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Questions Asked on November 2, 2014

A 0.167-g sample of an unknown compound contains 0.00278 mol of the compound. Elemental analysis of the acid gives the following
1. 1 answer
2. asked by Rocky
3. 7,446 views
Ima Chemist found the density of Freon-11 (CFCl3) to be 5.58 g/L under her experimental conditions. Her measurements showed that
1. 2 answers
2. asked by please help
3. 6,317 views
A boy spent 1/4 of his money on sweets and 3/8 on bus fares. What fraction of his money is left?
1. 5 answers
2. asked by Help
3. 5,346 views
The mole fraction of neon in the air is about .0000026. If the average molar mass of air is 28.96 g/mol, what is the
1. 2 answers
2. asked by Sarah
3. 4,508 views
A car weighing 1.0 x 10^4N is parked on a 34 degree slope. The brakes fail and the car starts to slide down the hill. Assume no
1. 1 answer
2. asked by Andy
3. 3,828 views
lithium oxide is an effective absorber of carbon dioxide and can be used to purify air in confined areas such as space vehicles.
1. 1 answer
2. asked by !
3. 3,406 views
Semelparous organisms breed only once during their lifetime. Examples of this type of reproduction strategy can be found with
1. 1 answer
2. asked by Ian
3. 3,360 views
An ant is walking along the curve x^2+xy+y^2=19. If the ant is moving to the right at the rate of 3 centimeters/second, how fast
1. 1 answer
2. asked by Anonymous
3. 3,358 views
find the mass of a ball on a roof 30 meters high, if the ball's gravitational energy is 58.8 joules.
1. 1 answer
2. asked by Anonymous
3. 2,848 views
Wheat is poured through a chute at the rate of 10 ft^3/min and falls in a cone-shaped pile whose bottom radius is always half
1. 1 answer
2. asked by Vincent
3. 2,631 views
A right circular cylinder is changing shape. The radius is decreasing at the rate of 2 inches/second while its height is
1. 2 answers
2. asked by Sara
3. 2,408 views
As shown in the figure below, a bullet is fired at and passes a piece of target paper suspended by a massless string. The bullet
1. 2 answers
2. asked by Ellen Q
3. 2,301 views
The value of ΔH° for the reaction below is - 6535 kJ. __________ kJ of heat are released in the combustion of 16.0 g ofC6H6(l)
1. 1 answer
2. asked by Anonymous
3. 2,183 views
A rocket is fired vertically into the air at the rate of 6 miles/min. An observer on the ground is located 4 miles from the
1. 2 answers
2. asked by Paula
3. 2,084 views
A stone is thrown into a calm pond and circular ripples are formed at impact. If the radius expands at the rate of 0.5
1. 1 answer
2. asked by Vincent
3. 1,997 views
What is the maximum speed of a 3.40g particle that oscillates between x =2.0mm and x =8.0mm in the figure? (Figure 1)Description
1. 1 answer
2. asked by Dib
3. 1,990 views
Assume that a demand equation is given by q=9000-100p. Find the marginal revenue for the given production levels.a. 500 Units
1. 1 answer
2. asked by Duane
3. 1,990 views
Two forces are applied to a car in an effort to accelerate it, as shown below. The first force, F1 = 328 N, is applied at an
1. 1 answer
2. asked by akash
3. 1,964 views
A bacterial population grows at a rate proportional to the population size at time t. Let y(t) be the population size at time t.
1. 5 answers
2. asked by Lyca
3. 1,950 views
Given the following reactionsFe2O3(s) + 3CO (s) → 2Fe (s) + 3CO2(g)ΔH =-28.0 kJ 3Fe (s) + 4CO2(s) → 4CO (g) +Fe3O4(s) ΔH =
1. 3 answers
2. asked by Anonymous
3. 1,826 views
A rectangle is 2 feet by 15 inches. Its length is decreasing by 3 inches/minute and its width is increasing at 4 inches/minute.
