tt
Most popular questions and responses by tt
Chemistry
OK I just need help with two final problems that I am stuck on: The problem states the calcium carbonate in limestone reacts with HCl to produce a calcium chloride solution and carbon dioxide gas CaCO3(s)+2HCl(aq)>CaCl2(aq)+H2O(l)+CO2(g) 1)Find how many
asked on December 9, 2010 
math
Lake superiorhas a depth of 1.333 thousand feet.there are 5,280 feet in one mile. How deep is Lake Superior?
asked on November 5, 2012 
calculus and geometry
how close does the semicircle y=radical(16x^2) come to the point (1,radical3)?
asked on November 18, 2008 
physics
A microwave draws 5.0 A when it is connected to a 120 V outlet. If electrical energy costs $0.090 per kW·h, what is the cost of running the microwave for exactly 6 h?
asked on November 20, 2013 
maths
A famer has twice as many cow as sheep. After he sold 375 cows and another 12 cows died, he had half as many cows as sheep left. How many cows remained.
asked on May 17, 2015 
Chemistry
Calculate the molarity of the following solutions: 5.0g of KOH in 4.0L of KOH solution I went from grams of KOH to moles of KOH to molarity but still got the wrong answer... 5.0g KOH X 1 mol KOH/56.108g KOH = 5.0 mol KOH/56.108=0.0891 mol KOH/4.0L and got
asked on December 9, 2010 
math
PROVE THAT IF TWO LINES INTERSECT THEN THIER UNION IS IN THE SAME PLANE
asked on November 7, 2018 
MATH
Dave takes out a 24year mortgage of 210,000 dollars for his new house. Dave gets an interest rate of 13.2 present compounded monthly. He agreed to make equal monthly payment, the first coming in one month. After making the 68th payment, Dave wants to buy
asked on September 17, 2016 
math
express 35c to $2.25 as a ratio in its lowest term
asked on April 9, 2019 
Chemistry
If aluminum has a density of 2.7g/cm^3,what is the mass,in grams of the foil? It states that a package of aluminum foil is 54.3 yd long, 14 inches wide, and 0.00035 inches thick.
asked on September 19, 2010 
chem
What is the wavelength of a 1400 kg truck traveling at a rate of 72 km/h?
asked on April 29, 2010 
us history
what factors finally turn the tide for womens suffrage? On what grounds did people resist womens suffrage? what is the significance of the phrase"the perfect thirtysixth"?
asked on January 27, 2008 
Chemistry
If aluminum has a density of 2.7g/cm3,what is the mass,in grams of the foil?
asked on September 19, 2010 
Algebra
A kitten weighs four pounds and2/3 of a fifth pound. Which mixed number represents the kitten's weight?
asked on January 30, 2017 
math
Susan counted a total of 36 red and green cars in the parking lot. There were 8 times as many red cars as green cars. How many red cars did Susan count.
asked on November 22, 2015 
chemistry
1. A solution of sodium oxalate has a pH of 7.82. The [OH] in mol/L must be which of the following: a) 6.18 b) 1.5 x 108 c) 6.6 x 107 d) 7.82 e) 7.82 2. When 0.93 mol of O2 and 0.56 mol of NH3 are mixed together and allowed to come to equilibrium
asked on August 3, 2011 
maths
Bob, jean, and Paul have a total of 5590 stickers. Paul has twice as many stickers as Bob. Bob has 3 times as many stickers as Jean. How many stickers does each one have
asked on May 14, 2015 
physics
A particle of mass 86 g and charge 24 μC is released from rest when it is 67 cm from a second particle of charge −12 μC. Determine the magnitude of the initial ac celeration of the 86 g particle.
asked on July 8, 2010 
maths
String p is 3 times as long as string q. string r is 3m longer than half the total length of strings p and q. If the total length of all three strings is 54oocm what is the length of string r.
