Aidan
Most popular questions and responses by Aidan
chemistry
Calculate the quantity of heat gained or lost: a) 3.50 mol H2O freezes at 0.0 oC b) 0.44 mol of steam condenses at 100 oC
asked on June 16, 2011 
Math
Rena knows a dollar coin has a mass of a little than 10 grams. She guessed that 1 kilogram of dollar coins would be worth dollars. Is this prediction reasonable ? Explain your thinking
asked on March 21, 2016 
math
there are 6 rows with 18 chairs in each row. in the center of the chairs, 4 rows of 6 chairs are brown. the rest of the chairs are blue. how many chairs are blue?
asked on October 6, 2014 
PLEASE HELP ME! CHEMISTRY
Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an
asked on August 29, 2011 
Math
A carpenter is putting a skylight in a roof. If the roof measures 4x + 5 by 7x + 7 and the skylight measures 10x + 10 by 2x + 6, what is the area of the remaining roof after the skylight is built. Put your answer in factored form.
asked on January 26, 2017 
Chemistry
Which is a conjugate pair in the following equilibrium? H2C2O4(aq) + HPO4(aq) 2 HC2O4(aq) + H2PO4(aq)
asked on September 1, 2016 
Chemistry
What types of intermolecular forces allow CO2 to dissolve in water? Do CO2 and H20 have a relatively strong or weak attraction?
asked on March 4, 2010 
Physics
Initial Statement: A soccer ball is kicked with an initial horizontal velocity of 15 m/s and an initial vertical velocity of 14 m/s. 1) What is the initial speed of the ball? 20.518 2) What is the initial angle θθ of the ball with respect to the ground?
asked on August 28, 2016 
math
five kids and three adults are going to the circus. kids tickets are on sale for half the price of adult tickets. the total cost is $60. how much is one kids ticket? how much is one adult ticket?
asked on January 21, 2015 
physics
It takes a plane flying at 150 km/h, 3.0 minutes to fly around a cloud at an altitude of 3000m. What is the diameter of the cloud
asked on January 25, 2011 
Physics
An 84 kg child descends a slide 7.2 m high and reaches the bottom with a speed of 3.30 m/s. How much thermal energy (in joules) due to friction was generated in this process?
asked on October 12, 2016 
Biology
what can you say about the amount of hydrogen ions relative tot he amount of hydroxide ions in a solution that has a pH of 2?
asked on December 15, 2015 
Physics
An automobile weighing 15,000 N crashes into a wall with a velocity of 5.00 m/s. If the car moves 0.150 m before coming to a stop, what average force does the wall exert on the car?
asked on December 12, 2015 
algebra
A cashier earn $x for an 8hour day. Write an algebraic expression in terms of x for the cashier's a) hourly pay B) weekly pay for a 5 day week c) yearly pay for year of 52 weeks
asked on January 25, 2010 
Math
For what real values of c is x^2 + 16x + c the square of a binomial? If you find more than one, then list your values separated by commas. Need help...
asked on January 4, 2017 
Chemistry
Are the molecular and imperical formula of lauryl alcohol the same? C12 H26 O?
