sim
Most popular questions and responses by sim
chemistry
a 5 g mixture of natural gas containing ch4 and c2h4 was burnt in excess of oxygen yielding 14.5 g of co2 and h2o.What is the weight of ch4 and co2 in the mixture
asked on July 25, 2013 
math
.divide AED 1380 among Ahmed John and Babita so that the amount Ahmed receives is 5 times as much as babita's share and its 3 times as much as John's share dear reiny i tried your way of doing it but i am unable to find it please help and my father gave me
asked on February 15, 2016 
math
Find the values of m and n if y^4 + my^3 + 2y^2 3y + n is divisible by y^21
asked on June 10, 2016 
math
Find the three consecutive odd numbers whose sum is 147.
asked on February 13, 2016 
science
1.scientists who capture fish from depths of 1000m or more for study have to bring them to the surface in pressurized containers. why do they do this? 2.a car of mass 600 kg has four tyres each of surface area 0.005m^2. determine the pressure exerted by
asked on February 15, 2016 
General Chemistry
If the pressure is 748 mmHg, and if h= 35mm, what is the pressure of the gas, expressed in atm, If the substance in the tube is oil having a density of 0.788 g/mL? The density of mercury is 13.6 g/mL.
asked on October 26, 2014 
math
1.a bus is carrying 40 passengers some with 25 rupees ticket and the remaining with 30 rupees ticket. if the total amount collected from these passengers is 1125 rupees. find the number of passengers who have taken 25 rupees ticket 2.divide AED 1380 among
asked on February 15, 2016 
physics
a ball has a mass of 0.5kg dropped from a cliff top, the ball srtikes the sea below at a velocity of 10m/s. (a)what is the kinetic energy of the ball as it strikes the sea? (b) what was its potential energy before it was dropped? (c)from what height was it
asked on December 9, 2011 
Chemistry grade 11
An organic compound is composed of C, H and O. A 0.1005 g sample of this is combusted, producing 0.2829 g CO2 and 0.1159 g of H2O. What is the empirical formula of this compound? If the compound has a molar mass of 14 g/mol. What is the molecular formula?
asked on January 10, 2015 
math
A number is divided into two parts such that one part is 10 more than the other. If the two parts are in the ratio 5:3. Find the number and the two parts
asked on February 13, 2016 
english
question on the poem road not taken 1. Which road does the poet choose and why? 2. Which road would you choose and why? 3. Does the speaker seem to be happy about his decision? Justify your answer. 4. The poet says “I took the one less travelled by / And
asked on June 20, 2016 
physics
A motor cyclist travelling at 12m/s decelerates at 3m/s^2. (a)How long does he take to come to rest? (b)How far does he travel in coming to rest?
asked on December 9, 2011 
Math (check)
Masaru works as a salesperson and earns an hourly wage plus commission.He works 35 hours per week, at a rate of $11.75 per hour. His commission is about $125.00 per week. his expenses account for about 85% of his income. A. How much money does he put into
asked on April 30, 2014 
Mathematics
The expression 1/3 log (a)3 log(b) is equivalent to_________, i know the answer but i don't know how to get it.
asked on December 16, 2012 
physics
Given. a = 25.1 cm and b = 51.2 cm and the forces are F1 = 10.3 N, F2 = 10.6 N and F3 = 14.7 N. The angle between F2 and the horizontal is θ = 27.9 °. Find the magnitude of the net torque on the wheel about the axle through O. Answer in units of N m.
asked on October 19, 2014 
Grade 11 Chemistry
calculate the molarity of cl ions in a solution made from mixing 50.0 ml of a 0.100 m/l solution of ferric chloride with 50.0 ml of a 0.500 mol/l solution of ammonium chloride
asked on March 28, 2015 
finite math
a cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. if at least one of the phones is found to be defective, then each phone in the batch is tested individually. find the probability that the entire batch will need
asked on November 24, 2013 
Grade 11 Chemistry
Calculate the concentration of I in an aqueous solution prepared in a 250 ml volumetric flask from 50.0 ml of a 0.840 mol/L aluminum iodide solution and 160.0 ml of a 0.500 mol/L tin(IV) iodide solution.
asked on March 28, 2015 
MATH
Q1. Prem scored 85 marks on a test containing 100 problems. He attempted all the problems and his score was calculated by subtracting two times the number of wrong answers from the number of correct answers. How many problems did she score correctly? Q2.
asked on February 13, 2016 
DEAR REINY
dear reiny i am sim who posted 4 questions this morning i am in dubai and my final examinations are after 13 days and by the way those questions were not my homework or assignment those were some sums which we get on our school website and i had a doubt in
asked on February 13, 2016 
math
The length of a rectangle is 8 metres less than twice its breadth. If the perimeter of the rectangle is 56metre, find its length and breadth.
asked on February 13, 2016 
math
A.) start by calculating how long it will take you to save enough money and pay cash with your potential $300.00/month savings, taking into account the $1000.00 you have already saved. B.)Now imagine you have invested your original $1000.00 savings. I.)
asked on April 22, 2014 
Socials 9
Propose some reasons why woman were unable to keep leadership positions during the reign of terror and it's aftermath
asked on February 10, 2014 
english
lor ullns daughter 1. The waterwraith was shrieking." Is the symbolism in the line a premonition of what happens at the end? Give reasons for your answer. 2. The lady faces a dilemma here. What is it? What choice does she finally make? 3. 'Lord Ullin
asked on June 20, 2016 
math
algebra grade 8 1.(2x^24)(2x^2+4) 2.(5yz+6x^2)(5yz6x^2) 3.(x^2+y^2)(x^2y^2)
asked on March 8, 2016 
Economics
Using the MundellFleming model, compare and contrast the impact of monetary expansion with low capital mobility under fixed and flexible exchange rates.
