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Jen
Questions and answers by visitors named
Jen
, page 9
Questions (1,135)
You mix 40.0 g of ethanol (C2H5OH, molecular weight = 46.1 g/mol) and 60.0 g of water (molecular weight = 18.0 g/mol) The
13 answers
995 views
A dynamic equilibrium, Ag2CO3(s) <=> 2Ag+(ag) , CO3 2- (ag), what affect does the addition af HCl have on the system? Does it
3 answers
1,766 views
Alonzo applied for a job to be an administrative assistant.He had to take a typing test. His words per minute were translated
1 answer
438 views
Does adding boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip increase,
3 answers
1,257 views
Seek power series solution of the given differential equation about the given point x0; find the recurrence relation.
(1-x)y'' +
1 answer
465 views
A 115 mL sample of a 10.0 M ethylene glycol (C2H6O2) solution is diluted to 1.30 L. What is the freezing point of the final
3 answers
1,220 views
a book having a mass of 1.3kg lies on a shelf 1.8 m above the floors in a room whose ceiling is 2.5 m high. What is the books
1 answer
1,030 views
what's the pattern for
2,3,__, 7, 11, 13, 17
3 answers
401 views
I need help please! You have been given 40ml of a 0.6M solution of NaCl and 40ml of a 0.1M solution of KCl. You are also given
1 answer
464 views
An object moving in the positive x direction went from a velocity of 2.5 km/s to a velocity of 8.0 km/s in 6.2 seconds. What's
2 answers
861 views
A block is pulled to the right across a alevel surface at a constant velocity of a horizontal force of 16 newtons. what is the
4 answers
577 views
A Block has a mass of 50.0 kilograms. the coefficient of static friction between the block and the level floor on which it rests
2 answers
579 views
a truck is traveling in a straight line goes 60km in 83minutes. what is its average speed in km per hour?
1 answer
367 views
an object moving in the positive x direction went from a velocity of 2.5 km/s to a velocity of 8.0 km/s in 6.2seconds. what was
1 answer
339 views
how do you convert 558 kelvins to degrees Celsius?
4 answers
481 views
Galois drove 40kilometers due west in 9hours and then drove 62kilometers due north in 5 hours.
What was his dispacement? What was
3 answers
451 views
How do you find the total mass of two objects that weigh 111 newtons and 218 newtons?
1 answer
428 views
The density of an unspecified material is 3.27 g/cm (cubed) . if the mass of a block of this material is 10.9kg, what is the
4 answers
1,289 views
Three forces are applied to a box wrench. find the total torque about the bolt in newton-meters caused by these forces. Is the
2 answers
809 views
a 1462 kilogram block was lifeted vertically at a constant velocity a distance of 0.08 x 10(to the 6th power) meters in
1 answer
395 views
A female whose mass is 130 kilograms is standing on a scale in an elevator that has an initial downward velocity of 6 meters per
3 answers
392 views
Forces of 1,5,3, and F newtons are applied to a weightless board that rests on a fulcrum. The board doesn't rotate-what's the
1 answer
419 views
Trenton struggled as he lifted a 27kg mass vertically a distance of 9 meters in 4minutes with a constant velocity.
A-how much
3 answers
468 views
A weightless beam rests on two supports. The beam supports a weight of 120 newtons. What are the magnitudes of the forces on
3 answers
922 views
if the pulleys are massless and frictionless and the rope is of negligible mass, and aristotle wanted to raise the 332 newton
2 answers
665 views
what's the density of a box whose weight is 1648 newtons and whose volume is 2.8 cubic meters? Will it float in a liquid whose
2 answers
604 views
A car slowed down at a constant rate from 32meters per second to 3.0 meters per second in 9.0 seconds. What was the distance the
4 answers
418 views
A particle moved along the x axis with a constant acceleration of -85.0 meters per second squared. The initial position of the
3 answers
530 views
A wheel is rolling ithout slipping at 487 meters per second to the right on a level surface. the diameter of the wheel is 100
3 answers
475 views
The liquid in the tube has a density of 1.48 g/cm^3 . The atmospheric pressure is 1.013 X 10^5 newtons per square meter. What is
1 answer
438 views
Find the magnitude of the gravitational attraction force that the earth exerts on a 62-kilogram astronaut who is 8.00 X 10^7
5 answers
1,046 views
A block of mass 77.0kg is placed at the top of a frictionless plane that is inclined 46 degrees to the horizontal. The height of
1 answer
394 views
From a point on a straight road, Nico and Maria are riding bicycles in the same direction. Nico rides at 12mph and Maria rides
5 answers
1,009 views
When 2.25 g of a nonelectrolyte solute is dissolved in 125 mL of water at 22 °C, the resulting solution exerts an osmotic
2 answers
616 views
A student needed to determine the percent composition of a mixture that contained fluorene and benzoic acid. The student took
3 answers
580 views
A mixture of two compounds, A and B, was separated by extraction. After the compounds were dried, their masses were found to be:
2 answers
992 views
Assume the solubility of benzoic acid in ice-cold water is 1.70 g/L and the solubility of benzoic acid in hot water is 68.0 g/L.