asked on March 9, 2010 
MUSIC THEORY PLZ HELP
ive been writing a composition for my school jazz combo. its in E minor. apparently i have to write the tenor sax and soprano sax in a different key signature. whats going on? Compose the tenor and soprano parts in a key signature that is relative to E
asked on August 28, 2006 
Math
For a certain day, the depth of water, h, in metres in Tofino, B.C at time t, in hours, is given by the formula: h(t)=7.8+3.5sin[pi/6(t3)], tE[0,24]. Assume t=0 represents midnight. Provide an algebraic solution to determine the time(s) of day, the water
asked on July 23, 2016 
CHEMISTRY
IF you add ice at zero degrees celcius to a container of water maintained at 0degrees, the ice wil float on the water with that water finding a certain level in the container. As the ice melts, forming liquid at zero degrees, would you expect the water
asked on August 30, 2011 
Physics
Two students are on a balcony 24.3m above the street. One student throws a ball, B1, vertically downward at 12.5 m/s. At the same instant, the other student throws a ball, B2, vertically upward at the same speed. The second ball just misses the balcony on
asked on February 14, 2011 
Chemistry
Write equilibrium Constant expressions (k) for the following reactions: Ni(s)+ 4CO(g) Ni(CO)₄ HF(aq) H(aq) + F(aq) Cl₂(g)+2Br(aq) Br₂(l) + 2Cl(aq)
asked on January 27, 2010 
Math: Ratios
The ratio of the number of people who own an iPhone to the number of people who own a Samsung is 5 to 3. If 500 more people on an iPhone then a Samsung how many people on each type of phone?
asked on January 10, 2018 
Physics
Hail of a diameter of 1 cm fall at a constant speed of 25 m/s. There is estimated to be 120 hailstones per cubic meter of air. Mass of each hailstone is .482g. Assuming the hail does not bounce, find the average force on a flat roof measuring 10m by 20m,
asked on January 25, 2011 
Physics
A cue ball travelling at 7.6 m/s strikes the eight ball. The eight ball moves away from the collision at an angle of 22 deg. on one side of the initial line of travel. The cue ball moves away at 33 deg on the other side of the initial line of travel. What
asked on January 25, 2011 
Chem
Find the number of protons and electrons of N3. Would it be 7protons, and 4electrons? or 7 protons, and 7electrons?????
asked on August 29, 2011 
Science Chemistry
if 4.35 kj of energy are needed to heat a sample of water from 62C into steam at 100.0C what is the mass of the sample
asked on December 6, 2017 
Chem
Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an
asked on August 29, 2011 
maths
what is a* in algebra
asked on June 11, 2008 
physics
A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of vi = 13 m/s. The cliff is h=37 m above the water's surface, as shown below. With what speed does it strike the water?
asked on September 26, 2011 
Real World Problem: Ratios
The Alpine ski resort has started to keep track of the number of skiers and snowboarders who bought season passes. The ratio of the number of skiers who bought season passes to the number of snowboarders that bought season passes is 2 : 3. If 250 more
asked on January 11, 2018 
Math
A 25 ft. Ladder is placed 8 ft. From the base of the house. How high up the side of the house can the ladder reach?
asked on March 21, 2017 
math
4=4*62+3 Where should I put the grouping symbols to make this true??
asked on October 20, 2015 
9th Grade Biology
Assume that the fish have an average mass of 280g. The average caloric value is 8kcal/g. The heron is able to digest 60% of the fishes’ mass. How many will it need to eat to sustain its caloric intake of 3,000kcal/day?
asked on September 20, 2012 
physics
I am flying a plane capable of an airspeed of 100 km/hr. If the wind velocity was 45 km/h [95], in what direction would I have to fly in order to follow the track to my destination. And how long would this trip take? The distance between my starting point
asked on October 3, 2011 
chemistry
Will the following reaction occur Spontaneously? Show your work and reasoning in each case 1. Ca(s) + Sn^4+ >
asked on June 7, 2011 
Physics
A rocket moves upward starting from rest with an acceleration of 32.5 m/s^2 for 4.52s. It runs out of fuel at the end of the 4.52 s but does not stop. How high does it rise above the ground?
asked on February 14, 2011 
Chemistry
This lab is ruining me. isopentyl acetate is a blend of isopentanol, acetic acid, and sulfuric acid. How can products be determined from this information? ethyl acetate is ethyl alcohol, acetic acid and sulfuric acid. Octyl Acetate is noctanol,
asked on January 13, 2010 
Chemistry
What types of products would you expect to find in methyl salicylate, isopentyl acetate, ethyl acetate, and octyl acetate. I'm lost. Any ideas?
