Sunday
September 21, 2014

Posts by chloe


Total # Posts: 376

Chemistry
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
February 26, 2013

Chemistry
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
February 26, 2013

CSU
what is the freezing point of 16.7g of LiCl in 136g of water, assuming complete dissociation for water kf= -1.86/mol
February 26, 2013

Math-grade 4
thank you ms. sue.my mom said the same thing.
February 4, 2013

Math-grade 4
I have 12 with a remainder of 3. my teacher wants us to round and estimate. please help! do I round it to 7 divided by 70?
February 4, 2013

Math-grade 4
what is the estimated quotient of 6 divided into 75?
February 4, 2013

math
katie is 4 years younger than sylvia. let k represent katie's age and let s represent slyvia's age.
January 22, 2013

algebra
It's m-3
January 9, 2013

MATHS
Is there any reason why f(g)=g^2+3 why do we replace the x with g? Sorry steve im trying my hardest to understand this
December 19, 2012

MATHS
Thank you steve It says i need to find f(g), i got a different result for some reason help please! And also in the second part, how did you get g^-1 = (x-1)/2 Thank you steve x
December 19, 2012

MATHS
Critical help please. Level 3 maths algebraic methods is really hard. Q) Two functions f and g are defined by f:x (arrow) x^2 + 3 g:x (arrow) 2x+1 Find a) the function fg b) solve the equation f(x)=12g^-1(x) I need to show my working out, please help someone
December 19, 2012

Maths
If tom got 200 euro for his birthday. He spent 1.0 how much did he spend?
December 6, 2012

English
What type of poem is this ? We found his flag one bitter morning And knew our hopes had come to woe. We had come pursuing glory But ended freezing in the snow. 1. The stanza of the poem offers an example of (1 point) slant rhyme. end rhyme. perfect rhyme. * internal rhyme. I ...
December 5, 2012

Math
Mrs. Yale wrote a number between 35 and 48 on her board. The sum of the digits is 7. What number did Mrs. Yale write on her board?
October 23, 2012

English
Yes, I know what similes and metaphors are. My question is where are their examples of similes and metaphors in the story?
September 18, 2012

English
In the story The Necklace written by Guy de Maupassant what are the examples of similes and metaphors?
September 18, 2012

ashworth
i go to the same school for homeschooling and i need help with the same question
July 8, 2012

Business law
The state of Confusion enacted a statute requiring all trucks and towing trailers that use its highways to use a B-type truck hitch that is presently being manufactured by only one manufacturer, which is located in Confusion. The result of this statute is that any trucker who...
June 27, 2012

chemistry
a 3.00g sample of baking soda is heated and decomposes according to the reaction below. Calculate the theoretical yield in grams for each of the three products Na2Co3. H2O, CO2
June 17, 2012

chemistry
From the following Information, calculate the standard change of enthalpy for the combustion of coal. SHOW WORK AND BALANCED REACTION!!! Compound DeltaHf (kj/mol) Coal 0.0 Carbon dioxide -393.5 Water (l) -285.9 Oxygen 0.0
June 12, 2012

chemistry
From the following Information, calculate the standard change of enthalpy for the combustion of coal. SHOW WORK AND BALANCED REACTION!!! Compound DeltaHf (kj/mol) Coal 0.0 Carbon dioxide -393.5 Water (l) -285.9 Oxygen 0.0
June 12, 2012

chemistry
What is the molar solubility of Sr3(AsO4)2 and the concentration of Sr^+2 and AsO4^-3 in a saturated solution at 25C? the Ksp is 1.3 E -18. Show the balanced reaction.
June 10, 2012

Math
How would I prove: 2^n + 2^n = 2^(n+1) The question asks for correct formatting in giving proof however I don't recall learning this before. Any help would be appreciated!
May 28, 2012

Math
12. A particular power boat travelling at V0 km/h when its power is turned off it will have its speed V given by V(t) = V0 x 10^-0.18t where t is the time in seconds since the engine was turned off. If this boat was travelling at 50k/h before powering down, construct a table ...
May 28, 2012

math
THANK YOU MY GOD YOU SAVED MY LIFE
March 21, 2012

Chemistry
If 150.0 grams of iron at 95.0 degrees Celcius, is placed in an insulated container containing 500.0 grams of water at 25.0 degrees Celcius, and both are allowed to come to the same temperature, what will that temperature be? The specific heat of water is 4.18 J/g degrees ...
February 22, 2012

Geometry
i have the same question in my class too so thank you
February 14, 2012

Physics
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.15 m/s at an angle of 18.5o below the horizontal. It strikes the ground 3.30 s later. How far horizontally from the base of the building does the ball strike the ground? What ...
February 7, 2012

physics
Describe in detail an experiment to find out the half life of a radioactive material
January 31, 2012

physics science
Please can you help as I am stuck, Describe ib detail, how you would carry out an investigation to measure the density of a block of aluminium? Thankyou
January 31, 2012

physics science
Sorry can someone please so me how to do this thanks
January 31, 2012

physics science
Sorry I don't understand this I have do decribe in detail the investigation could you please give me some pointers on how to start Thanks again
January 31, 2012

physics science
Please can you help as I am stuck, Describe ib detail, how you would carry out an investigation to measure the density of a block of aluminium? Thankyou
January 31, 2012

