problem? thank you, ryan 7 1/6 = 6 7/6  6 4/6 = 6 4/6  3/6 = 1/2 mixed fractions are useless in calculations so the first thing you have to do is change them to improper fractions 7
asked by ryan 
chemistry
out of H2Se SiO2 H2O CO2 which of these does not arrange itself into tetrahedral environment when bonding ins a solid state? ok i don't know i need help with this big time There is electronic geometry as well as molecular geometry. The question doesn't
asked by yellowone 
math
three students took part in an afterschool science club. Each student planted a sunflower and observed its growth over time. The graph below shows this data. Create a table that represents the x and y values of the graph. How has each student's sunflower
asked by ....................................... 
math
im not sure what a exponential growth pattern is and I need to find a pattern, than describe it http://www.answers.com/topic/exponentialgrowth
asked by jason 
economics
I am writing a paper on how the monetary and fiscal policies have affected the auto industry i can not seem to find any web site to help me with this can any one give any suggestions Does available credit affect the auto industry? Does disposable income
asked by larry 
algebra
How do you factor out the greatest common factor? 1. 96x^9y^8+60x^2y^684x^4y^4 2. 13m^222r^3 3. 24m^8+48m^536m^2 1. In the coefficients look for the largest number which evenly divides into all the coefficients of the given terms 2. Variables must have
asked by shea 
ALGEBRA 1
Use the Quadratic Formula to solve 1.
asked by DANIELLE 
math
A=p+prt, for t how about subtracting p from both sides, then dividing both sides by pr I think it could be A divided by p, then the quotient of that minus the product of r and t. if you divide by p first you get A/p = 1 + rt then A/p  1 = rt now you still
asked by alexia 
Trigonometic
Solving Trigonometic Equations solve for x : 1)sinx = (4/5) 2) cosx = (12/13) I will do the second one. first of all since the cosine is negative the angle must be in either the second or third quadrants. To find the "angle in standard position" take
asked by abdo 
can someone edit my body paragraph thanks :
can someone edit my body paragraph thanks : The senate has important jobs that not many people know about. One of them is to disapprove or approve any piece of government legislation; with the help of the House of Commons. As well the senates investigate
asked by Anonymous 
Maths
Please Could someone tell me what: 1. A square number is 2. A cube number is 3. A triangle number is Thank you Square numbers are the result of squaring an integer (IxI) Cube numbers are the result of the cube of an integer (IxIxI) A triangular number is a
asked by sean 
Economics
Suppose that S(savings) = $4 billion when Real GDP = $200 billion & S(savings) = $104 billion when Real GDP = $600 billion. If Autonomous investment falls by $100 billion what would be the effect on Real GDPeqm.? Note: eqm. = equilibrium My answer is a
asked by Sarah 
Economics
If the economy is selfregulating, wouldn’t these scenarios represent correct and sequentially accurate economic explanation? 1)
asked by Sally 
math
I need help figuring out these four euations with integers 5x=25 6x4=40 x  +5=0 is this one 3 x+7=7 isnt this on 14 please help thank you very much OK, for the first one (5x=25), you would go: 25 divided by 5, and that equals 5. The second one is
asked by melody 
elements
Are Cds made of dysprosium? As dysprosium has alloys with useful magnetic properties I would think it is more likely to used in the CD player than the CD, but I'm quite willing to be corrected. I doubt it. I would think it was too expensive for CD disks.
asked by Emily 
physics
could someone PLEASEE help me? Ive procrastinated and i'm really desperate... I'm supposed to teach the class about "relativistic momentum and mass" in terms of special theory of relativeity. i looked up infomation on google, but i don't understnad because
asked by kay 
MICROECONOMICS
Can anyone help me????? Are the crossprice elasticities of demand between the following pairs of products likely to be positive or negative? Briefly explain a.
