Tuesday
December 6, 2016

# Posts by barbie

Total # Posts: 88

Chemistry Plz Help!
How to calculate dimensional analysis using the density and molarity to calculate the percent (w/w)???
October 17, 2016

Chemistry
Calculate the percent yield of copper Fe+CuCl2-->FeCl2+Cu
October 13, 2016

Chemistry
Write a balanced equation assuming iron oxidizes to iron (II). I used CuCl_2 in the experiment.
October 13, 2016

english
English is the language of opportunity
April 20, 2016

chemistry
an ionic bond will most likely form between elements from group_ a/2and3 , b/2and6 , c/3and4 , d/4and5 ,e/5and6
January 1, 2016

Geometry
52. Complete two column proof. Given: x/6+2=15 Prove: x=78 x/6+2=15 A:______ x/6=13 B:______ x=78 C:_______
January 9, 2015

math
what is the gcf of 90 and 75
November 3, 2014

math
How many times do you need to multiply 6.5066 by ten to get 650.66?
October 11, 2014

us history
what was captain Mahan's message? How did it influence Lodge and Roosevelt?-
October 22, 2013

Finace
Wheel has just paid a dividend of \$2.50 per share. The dividends are expected to grow at a constant rate of six percent per year forever. If the stock is currently selling for \$50 per share with a 10% flotation cost, what is the cost of new equity for the firm? What are the ...
September 15, 2012

English
Can you say "Had they had an option, they would have picnicked somewhere else"?
August 12, 2012

Geography
What is the difference between an Urban Area and an Urban Zone?
August 11, 2012

General
what do you call someone who now sees life for more than they thought it was before?
August 10, 2012

English
What synonym of crumble can replace it in this sentence: "The town slowly crumbled"?
August 9, 2012

french
Is the Plus-que-parfait tense the same as perfect tense in English?
August 2, 2012

Literature
I have already been to Sparknotes, but it doesn't answer my question.
August 2, 2012

Literature
In Act 5 of "The Tempest", why didn't Prospero tell Alonso about Antonio and Sebastian's plans to kill him? And because of his decision not to, what adjective would best describe Prospero?
August 2, 2012

English Literature
oh ok. thanks.
July 30, 2012

English Literature
Does anyone know where i can read "Nervous Conditions", by Tsitsi Dangarembga, online?
July 30, 2012

Geography
Thank you very much!
July 29, 2012

Geography
What is a rural settlement and what is an urban settlement?
July 29, 2012

math
a bag has 5 silver 3 gold and 2 brass buttons . what is the probability of choosing a silver then a gold button with replacement
June 15, 2012

physics
1. a car starts from rest attains a velocity of 36kmph with an acceleration of 0.1 m/s^2 find the total time of travel of the car. 2. the distance travelled by a body in fourth second is twice the distance travelled in second of the acceleration of the body is 3m/s^2 the find ...
May 20, 2012

physics
one car moving on a straight road covers 1/3 of the distance with 20kmph and the rest with 60kmph find th average speed
May 20, 2012

Geography
What is a gorge?
May 2, 2012

Geographyy
Does the Messina Plate (small piece of oceanic crust between the African and Eurasian Plates, near Messina, Italy) still exist after its forced subduction underneath the Eurasian Plate, by the African Plate?
April 18, 2012

Computer Studies
What happens to a disk when it is formatted?
April 12, 2012

Computer Studies
What is the difference between storage media and storage devices?
April 12, 2012

Geography
How do earthquakes occur at faults?
April 1, 2012

theoretical optics
A man 1.5meter tall stands in front of a concave mirror whose radius is 30cm. Find the position of the man that will lead to his image on the screen 20 cm. from the mirror. How big is the man's image?
March 19, 2012

theoretical optics
A man 1.5 meter tall stands in front of a concave mirror whose radius is 30cm. Find the osition of the man that will lead his image on the screen 20 cm from the mirror. How big is the man's image
March 19, 2012

theoretical optics
Whereb must an object be placed from a concave mirror of radius of curvature of 6cm. to give an image on a screen four times as large as the object
March 19, 2012