1. 1 answer
2. asked by Anonymous
3. 1,778 views
A woman has money in two accounts. One account pays 7% annual interest, whereas the other pays 15% annual interest. If she has
1. 1 answer
2. asked by Chris
3. 1,637 views
Edwina is worried, anxious, and sure that something terrible is going to happen to her. She’s not sure what it would be, but
1. 2 answers
2. asked by Anonymous
3. 1,579 views
Worldwide annual sales of all cellphones were approximately−10p + 1,600 million phones when the wholesale price was $p. At
1. 1 answer
2. asked by Lisa
3. 1,567 views
The value of ΔH° for the reaction below is -1107 kJ:2Ba (s) + O2(g) → 2BaO (s) How many kJ of heat are released when 5.75 g
1. 1 answer
2. asked by Anonymous
3. 1,501 views
Need help writing a birthday card with 4 types of sentences? declarative, interrogative imperative and exclamatory?
1. 15 answers
2. asked by Lisa
3. 1,464 views
Can someone please explain why (-9)1/2 is not a real number but -9 1/2 is a real number
1. 3 answers
2. asked by Babydoll07
3. 1,435 views
Two lovers have a spat and swear they will never see each other again. The girl walks due south at 6 mph while the boy walks at
1. 2 answers
2. asked by Marie
3. 1,364 views
A bowling ball encounters a 0.760-m vertical rise on the way back to the ball rack, as the drawing illustrates. Ignore
1. 1 answer
2. asked by S
3. 1,305 views
What is the maximum speed of a 3.40g particle that oscillates between x =2.0mm and x =8.0mm in the figure? (Figure 1)Description
1. 1 answer
2. asked by Dib
3. 1,283 views
find the temperature increase in C expected for 1.00 L of water when it absorbs all of the energy from the combustion of 1.00 g
1. 1 answer
2. asked by Ade
3. 1,182 views
give the specific heat for aluminum is 0.900 J/g*c how much energy is required to raise 25.0 g of aluminum from 20.0 to 75.0
1. 1 answer
2. asked by sally
3. 1,160 views
A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the
1. 0 answers
2. asked by S
3. 1,150 views
Hi the question asks me to calculate the mass of calcium carbonate that must be decomposed to produce 14kg of calcium oxide.I
1. 2 answers
2. asked by Oli
3. 1,114 views
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom.1. Electrostatic
1. 8 answers
2. asked by Tiffany
3. 1,104 views
Can someone look over this? I've been working on wordiness, sentence structure, and repetition.Tangled and its Hidden Critique
1. 1 answer
2. asked by christine
3. 1,055 views
If the supply and demand functions for a commodity are given by 2p - q + 10 = 0 and (p + q)(q + 10) = 3642 respectively, find
1. 1 answer
2. asked by Steve
3. 1,020 views
A deposit of $10,000 is made in a trust fund that pays 4.9% interest, compounded monthly. What is the balance of the trust fund
1. 1 answer
2. asked by Kalani
3. 986 views
Find the lengths of the sides of the cylcic quadrilateral if one diagonal coincides with a diameter of a circle whose area is
1. 2 answers
2. asked by Jayson
3. 962 views
The maximum velocity of a roller coaster depends on the vertical drop from the top of the highest hill to the bottom of that
1. 1 answer
2. asked by Babydoll07
3. 959 views
a 1500kg car travelling east with a speed of 20m/s collides at an intesection with a 2500kg van travelling south at a speed of
1. 0 answers
2. asked by takunda
3. 958 views
hi, im not sure if all my answers are correct especially number 5. could any one check and tell me? please and thank you.1. Why
1. 1 answer
2. asked by Niah
3. 955 views
A sample of oxygen that occupies 1.00 x 10^6 mL at 575 mm Hg is subjected to a pressure of 1.20 atm. What will the final volume
1. 3 answers
2. asked by Sara
3. 935 views
A bottle of cordial contains 5litres ,of which 10% I'd pure fruit juice. many liters of water must be added to dilute to 4%
1. 1 answer
2. asked by julian
3. 917 views
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a
1. 1 answer
2. asked by Meylin
3. 909 views
A player throws a ball up and toward a wall that is 17 feet high. The height h in feet of the ball after t seconds after it
1. 1 answer
2. asked by none
3. 893 views
This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a
1. 2 answers
2. asked by Anonymous
3. 890 views
The Virginia Plan proposed all of the following except
1. 1 answer
2. asked by Anonymous
3. 888 views
The base of a triangle in terms of x is: 2^2+4x+2 and the height is x^2+3x-4Area=1/2(2x^2+4x+2) (x^2+3x-4)= 6x^2+2 (x^2+3x-4)
1. 2 answers
2. asked by Babydoll2007
3. 880 views
15. Bond ratings and prices A corporate bond with an 8.5 percent coupon has 10 years left to maturity. It has had a credit
1. 1 answer
2. asked by Anonymous
3. 878 views
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom.1. Electrostatic
1. 1 answer
2. asked by Tiffany
3. 847 views
When writing the description for the property you are going to search for, the description must be detailed:A. so the average
1. 2 answers
2. asked by Pat
3. 844 views
last homework question I cannot figure out.... H E L P :}a bullet is fired at and passes a piece of target paper suspended by a
1. 0 answers
2. asked by boyDoIneedHelp
3. 822 views
How can you solve an equation or inequality in one variable?