Calc
We are working on finding the intervals of convergence of power series in class. Why do we not have to test for the convergence of the endpoints for geometric series? They always seem to diverge. Is this a set rule when working with the geometric series for this type of problem?
December 1, 2011

irish
thank you they were very helpful and thank's again
November 30, 2011

irish
im sorry for being cheeky i just find this hard
November 30, 2011

irish
its not an assignment and i was only asking if anyone understood this im sorry ok
November 30, 2011

irish
25 sentences on how you WILL SPEND! a day either at the weekend or tomorrow, a school day, or any piece of writing in the future tense. in irish can you help with a couple of them please!
November 30, 2011

health and social care
can you tell me about the nature vs nurture debate please thankyou
November 16, 2011

Maths
In the spring, 80% of the sheep in a flock of sheep had lambs. of those sheep with lambs, 30% had one lamb, 40% had two lambs and the rest had 3 lambs. a total of 240 lambs were born. how many sheep are in the flock? you must show your working.
November 7, 2011

science
please help
November 6, 2011

science
preparation of copper sulphate crystals excess copper oxide is needed above a)how do you know the solid is in excess? b)how do you remove the excess? c)what colour is the solution? d)give the next to steps to make crystals?
November 6, 2011

MATHS
the 50p is a 50p piece it says in the book it is less than 50p (money)
November 5, 2011

MATHS
please help
November 5, 2011

MATHS
matt and ruba each have one coin. The total amount of money is less than 50p. work out the probability that exactly one of the coins is a 10p piece. assume that all possible coins are equally likely.
November 5, 2011

maths
please help as soon as possible
November 4, 2011

maths
matt and ruba each have one coin. The total amount of money is less than 50p. work out the probability that exactly one of the coins is a 10p piece. assume that all possible coins are equally likely. please can you explain i have to know how to do this
November 4, 2011

CHEMISTRY
Thank you
November 2, 2011

CHEMISTRY
thank you so is AL2O3 3 elements Ca(HCO3)2 4 elements
November 2, 2011

CHEMISTRY
please help
November 2, 2011

CHEMISTRY
how many elements in (NH4)2SO4
November 2, 2011

chemistry ASAP
name the following: H2SeO3 H2TeO2 PO3^3- HCLO4 Please explain how to find the names !!!!!
October 31, 2011

Physics
The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf induced in the rod ...
October 19, 2011

math
what is the total price of a sweatshirt that is priced at $48 and taxed at 6.5%?
October 11, 2011

6th
what is the sum of 3142,6328, and 4743 to the nearest thousand?
October 6, 2011

maths
a car travels at a speed of 35mph how long would it take a car to travel 7miles
October 3, 2011

physcis!
A car accelerates from rest at 4.9 m/s2. How much time does it need to attain a speed of 6 m/s?
September 18, 2011

physics! please help!
A car accelerates from rest at 4.9 m/s2. How much time does it need to attain a speed of 6 m/s?
September 18, 2011

Physics
Two ants race across a table 65 cm long. One travels at 5.76 cm/s and the other at 3.99999 cm/s. When the first one crosses the finish line, how far behind is the second one?
September 18, 2011

Calculus
The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the points listed above? ...
September 6, 2011

Physics
An object, that is 3.25 mm high is placed 16 cm in front of a lens. The image produced by this lens appears 6.0 cm behind the object, as the figure shows. (a) What is the focal length of this lens and what type of lens is it? (b) What is the height of the image? Is it real or ...
July 27, 2011

Physics
An object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave mirror having a radius of curvature of 22.0 cm. (a) Draw a principle-ray diagram showing the formation of the image. (b) Calculate the position, size, orientation (erect or inverted), and nature (...
July 27, 2011

Physics
A speedboat, starting from rest, moves along a straight line away from the dock. The boat has a constant acceleration of +3.00 m/s2. A siren on the dock is producing a 755 Hz tone. Assuming that the air temperature is 20.0oC, what is the frequency of the sound heard by a ...
July 27, 2011

sciencs
what is denser, 1 grams of gold or 1 kilograms of copper? why?
July 25, 2011

physics
additional information:the distance between wire 1 and wire is 25 cm and the distance between the wire 2 and point A is 12 cm.
July 25, 2011

physics
Consider two current carrying wires shown below. The current in the wire 1 is 4.5 A in the positive x direction. Find the magnitude and direction of the current in wire 2 if the net magnetic field at point A is to be 7.5 μT in the positive z direction (coming out of the ...
July 25, 2011