asked on September 14, 2011 
chemistry
26. The first five successive ionisation energies of an element are 0.807, 2.433, 3.666, 25.033, 32.834 MJ mol–1 . Which one element from those listed below could this element be? •(A) B (B) C (C) N (D) O (E) F
asked on August 30, 2011 
science
1.scientists who capture fish from depths of 1000m or more for study have to bring them to the surface in pressurized containers. why do they do this? 2.a car of mass 600 kg has four tyres each of surface area 0.005m^2. determine the pressure exerted by
asked on February 15, 2016 
english (hamlet)
Hamlet awaits the appearance of the ghost on a. The moor near the battles ground b. The birnam woods c. The ramparts of elsinor castle d. The cellar of the castle
asked on May 15, 2014 
computer science
Write a method main that demonstrates class Employee's capabilities by creating two Employee objects. Initialize one of the objects (give values to the instance variables) using the constructor and display its instance variable values through the display
asked on October 27, 2012 
physics
how do we calculate the height of a falling ball with a mass of 0.5kg and a velocity of 10m/s.
asked on December 9, 2011 
math
problem # 1 No Zeroes two numbers multiply to give 100 000. Neither of them contain a zero. What are the numbers? problem # 2 Junk Food a burger and a cola togerther cost $3.25. If the burger costs $1.75 more than the cola, how much does the cola cost? PLZ
asked on December 5, 2011 
science
what is apical meristem
asked on June 16, 2016 
Chemistry Honors
A sample of water has a temperature of 87.5 d/C. The volume of the sample is 430 mL. What mass of ice at 0.0 d/C will melt with this sample of water if the final temperature of water and melted ice is 0.0 d/?
asked on March 27, 2016 
math
The measures of two angles which form a linear pair are in the ratio 2:7. Find the measures.
asked on February 13, 2016 
English (hamlet)
King Hamlets supposed death was from who?
asked on May 15, 2014 
Math
Mathew has received $1 the first week, $3 the 2nd week, $5 the 3rd week and so on until he has received a total of $1 000 000. What amount did he receive the last week?
asked on March 22, 2012 
6th grade
If a ladder is on a house and the top is touching the house 8 feet above the ground, the bottom is touching the ground 6 feet away from the house, if you move the ladder in 1 foot how high will the ladder be touching the house.
asked on April 5, 2010 
math please help
Your parents have just brought you a care and now you have an opportunity to "deck it out." how would you change/ enhance your vehicle to make it your dream car? What features/parts would you add, including taxes. Imagine you have a job, $1000.00 in
asked on April 22, 2014 
physics 11
By how much would 1200 W kettle, which is 72% efficient raise the temperature of 0.60 kg of water in 3.0 min?
asked on December 20, 2012 
maths
rs3tu=1 2r+4s2u=2 3r+4s2t=0 r+2t3u=3 find the solution
asked on October 25, 2012

Math
the 2/5, is that of the whole or once the 1/4 is taken off?
posted on February 4, 2019 
statistics
thats wrong
posted on June 15, 2018 
Physics
10.1
posted on October 30, 2017 
physics
88s
posted on October 23, 2016 
Chemistry Honors
which equations did you use for this problem?
posted on March 28, 2016 
Math
ALEXIS in this type of question we do cross multiplication Seconds Literes 5 25 x 45 5*45=25*x x=45*5/25 x=9 so in 45 seconds 9 liters of water will flow from the faucet
posted on March 8, 2016 
math
thank you REINY
posted on February 15, 2016 
MATH
1.no:of problems=100 no:of incorrect questions=x no:of correct questions=100x 85=100x2x 85=1003x 3x=10085 x=15/3 x=5 no:of correct questions=100x =1005 =95 questions
posted on February 15, 2016 
math
184
posted on October 1, 2015 
Chemistry grade 11
sorry, i made a typo, the question says that the compound has a molar mass of 146 g/mol
posted on January 10, 2015 
Chemistry grade 11
I got C10 H20 O but that makes the molar mass 156, not 146 :( am i doing something wrong?
posted on January 10, 2015 
english (hamlet)
Thanks :)
posted on May 15, 2014 
Math (check)
Thank you Ms.Sue :) can you help me with B?
posted on April 30, 2014 
Math (check)
Whoops made a mistake i subtracted 536.25 by 455.8125 and got 80.4372
posted on April 30, 2014 
math
Oh. Can you try answering my other question than?
posted on April 22, 2014 
math please help
Car***
posted on April 22, 2014 
chenistry
a 5 g mixture of natural gas containing ch4 and c2h4 was burnt in excess of oxygen yielding 14.5 g of co2 and h2o.What is the weight of ch4 and co2 in the mixture.
posted on July 25, 2013 
math
maybe it's (6,9) or (6,12) either one
posted on January 5, 2012 
physics
WHAT does "a" stand for?
posted on December 9, 2011 
math
thanx reiny i realyy appreciate t ill try and answer ur question
posted on December 5, 2011 
math
ms.sue plz help me
posted on December 5, 2011 
chemistry
Well Dr Bob can you explain the rule for where you take from or add in transition metal ions?
posted on August 31, 2011 
chemistry
the answer is B, but can you explain the process to answering it?
posted on August 30, 2011