English Literature
Can I please get help on the mood and atmosphere created by Allen Curnow in his poem "Continuum"? Thanks.
March 4, 2012

Geography
Thank you, I found my answer!
March 1, 2012

Geography
How are Rift Valleys formed and which two plates formed the Thingvelir Rift Valley in Iceland? Please help!
March 1, 2012

English Literature
I've understood from that the first two stanzas of the poem talk about the writer's childhood memories of the plough horses on his father's farm and how, being a young boy of maybe four or five years old, saw them as giant and mysterious creatures and feared them ...
February 21, 2012

English Literature
I'm sort of a newbie at poetry analysis and i need guidance on this particular poem because I can't find it anywhere on the internet. Will check out these links though, but please help.
February 21, 2012

English Literature
Can i please get the analysis of the poem "Horses" by Edwin Muir? This should not, however, be confused with another of his poems "The Horses". Thank you.
February 21, 2012

math
x + y = 4 , x + z = 4, y + z = 4
October 28, 2011

Maths
Thank you.
August 14, 2011

Math
5X-2=10x-8
August 14, 2011

Completing the square
Please show the procedure for answering this quadratic equation using the completing the square method: x^2+14x+98 I think i understand the basics of the method, but in this particular question I'm finding it hard to use the appropriate factors of 98 - 7 and 14 - to ...
May 20, 2011

Biology
Does the circulatory system transport red and white blood cells? If so, how?
May 15, 2011

English Literature
Describe Charles Dickens' style of writing. I think includes diction and figures of speech used.
May 4, 2011

Physics
4.2 slices
April 14, 2011

Two parallel lines are cut by a transversal. Angles A and B are adjacent exterior angles. Angle A measures 87 degrees. What does Angle B measure?
February 27, 2011

history
Who are the Balkans and what relationship do they have with Russia or Germany or WWI?
October 6, 2010

Science - Physics - Optical Fibres
thanks for trying to help, sra, but there are no answers to my question there...
October 4, 2010

Science - Physics - Optical Fibres
What problems are associated with optical fibres?
October 4, 2010

physics - light
Which principle of light is used in vision?
October 3, 2010

Physics
What is the propper handling of a meterstick?
September 8, 2010

how much space does 150 g of mercury occupy
August 23, 2010

english phonetics
sounds right to me (:. and i have a major in english for speech therapy
August 23, 2010

HCR 210
You can have your instructor fax a form to them explaining the course. I too had that problem. Once the facilities got the faxes, it was fine. This was explained to you in your Syllabus as well as the instructors notes during Week 1.
May 24, 2010

Accounting
How does one determine variance analysis? I am trying to understand this and my text book is confusing me. Also, to determine this, would one find the the answers in the balance sheet or cash flow statement, or from the revenue and expenses?
April 30, 2010

Life orientation
Sizanani & ndlovu
April 29, 2010

math
Thomas is playing Tic-Tac-Toe with a computer. It is the computer's turn to place an "x" on the board. If the computer makes its moves at random in the open spaces, what is the chance it will win on this move?
November 22, 2009

math
Century is to decade as dollar is to: (a) penny (b) nickel (c) dime (d) quater
November 21, 2009

math
Century is to decade as dollar is to: (a) penny (b) nickel (c) dime (d) quater
November 21, 2009

biology
Zola has a splinter in her finger. which of the following actions should she take before she uses a sewing needle to remove the splinter?Give reasons for your answer. a- wipe the needle with a clean cloth. b- wash the needle in hot soapy water. c- pass the needle through a ...
November 9, 2009

biology
what would happen if Australia had no laws to check imported goods
November 9, 2009