1. 1 answer
2. asked by Kimmy
3. 810 views
Nitrogen dioxide abstracts with water vapor to produce oxygen and ammonia gas. If 12.8 grams of nitrogen dioxide reacts with
1. 2 answers
2. asked by sally
3. 809 views
calculate the volume of 0.0321M NaOH that will be required to neutralize 25.00 mL of a 0.0399M hydrochloric acid solution.M1v1=m
1. 1 answer
2. asked by elizabeth
3. 808 views
When an investigator writes a conclusion in an investigative report based on his or her opinion, he or she is:A. properly
1. 1 answer
2. asked by Pat
3. 804 views
A block of mass m = 350 g is released from rest and slides down a frictionless track of height h = 58.9 cm. At the bottom of the
1. 0 answers
2. asked by Jamila
3. 800 views
A block M1 of mass 13.0 kg sits on top of a larger block M2 of mass 23.0 kg which sits on a flat surface. The kinetic friction
1. 0 answers
2. asked by Sarah
3. 799 views
If the supply function for a commodity is given by the equation p = q2 + 12q + 700 and the demand function is given by the
1. 1 answer
2. asked by Steve
3. 795 views
a man weighs 1370N on earth what would he weigh on jupiter where free fall acceleration is 25.9 m/s2 the acceleration of gravity
1. 1 answer
2. asked by Martin
3. 780 views
At the end of their paddling trip, Natalie and Herb drive back in separate vehicles. Natalie has 8 gallons of gas left in the
1. 2 answers
2. asked by Nicole
3. 779 views
3. Unbiased Expectations Theory One-year Treasury bills currently earn 5.50 percent. You expect that one year from now, one-year
1. 0 answers
2. asked by Anonymous
3. 775 views
Check my answers please?The Second Great Awakening was a conservative reaction to deism, the expanding frontier, & the
1. 1 answer
2. asked by Anonymous
3. 773 views
A projectile is fired at 12.5 m/s at an angle of 53.1 with the horizontal from a point 75m above the ground.A) How long does it
1. 2 answers
2. asked by Brooke
3. 755 views
At 23 oC the solubility of a gas sample is 0.05 g/L in water at 1.0 atm. What is the solubility when the pressure increases to
1. 1 answer
2. asked by Sarah
3. 748 views
how many twenties must be added to 3 tens to equal £2.10
1. 4 answers
2. asked by Help
3. 746 views
magnesium metal (1.00 mol) and a volume of aqueous hydrochloric acid that contains .500 mol of HCL are combined and react to
1. 1 answer
2. asked by Anonymous
3. 733 views
How do I find the number of energy levels in a positive and a negative ion? And also how do I find the number of electrons in a
1. 1 answer
2. asked by Anonymous
3. 731 views
It takes the bus an average of 20 minutes to arrive at a certain bus stop. A student is waiting for the nextbus to arrive. a)
1. 2 answers
2. asked by Sarah
3. 730 views
Suppose that in a large population the proportion of people that have a certain diseaseis 0.01. Use the Poisson approximation to
1. 3 answers
2. asked by andrea
3. 721 views
the length of a rectangle exceed its breadth by 4cm.if length and breadth are incresed by 3cm the aera of the new reactangle
1. 1 answer
2. asked by surya
3. 716 views
I don't know how to set up the journal entry (when I Google it it just gives me accounting journals). I also am not sure how to
1. 3 answers
2. asked by Cathy
3. 716 views
Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R.Li + H2O ----> KCI + F2 ---> Au
1. 2 answers
2. asked by Rose
3. 716 views
In 1907 Kennelly developed a simple formula for predicting an upper limit on the fastest time that humans could ever run
1. 1 answer
2. asked by Duane
3. 713 views
can someone edit this?To contrast, in the film Tangled (2010) the mother of Rapunzel, who is exhibited as a Queen, also falls
1. 3 answers
2. asked by christine
3. 705 views
the ages of two children are 11 and8 years. in how many years time will the product of their ages be 208
1. 2 answers
2. asked by Godwin
3. 695 views
A company uses activity-based costing. The company produces two products, 001 and 002.Information relating to 001 is as follows:
1. 0 answers
2. asked by Serenity
3. 695 views
a projectile is fired at 50 meters per second at an angle of 30 degrees below the horizontal off a cliff that is 50 meters high.