3 answers
923 views
Why is it possible to use melting point to distinguish the different stereochemistry of the
products? (Hint: what is the
1 answer
382 views
Suppose you have a strong peak at 2230 cm–1. What is the wavelength of the radiation that was absorbed?
4 answers
1,832 views
Sort the compounds: conjugated or non conjugated.
-but-2-enoic acid -butanoic acid -hex-4-en-3-one -hexan-3-one
4 answers
1,808 views
word that means the division of land
1 answer
294 views
A certain freely falling object requires 1.50 seconds to travel the las 30.0 meters before it hits th ground. From what height
3 answers
2,606 views
Multiplying Rabbits
Suppose that a pair of rabbits produces six offsrping: 3 males and 3 females. Assumes that no offspring die.
3 answers
795 views
How can community growth affect local ecosystems?
1 answer
251 views
One buffer solution used to calibrate a pH electrode was made by dissolving 2.24g of potassium propanoate, C2H5COOK, in 250cm3
2 answers
831 views
Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans
1 answer
450 views
MX2(s)<--> M2+(aq)+ 2X-(aq)
ksp=[M2+][X-]2 the question asks.. why is [MX2] not used in the expression for the equilibrium? is it
1 answer
405 views
If 75mL of a hard water sample required 23.00 mL of .200 M EDTA, calculate the total hardness
1 answer
350 views
Your physics teacher drives an ideal frictionless car of mass 1000 kg which coasts along the level road to his home at a
1 answer
1,069 views
How would you prepare a supersaturated solution of CuSo4 in 100ml of water
2 answers
719 views
Calculate the pH of 30.0 mL of 0.025 M NaOH
1 answer
308 views
Calculate the pH of 30.0 mL of 0.025 M NaOH
1 answer
312 views
How many kilograms of chalcopyrite must be mined to obtain 315g of pure Cu?
4 answers
1,193 views
Beer cans are right circular cylinders. My algebraic ale and logarithmic lager cans, from snide brewery, have dimensional units
1 answer
380 views
149ml bubble of hot gases at 217 degrees celcius and 1.78 atm escapes from an active volcano. What is the temperature, in
3 answers
544 views
Beer cans are right circular cylinders. My algebraic ale and logarithmic lager cans, from snide brewery, have dimensional units
4 answers
834 views
ABC Bank offers a savings account with 4.5% compounded quarterly. Find the APY the bank's savings account offers (round your
3 answers
1,208 views
Given the following question:
-3e^(-2*t)*sin(pi*t + pi/3)] How do I find a) period b) frequency c) time (phase) shift d) time
1 answer
340 views
bob can fill bucket in 25 seconds in the sink, sue can fill same bucket in 17 seconds with hose, how much longer will it take
1 answer
354 views
To find 6x8 i can use the facts for 5x4 and 1x4. do you agree, if so explain
2 answers
672 views
Which of the following pairs of compounds would NOT make a hydrogen bond with each other?
CH3 and H20 H20 and HF NH4 and HF H2O
2 answers
688 views
Find a subset of R^2 which is not of the form AxB where A and B are subsets of R.
1 answer
316 views
Please help me with this dilution.
Given a very concentrated tube of virus. Apply serial dilution to make 1:7500 dilution. Dilute
1 answer
452 views
Explain how to prepare 1L of a buffer at pH 7.4 using 1M hypochlorous acid (Ka = 3.5 x 10-8) and a 1 M NaOH solution. Indicate
1 answer
425 views
Explain how to prepare 1L of a buffer at pH 7.4 using 1M hypochlorous acid (Ka = 3.5 x 10-8) and a 1 M NaOH solution. Indicate
3 answers
484 views
ou are given the following data.