330 mgt
Bella is head serve at a chic Italian restaurant. What kind of manager is Bella... 1.Front-Line manager 2.Middle manager 3.excutive manager 4.Nonmanagerial employee
November 7, 2009

chemist ry
if 500 g of KCLO3 decomposes and produces 303 g of KCL, how many grams of O2 are produced?
November 7, 2009

letter of credit= A letter of credit (LC) originates at a bank, and guarantees that a seller will receive payment of a set amount, at a set time, from a buyer as agreed upon. air waybill= An air waybill (AWB) is a shipping contract of sorts, between the seller and the carrier ...
August 20, 2009

introduction to catering
April 21, 2009

catering
According to your study unit, a catering resource that offers global networking for caterers, mentors, a caterer's telephone hotline, and many marketing opportunities is the A. International Caterers' Association. B. National Restaurant Association. C. National ...
April 21, 2009

math
thank you sarah
March 21, 2009

math
i Want to know some words that could be used in exam to say sum or sustract
March 21, 2009

social studies
so the answer could be a
February 9, 2009

social studies
without our two great political parties cutting across economic and geogaphic interests, democracy as we know it could never have been made to function. "the author of this statement probably meant to suggest that a) an important feature of the us political system is the ...
February 9, 2009

social studies
February 9, 2009

social studies
without our two great political parties cutting across economic and geogaphic interests, democracy as we know it could never have been made to function. "the author of this statement probably meant to suggest that a) an important feature of the us political system is the ...
February 9, 2009

Organic Chemistry
3. Compare Sn1 and Sn2 reactivities of alkyl halides with regard to a)stereochemical outcomes b)an increase in the nucleophilic concetration c)an increase in alkly halide concentration d)an increase in the polarity of the solvent e)rearrangements
December 7, 2008

Oranic Chemistry
2. Arrange the compounds of each set in order of reactivity toward an Sn2 reaction. a)t-butyl chloride, 1-chloropropane, 1-chloro-2,2-dimethylpropane, 1-chloro-2-methylpropane b)2-bromopropane, 2-chloropropane, 2-iodopropane
December 7, 2008

Organic Chemistry
1)1-cholorbutane 2)1-bromobutane 3)2-chloro-2-methylpropane 4)chlorobenzene 5)3-chloropropene 6)Benzyl chloride 7)allyl bromide 1. Compare Sn1 vs. Sn2 for the different halides used in this experiment. a)What type of halide is each of these; alkyl, vinyl, aryl, primary, ...
December 7, 2008

math
summer graded 25 math papers in 30 minutes.larry graded 22 papers in 20 minutes.what is the difference in the number of papers they can grade in two hours?
September 25, 2008

Science
An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the folloeing objects will accelerate EXCEPT a)a ball striking a wall, in which the force of the ball on the wall is equal ...
April 30, 2008

Social Studies
The president of the United States is elected by the electoral college. What type of system is this? a) dicatatorship b) monarchy c) oligarchy d) pure democracy e) representative democracy
April 30, 2008

Social Studies
In ancient Athens(Greece) tribes and generals took turns at power. this is an example of what type of political system? a) dicatatorship b) monarchy c) oligarchy d) pure democracy e) representative democracy
April 30, 2008

Science
An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the folloeing objects will accelerate EXCEPT a)a ball striking a wall, in which the force of the ball on the wall is equal ...
April 30, 2008

Science
The Smiths have four children, all girls but the fifth child is a boy. Why did this change occur? a) the law of averages finally catching up b) the conception classes taken by the parents c) the father's contribution of a Y chromosome d) the mother's contribution of a ...
April 30, 2008

english: critical thinking
B) The particular stretch of road is oriented north and south, the orientation that many of the major roads in the Inca system had because of the north-south orientation of the Andes chain.
March 19, 2008

Chem 2
Sorry about the units. It is 249.92mL of H20. Since the water is not in grams, what equation should I use?
February 27, 2008

Chem
step 1:[2A^+3][3B^-2]/[A2B3]=82.55=Ksp step 2:total concentration of the top part is [3.548E82]/x=82.55 step 3:[3.548E82]x 82.55=x step 4: x=2.92E84 Can you please check this if am correct and am in the right path...am just not good with this chemisty stuff...forgive my ...
February 27, 2008

Chem
Consider a salt of the composition, A2B3. For this salt, pKsp=82.55. What is the logarithm of the molar concentrtion of this salt? I'm really at a loss of where to begin. We didn't have any examples like this in class. Thanks!
February 27, 2008

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