asked on May 17, 2015 
chemistry
1.If its molar solubility is designated by “x”, then which of the following expressions best represents the solubility product for the substance Ag2SO4? a) x2 b) 27x4 c) 4x3 d) 108x5 e) 3x4 2. Consider the equilibrium, 4HCl(g) + O2(g) 2H2O(g) +
asked on August 3, 2011 
english
Which of the following is an example of foreshadowing in To Kill A Mockingbird? Scout and Jem go see Mrs. Dubose. Miss Maudie's house burns down. Atticus discusses the Ewells with Scout after her first day of school. **my choice Scout does not like her
asked on November 16, 2016 
chemistry
1.) For which of the following substances is the standard enthalpy of formation equal to zero? a) water [H2O(l)] d) carbon dioxide [CO2(g)] b) lead [Pb(l)] e) tin [Sn(s)] c) carbon dioxide [CO2(s)] 2.) Consider the following four equations: 1. C6H6(l) +
asked on August 3, 2011 
phicis
A string of mass 10.0 grams and length L = 3m has its ends tied to two walls separated by distance D = 2m. Two masses of 2 kg each are suspended from the string as shown in the figure. If a pulse is sent from Point A, how long does it take to travel to
asked on December 6, 2015 
chemistry
Free Energy and Temperature A certain reaction is nonspontaneous at lower temperatures but becomes spontaneous when the temperature is raised sufficiently. For this reaction, S is positive. S is negative. H is negative. G becomes positive at higher
asked on October 18, 2011 
chemistry
For the equilibrium system below, which of the following would result in an increase in the concentration of CO(g)? 2H2(g) + CO(g) CH3OH(g) + 92 kJ a) decreasing temperature b) adding some CH3OH c) both b and d d) decreasing the volume of the container e)
asked on August 3, 2011 
Chemistry
If a person has a mass of 62 kg, how many pounds of water does she have in her body? And it gives the typical adult body containing 51% water
asked on September 19, 2010 
spanish
Subjunctive, infinitive, or indicative??? can anyone please correct me??? I try to practice it before my test but I'm really confused about it, and also please explain why I did it wrong??? muchas gracias!!!! Put ir in the nosotros subjunctive form vayamos
asked on May 7, 2009 
spanish
please check my grammar, and please tell me which one I can change to imperfect, because I try to write some sentences in preterit, and some in imperfect, thank you!!! AprendÃ espaÃ±ol porque quise mejorar mi espaÃ±ol. VisitÃ© los cuadros en el
asked on April 12, 2009 
Chemistry
I need help with this problem please Calculate the amount of reagents you take to prepare 200 g of 9.0% (m/m) glucose solution? I already found the mass of the glucose which was part one and got 18.0 g of glucose. Now they want the mass of water and I am
asked on December 9, 2010 
Chemistry
What is the largest atom in period 2 of the periodic table?
asked on October 17, 2010 
us history
In what ways did wilson support progressivism? In what ways did president Taft support the progressive agenda? Brefly describe theodore roosevelts progressive record what were some of the reform ideas at the turn of the century?
asked on January 27, 2008 
English
Change underline phrase to show possession.... Did they sleep on the benches of the park? benches of the park is what is underlined Answer Did they sleep on the park's benches?
asked on January 14, 2016 
maths
Wendy and Carol each bought the same laptop at the same price. In addition, Wendy bought a flash drive and Carlo bought an infrared mouse. The flash drive cost $60. Find the cost of the infrared mouse if Carol spent $1810 and Wendy spent $1840.
asked on May 14, 2015 
World History
What new techniques led to Henry Ford increasing production Why did factories use the division of labor on the assembly line
asked on October 8, 2014 
english
write a paragraph explaining how you can apply writing elements such as evaluation, summary, synthesis, analysis to enhance your academic and professional writing.
asked on June 13, 2011 
Chemistry
I am having trouble getting this starting and figuring out the correct steps...the problem is Calculate the final concentration of the solution in each question 1) Water is added to 0.270 L of a 6.00M HCl solution to give a volume of 3.00 L (Express
asked on December 9, 2010 
Chemistry
If a person has a mass of 62 kg, how many pounds of water does she have in her body?
asked on September 19, 2010 
algebra1
6x sq.24
asked on March 11, 2009 
12th Calculus
a 13ft ladder is leaning against a wall. suppose that the base of the ladder sides away from the wall at the constant rate of 3ft/sec 1. explain why the motion of the two ends of the ladder can be represented by the parametric equations: x1(t)=3t, y2(t)=0
asked on November 20, 2008 
government
How would you resolve the following conflicts between rights of the individuals and why? [g] MexicanAmerican students at Orange Coat College insist that tacos be served once a week in the Captain’s Table. [h] Fountain Valley High School has 80%
asked on November 10, 2008 
World History
To whom were economies connected and why
asked on October 8, 2014 
elgebra
2/3a +5/a
asked on May 16, 2013 
statistics
Undergraduates in a large university class were asked to record the time they spent on the most recent homework. In a histogram of the recorded times, the height of the bar over the interval “1 hour to 3 hours” is 4% per hour. The height of the bar
asked on March 28, 2013 
math
The length of a rectangle is 2 inches more than its width. The area of the rectangle is 15 square inches. What are the length and width of the rectangle?