asked on January 13, 2010 
what is solution to 1+(3)=9
I'm having trouble with this question, not coming up with any of the possible answers. idk what I'm doing wrong
asked on August 26, 2018 
Math
Ben decides to get an ice cream cone. He is going to choose two toppings out of an available six. Ben also has to choose between a plane cone or a waffle cone. If he chooses vanilla ice cream how many different combinations of toppings and cones does he
asked on July 31, 2017 
physics
The terminal velocity of a 4×10−5 {\rm kg} raindrop is about 9 {\rm m/s}. Assuming a drag force F_{\rm{D}} =  bv, Assuming a drag force determine the value of the constant b.
asked on March 27, 2011

physics
tf
posted on April 29, 2019 
Physics
yo this is garbage, didn't solve my question
posted on January 3, 2019 
Algebra
Its a low ha ,or aloha
posted on April 4, 2018 
History
the answer is A
posted on February 21, 2018 
math
I need help with the same thing if someone could do it for me I could really use the help
posted on December 22, 2017 
Analogies
steam
posted on December 4, 2017 
Math
When is this ever gonna matter at all no guy is gonna randomly ask you if the Missouri River is 2540 miles long and the Mississippi River is 23/25 of that length then what is the length of the Mississippi River and technically the correct answer is 2,320
posted on October 19, 2017 
7th grade health please Ms. Sue?
_ _ ==
posted on February 20, 2017 
Health
a pound of butter since lean meat has less fat than a pound of butter therefore a pound of butter has more calories
posted on February 16, 2017 
Math I REALLY NEED HELP!!!!!!!!!
I think it would be A because if you do (2,2) and multiply both the 2's by 4 you will get (8,8). I hope this helps.
posted on January 19, 2017 
English
The part about Harambe made my day haha
posted on January 5, 2017 
math
35m,40m
posted on November 22, 2016 
Science
speed is made of two things they are? Distance and time.
posted on September 15, 2016 
Math
your answer is C, because 5*12=60 and 20*3=60 ok
posted on October 20, 2015 
Biology 205
what purification process bears Louis Pasteur name
posted on December 11, 2014 
Biology 205
fdtwtw
posted on December 11, 2014 
9th Grade Biology
Thank you SO much
posted on September 20, 2012 
PreAlgebra 7th grade.
(94  6) / (66/6) = 88 / 11 = 8 88 / 11 = 8 8 = 8
posted on September 20, 2012 
math
hello zach.
posted on February 1, 2012 
math
90% by the way when converting decimals to percent times it by 100
posted on October 3, 2011 
PLEASE HELP ME! CHEMISTRY
Thanks!
posted on August 30, 2011 
algebra
You factor (x3)(x+8) x= 3,8
posted on August 30, 2011 
PLEASE HELP ME! CHEMISTRY
We get... OH wait, do we do 0.0569 X 1.8155g = 0.103g ? so cobalt60=0.103g
posted on August 30, 2011 
PreAlgebra
The coordinates would be along the 270degrees line. It would be along the yaxis between the third and four quadrant line.
posted on August 29, 2011 
chemistry
you use the density formula density=mass/volume and solve
posted on August 29, 2011 
Chem
thank you!
posted on August 29, 2011 
Chemistry
Thanks so much for the help.
posted on March 4, 2010 
Chemistry
what happens at the molecular level if the temperature of a CO2/H2O solution increases? I know that has the temp. goes up the solubility decreases, but i don't really know what that means.
posted on March 4, 2010 
Chemistry
when the element have different states, ie. (aq) (s) (g) etc. doesn't that change the way you write the constant expressions?
posted on January 27, 2010 
Chemistry
This lab is ruining me. isopentyl acetate is a blend of isopentanol, acetic acid, and sulfuric acid. How can products be determined from this information?
posted on January 13, 2010 
maths
sorry what is a * in algebra
posted on June 11, 2008