S(s) + 3/2 O2(g) → SO3(g) ΔH = -395.2 kJ 2 SO2(g) + O2(g) → 2 SO3(g) ΔH = -198.2 kJ
3 answers
1,915 views
What is the solubility of AgCrO4 (Ksp= 9.0 x 10^-12) in distilled water?
2 answers
724 views
53.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL. A 129-mL portion of that solution is diluted by adding 195
3 answers
552 views
If your use soymilk on regular basic, you should select a variety that’
A. fortified with protein. B enriched with calcium and
1 answer
389 views
I keep trying to solve this by factring but I can't seem to get! It's so frustrating!
The problem is 1+tan2x=0 This is how I
2 answers
612 views
Simplify the rational expressions,if possible.State the excluded values,if any.
1.5x-5/10x^2-25x+15 2.w^2+6w+9/2w^2-18
1 answer
433 views
Do you know of any Mutiplying and dividing rational expression calculators that shows the steps?
3 answers
311 views
What is b^2-b/2
1 answer
269 views
What is b^2-b/2
1 answer
245 views
Solve the rational equation.
3/(x)+6/(x+3)=8/(x+1)
1 answer
304 views
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main?
A. What (time) did he
1 answer
364 views
An author of detictive novel is most lkely to use figurative language to
A. Entertain the reader. B. help the reader visualize a
6 answers
1,296 views
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main?
A. What (time) did he
7 answers
416 views
1. When author Sarah Orne Jewett Writes That Sylvia Lives “hart to Heat” with nature, she means that the young girl
A.
2 answers
730 views
1. When author Sarah Orne Jewett Writes That Sylvia Lives “hart to Heat” with nature, she means that the young girl
A.
2 answers
574 views
It's most accurate to say that interpretative literature
A. is intended to meet the reader's expectations. B. weaves exciting
5 answers
1,191 views
A novel differs from a short story because it
A. is more likely to include subplots. B. includes a theme C. is told as a
4 answers
496 views
If an author is skillful at representing the point of view and attitudes of a hobo, an nurse, a corporate CEO, and a variety of
2 answers
484 views
After having lived with her for a year, Chad studied Marilou's eyes across the table, realizing he had never had a clue about
2 answers
540 views
Among early epic poems, _____ is the story of a man who searches out a beloved friend in the land of the dead.
A. Beowulf B.
5 answers
552 views
Shall I compare thee to a summer’s day?
Thou art more lovely and more temperate: Rough winds do shake the darling buds of May,
3 answers
1,013 views
As we find with most songs, in poetry
4 answers
386 views
which of the following is not an authoritarian form of government?
A. Totalitarianism B. Absolute monarchy C. Dictatorship D.
5 answers
3,838 views
One factor determining the number of representatives for a given congressional district is the distribution of _____ within the
7 answers
5,494 views
The present-day Republican Party is descended from the ____ Party.
A. Anti-Federalist B. Democratic Republican C. Federalist D.
5 answers
2,622 views
The main downside of political action committees is
A. The powerful influence of PAC lobbies on legislation. B. their support of
2 answers
495 views
Which one of the following statements is an example of a complex sentence?
A. Neap tide is the best time for digging clams. B.
4 answers
380 views
What is the simple predicate of the following sentence?
The Saturn rocket made travel to the moon possible. A. Possible B. Moon
4 answers
511 views
Which of the following sentences is correctly punctuated?
A. the company held it's annual party at the convention center. B. Mr.
10 answers
1,397 views
In the sentence "I want to sleep when I'm tired," the words "to sleep" are a/an
A. indirect object. B. predicate adjective. C.
4 answers
466 views
When 5.00 g of barium hydroxide are added to 250.0 mL of 0.250 hydrochloric acid in a calorimeter, the temperature off the
1 answer
461 views
In which of the following sentence do you find a verb phrase?
A. I shall be all that I am and more. B. June was a collector of
1 answer
404 views
Given f(x)=6x^4-7x^3-23x^2+14x+3, approximate each real zero as a decimal to the nearest tenth.
1 answer
408 views
In which of the following sentences doe you find a verb phrase?
A. I shall be all that I am and more B. June was a collector of
4 answers
484 views
Which one of the following is a complex sentence?
A. I would like to visit the Kinshasa, but I understand the city is unsafe for
1 answer
372 views
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