asked on September 12, 2012 
simplest form
what is 1/2+5/6 in simplest form
asked on September 12, 2012 
science
Observe one hour in a classroom (preschool, prekindergarten, kindergarten
asked on November 2, 2011 
math
Mr.R covers 3/4 of his kitchen with tiles. He covers 1/4 of his kitchen with rug. what fraction of the kitchen is covered with a rug . A 4/9 B 1/4 C 3/16 D 1/3
asked on January 31, 2016 
math
Mrs.Fis has 1/3 of a stack of Quizzes left to grade. Of the stack,3/4 of the OERs are from Courage. What fraction of the entire stack is from courage. A 1 1/12 B 1/4 C 5/12 D 4/9
asked on January 31, 2016 
Chemistry
define pressure how many mm Hg are in 875.1kPa
asked on October 26, 2014 
alg
Solve for u: u − 2/ u − 4 + 6 = u + u − 6/ 4 − u
asked on April 4, 2014 
algebra
Simplify (2/3k)+(k/k+1) divided by (k/k+1) (3/k)
asked on April 4, 2014 
algebra
Solve for u: u − 2 u − 4 + 6 = u + u − 6 4 − u
asked on April 4, 2014 
math
what is the equal groups of 20
asked on January 31, 2014 
math
Whats the lcm of 32 40 and 49
asked on November 3, 2012 
math
Kate is at a Tshirt sale where she can buy one and get a second one for 30% off. She wants to buy two Tshirts listed at $19 each. How much will she pay?
asked on April 16, 2012 
Math  Trig
Given that a measures 25.1 mm, x measures 51.2 mm and angle b measures 82°, find the length of y 
asked on March 26, 2010 
government
What factors enabled congress to dominate the American government in the nineteenth century? Was the problem a series of weak president?
asked on November 22, 2008 
physiology
During myasthenia gravis, the body attacks the Ach receptors so they do not work; this could cause?
asked on November 20, 2008

science
H
posted on June 12, 2019 
Life orientation
People they will suffer because they will lost were they belong
posted on April 28, 2019 
social studies
Of the following statements, which accurately describes how foreign lands influenced East Africa? A. Through military conquests, soldiers from India brought Christianity to East Africa. B. Contact through trade resulted in a multicultural mix that
posted on March 6, 2019 
Language Arts 7 B
i need help with #9
posted on February 28, 2019 
chemistry
1. Why is the carbon dioxide gas that carbonates fountain drinks and powers paintball guns stored in sturdy canisters?
posted on February 22, 2019 
chemistry
1. Why is the carbon dioxide gas that carbonates fountain drinks and powers paintball guns stored in sturdy canisters?
posted on February 22, 2019 
Math
Nice
posted on February 18, 2019 
Math
36
posted on December 17, 2018 
math plz help
Yeah anonymous is right
posted on October 22, 2018 
Math HELP
Wrong, it’s 1. 0.875 2. 1.5 3. 4.375 4. 2/5 5. 7 1/100
posted on October 24, 2017 
Health
A B C D B
posted on October 24, 2017 
Math
913
posted on October 11, 2017 
technolgy
A C B A
posted on September 27, 2017 
Check my answers in history PLZ
anna is right dudes
posted on August 21, 2017 
RIFT VALLEY UNIVERSITY COLLEGE
prove the profit maximaization of the consumer i.e mn=p. according to cardinalist using mathmatical dervation
posted on July 27, 2017 
RIFT VALLEY UNIVERSITY COLLEGE
explain the prove the profit maximization of the consumer mu=p, according to cardinalist
posted on July 22, 2017 
Physics
tt
posted on June 30, 2017 
Math
8 weeks. 1007.5 = 92.50 92.50/12 = 7.70833333 This means 8 weeks.
posted on June 9, 2017 
pharmacy compding
14.4g
posted on May 29, 2017 
7th Grade Social Studies
i used to first correct answers and i only got 1 right
posted on March 3, 2017 
Math
the answer is 40
posted on February 27, 2017 
chemistry
45
posted on February 2, 2017 
English
Well? Did anyone get the answers?
posted on October 4, 2016 
social studies
^^ yo
posted on August 25, 2016 
Science
C
posted on May 12, 2016 
Science
Yes, C is correct. But actually, as a horseback rider, I have learned that a horse is most relative to a rhino.
posted on April 26, 2016 
Calculus!!!
14/(pi +4)
posted on April 22, 2016 
econs
hnh
posted on January 28, 2016 
economics
vf
posted on January 28, 2016 
English
gtg
posted on January 15, 2016 
7th grade social studies Ms. Sue please
thanks so much ms.sue u real cool
posted on November 9, 2015 
color theory
all of these answers are not correct. just a little FYI for everyone, study the material
posted on October 28, 2015 
Chemistry
How much energy must be absorbed by 20.0 g of water to increase its temperature from 43.0 °C to 83.0 °C? (C = 4.184 J/g°C)
posted on October 22, 2015 
chemestry
what role did marco polo play in the age of exploration
posted on March 26, 2015 
History
what role did marco polo play in the age of exploration
posted on March 26, 2015 
History
how did the english overcome the spanish armada
posted on March 20, 2015 
physics
The velocity would be four times as great and the time would be two times as great. So the power would be (43)(4)(2)=344 watts
posted on November 16, 2014 
Chemistry
please explain how you got the answer
posted on October 26, 2014 
World History
I still cant understand
posted on October 8, 2014 
World History
England industrial revoulution
posted on October 8, 2014 
Chemistry
247
posted on July 24, 2014 
3rd grade math
the equal groups of 20
posted on January 31, 2014