Physics
The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf induced in the rod ...
July 24, 2011

Physics
The conducting rod ab shown below makes frictionless contact with metal rails ca and db. The apparatus is in a uniform magnetic field of 0.855 T, perpendicular to the plane of the figure. The length L of the rod is 25 cm. (a) Find the magnitude of the emf induced in the rod ...
July 24, 2011

Physics
But that only gives me the force. I need the charge to help me find electric field
July 17, 2011

Physics
A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.
July 17, 2011

physics
Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4
July 17, 2011

physics
Find the magnitude and direction of the net electrostatic force exerted on the point charge q3 in the figure below, where q = +2.5 μC and d = 28 cm. The picture is of a square. q1=+q, q2=-2q, q3=-3q, q4=-4
July 17, 2011

Physics
Ok that makes much more sense. Thank you for your help!
July 15, 2011

Physics
I dont understand what you're trying to say when you're saying to add. Can you elaborate more?
July 15, 2011

Physics
A charge q =+ 4.11 x 10 - 9 C is placed at the origin, and a second charge equal to -2q is placed on the x axis at the location x = +1.00 m. (a) Find the electric potential midway between the two charges. (b) The electric potential vanishes at some point between the charges. ...
July 15, 2011

english / laungage
3. In “The Celebrated Jumping Frog of Calaveras County,” Jim Smiley’s horse wins races by A) attacking all the other horses in the race. B) raising a lot of dust so the other horses can’t see where to go. C) barreling past the other horses, after having a ...
May 24, 2011

microbiology
What dilutions would have to me made (from a starting concentration of 5 x 10^8 cells per ml) to achieve a final concentration of 1 x 10^3 cells per ml?
May 8, 2011

math
A crime wave
April 25, 2011

english
how do you start a good beggining of a story plz help
April 10, 2011

math
how do you do translations
April 9, 2011

College Algebra
Angela cam comlete a project in 2 hours. it takes Jason 3 hours to complete the same project. how long will it take for them to complete the project together?
March 30, 2011

science
thankyou jai
March 23, 2011

science
julie carried out a chemical reaction using magnesium and an acid the products of the reaction were magnesium chloride and hydrogen. julie collected a test tube of the hydrogen. describe what she should do to show that it was hydrogen.
March 23, 2011

science
julie carried out a chemical reaction using magnesium and an acid the products of the reaction were magnesium chloride and hydrogen. julie collected a test tube of the hydrogen. describe what she should do to show that it was hydrogen.
March 23, 2011

science
sorry theres something wrong with what has just happened
March 23, 2011

science
julie carried out a chemical reaction using magnesium and an acid the products of the reaction were magnesium chloride and hydrogen. julie collected a test tube of the hydrogen. describe what she should do to show that it was hydrogen.
March 23, 2011

General
An advertisement has the best chance for success if it: is accompanied by loud music and rapid banter. is above threshold. contains a single subliminal message. contains a grouping of words repeated below threshold.
March 19, 2011

Psychology
Which one of the following statements about the gate-control theory is true? Pain impulses create a gate leading to the brain. The brain is capable of generating pain on its own. The gate closes when pain messages go to the brain. Damage to small nerve fibers lets pain through...
March 19, 2011

Psychology
The "face module," located in the right temporal lobe of the brain, explains why: the cells fire when a dog lover looks at pictures of show dogs. infants are not afraid to go to strangers. ganglion cells in this area respond to simple features. we need only the right...
March 19, 2011

Chemistry
EEG, PET, and TMS are all: (Points: 5) laboratory observations that introduce experimenter bias into the study. descriptive methods for studying the brain. standardized methods for studying the brain. experimentally controlled technologies for brain-wave analysis. I think it ...
March 17, 2011

Science
The brain can be studied by using: (Points: 5) electrical, biochemical, and magnetic means. radio frequencies, computers, and neurotransmission. neurotransmitting, electrical, and biochemical means. biochemical, neurotransmitting, and magnetic means. i think it is C but not sure
March 17, 2011

general
A tragedy hits a small town. The elementary school explodes into flames trapping several classes of second graders. Because the volunteer fire department will take too long to get there, teachers and classified staff remove all the children to safety without considering the ...
March 17, 2011

science
rosie tried to use a maganet to stick a memo on to her mirror it would'nt stick. explain why!
March 17, 2011

Psychology
Which one of the following statements about intelligence is the most accurate? IQ is a valid measurement, and environmental factors do not change mental ability. Intelligence is mostly genetic, has the most variability between groups, and is reliable regardless of the ...
March 16, 2011

maths
can you show me how to do it
March 16, 2011

maths
please help me
March 16, 2011

maths
shane wants to paint the outside of his house, the area to be painted is 217m2. five litres of paint will cover an area of 62m2. how many litres of paint will shane need to paint the outside of his house!
March 16, 2011

maths
thanks
March 15, 2011

maths
899
March 15, 2011

maths
895
March 15, 2011

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