1. 1 answer
2. asked by Joanne
3. 692 views
Read the following passage and identify at least 3 elements of figurative language; explain how each element brings out the
1. 0 answers
2. asked by Megan
3. 686 views
4. Liquidity Premium Hypothesis Suppose we observe the following rates: 1R1 = 8 percent, 1R2 = 10 percent, and E(2r1) = 8
1. 1 answer
2. asked by Anonymous
3. 681 views
For class I read the poem by Wilfred Owen "Dulce et Decorum Est".I have most of my essay down but one paragraph where I focus
1. 1 answer
2. asked by Bethany
3. 676 views
You are to write a short C program.The program will input two numbers: 1) number of miles to ship a package, 2) and the weight
1. 0 answers
2. asked by med
3. 666 views
The Trouble with Television by Robert Mac NeilIt is difficult to escape the influence of television. If you fit the statistical
1. 6 answers
2. asked by Yvonne
3. 658 views
What can account for differences in the calculated value of a drug concentration in a sample as determined by standard curve
1. 2 answers
2. asked by Anonymous
3. 657 views
A company manufactures washers, about 5% of which are defective. If a random sampleof 100 washers are inspected, what is the
1. 1 answer
2. asked by ashley
3. 645 views
Many Americans settled in Texas illegally, in spite of the fact that it was claimed by the nation of(Mexico.) The revivals of
1. 1 answer
2. asked by Anonymous
3. 643 views
The area of a rectangle pool was 120 square meters. If the long side is 7 meters plus a number and the width is 6 meters. What
1. 1 answer
2. asked by Anonymous
3. 643 views
Determine all possible values of each quantum number (n, l, ml, and ms) for electrons in both the 2s and 2p subshells.for 2s the
1. 1 answer
2. asked by Feather
3. 642 views
Can you give me the steps to the answer?How many real number solutions are there to the equation 0 = –3x² + x – 4? 0 1 2 3
1. 5 answers
2. asked by Anonymous
3. 638 views
Can you tell me if my answers are correct for these problems?1. 3i - 10 --------- 8i - 5 Answer 74 65i ---- + ----- 89 89 2.
1. 1 answer
2. asked by John
3. 637 views
Determine Centripetal Acceleration acting on the person standing at the equator? (the radius of earth is given)
1. 0 answers
2. asked by Neha
3. 608 views
2. Interest rates A two-year Treasury security currently earns 5.25 percent. Over the next two years, the real interest rate is
1. 1 answer
2. asked by Anonymous
3. 604 views
A laser source emits lights of wavelength 62100m and has an output of 35mW calculate how many photons are emitted per minute by
1. 0 answers
2. asked by Uuu
3. 599 views
The caregiver uses a _______ for anticipating and dealing with the concerns of parents when they've enrolled or are enrolling a
1. 2 answers
2. asked by Amanda
3. 594 views
a place kicker must kick a football from aLint 36 meters from the goal. As a result of the kick, the ball must clear the
1. 1 answer
2. asked by Joanne
3. 591 views
An m=150 g block hits an M= 265 g block initially at rest on a horizontal surface. After impact they stick together and slide
1. 1 answer
2. asked by Serena
3. 586 views
Which of the following does Peter Singer assert about the principle of equality? (Points : 1)People should have equal rights
1. 0 answers
2. asked by Randy
3. 584 views
Larry kicked a ball at a 50 degrees angle to a direction north. It travels a horizontal distance of 20ft 9inchs before hitting
1. 1 answer
2. asked by Jenny
3. 581 views
Wheel Industries is considering a three-year expansion project, Project A. The project requires an initial investment of $1.5
1. 0 answers
2. asked by Osoro
3. 580 views

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