asked by Lamia 
MICROECONOMICS
Can anyone help me??? Rank the products below in ascending order in terms of price elasticity of demand: A chicken meal, food for dinner, a soft drink after a dinner, a fruit desert after a dinner. Here's my guess, but you probably know more about the
asked by Lamia 
MICROECONOMICS
Can anyone help me???? Some restaurants throw away a lot of food at the end of every day. What can you say about the elasticity of supply for the restaurants industry. Briefly explain why it is the case? Lamia, Please note that no one here will do your
asked by Lamia 
MICROECONOMICS
Can anyone help me??? I have to answer this question: This is an excerpt from Wall Street Journal: Instead of relying on round trip fare of about $2,000 between Cleveland and Los Angeles…Continental Airlines since June has offered a $716 fare in that
asked by Lamia 
MICROECONOMICS
You want to estimate the price elasticity of demand for air transportation on the route Abu DhabiLondon for British Airways company? Explain briefly how you would do that. Anyone can help me answering this question?
asked by Lamia 
FrEnCh
What is a shoe verb? Evidently "acheter" is one of them because of it's accents. What are examples of other shoe verbs and what classifies them? Like, do they all have something to do with accents? I am french i can help you but what's a "shoe" verb???
asked by brie 
business
What is meaning of LLC & Entity. A business entity is the way the business is set up to run. It can be a partnership, sole proprietorship, corporation, LLC...these are all entities. A LLC stands for "Limited Liability Corporation." For more information,
asked by Rohan 
Math:[
how do you turn decimals to fractions? http://www.webmath.com/dec2fract.html This is a good tutorial. wdwqdr What is an Improper Fraction?
asked by Shelby 
Social Studies
Is there a desert in Italy? http://www.google.com/search?q=map+italy&rls=com.microsoft:enus:IESearchBox&ie=UTF8&oe=UTF8&sourceid=ie7&rlz=1I7SUNA Nope. =)
asked by Jeffrey 
Geo.
Can you please explain and provide me links for the rock structure of the appalachian mountains? I'm almost done my power point project...I just can't find this information. http://en.wikipedia.org/wiki/Appalachian_Mountains#Geology
asked by Sasha 
math
What is an Improper Fraction? one in which the numerator is larger than the denominator eg. 7/4 Thanks  I didn't have my book and wasn't sure if there was more to it.
asked by Abbey 
analogies
after is to before as death is to? birth
asked by Launa 
analogies
begin is to end as actor is to? begin and end are opposites (antonyms) What are your choices for the antonym for actor?
asked by Launa 
math
the cost of 6oz. of chicken is $2.00. how much would it cost for 1.5lbs. of chicken ? (16oz=1lb.) 2 simple ways: 1. if 6 oz cost 2.00 then 1 oz costs 2.00/6 = .3333. and then 16 oz cost 16(.3333..) =5.33 2. by ratios 2.00/6 = x/16 cross multiply and solve
asked by christina 
MATH
5+2 5 + 2 = 7
asked by ROMINA 
Economics
Problem #1: If the economy is selfregulating, wouldn’t these scenarios represent correct and sequentially accurate economic explanation? 1)
asked by Sally 
math
Properties of Equality 1) 12 X 2 = 24 so (12 X 2)/6 = 24/6 2) 194=15 so (194)+6 = 15+6 3) 21+7=28 so (21+7)18 = 2818 what properties are they looking for? (Broken Link Removed) First: division property second: addition property third: subtraction
asked by Bev'sMom 
Science: Chemistry
Can the Law of Conservation of Mass be applied to a chemical reaction in which a gas is produced? Yes. THe gas has mass.
asked by Need Help 
math
the ratio of jacks to marbles in the bowl was 2 to 5. if the bowl contained 350 jacks and marbles, how many were marbles? 2/7 are jacks, 5/7 are marbles.
asked by ineedhelp 
Chemistry
Is there another procedure for the titration? What equipement would you use? How would your results be different? How do you think we will know what procdure you used?
asked by Anonymous 
immunology
Is ragweed pollen tdependent or t independent and why?
asked by stacey 
CHem Help
what is the formula for laughing gas? is it N2O or N2O4? i think its N2O can anyone confirm this? It's N2O.
asked by naty girl 
chemistry
Boron, germanium, aluminum, silicon and antimony are all semimetals right? or am i wrong on this? i don't think aluminum. Antimony, aresenic, boron, germanium, selenium, silicon, tellurium. double check though.
asked by Robert R.