Thursday
April 17, 2014

Posts by Jen


Total # Posts: 3,253

chemistry
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 solution increases from 25.0 C to 28.0 C. Calculate the enthalpy ( in kJ per mole of water) given the density of the hydrochloric acid is 1.01 g/mL and th...

chemistry
the concentration of urea in a solution prepared by dissolving 16g of urea in 39 g of H2O is ________% by mass. The molar mass of urea is 60.0 g/mol

Eng
Thank you

Eng
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. prepositional phrase. D. infinitive phrase. Answer is D

Eng
Thank you It's B

Eng
C. Mary remembered to buy milk didn't she? Comma should be after "milk" The answer is D. The local police asked the F.B.I. to assist with the case.

Eng
Answer "C". Mary remembered to buy milk didn't she?

Eng
Which of the following sentences is correctly punctuated? A. the company held it's annual party at the convention center. B. Mr. Jones visited the YMCA before becoming a member. C. Mary remembered to buy milk. didn't she? D. The local police asked the F.B.I. to assist ...

Eng
Thank you It's "made"

Eng
What is the simple predicate of the following sentence? The Saturn rocket made travel to the moon possible. A. Possible B. Moon C. Travel D. Made Answer is C

Eng
Thanks you

Eng
Which one of the following statements is an example of a complex sentence? A. Neap tide is the best time for digging clams. B. Sparrows as the bird feeder compete for seeds. C. The earth was spinning when Lucas firs saw Lucille. D. The crescent moon is a symbol of Islam. Answe...

math
A balloonist leaves the ground and ascends 52 ft into the air, releases air, and descends 27 ft. Then, she turns on the gas burners again and ascends 71 ft. What is her height above the ground?

Civic
The main downside of political action committees is A. The powerful influence of PAC lobbies on legislation. B. their support of the military-industrial complex. C. their opposition to democracy. D. the corporate groups can outspend the citizen groups. Answer is "D"

Civic
Thank You It's "C"

Civic
The present-day Republican Party is descended from the ____ Party. A. Anti-Federalist B. Democratic Republican C. Federalist D. Conservative Answer is "D"

Civic
Thank you

Civic
One factor determining the number of representatives for a given congressional district is the distribution of _____ within the state A. registered voters B. population C. jobs D. wealth Answer is "B"

Civics
"D" Direct democracy

Civics
which of the following is not an authoritarian form of government? A. Totalitarianism B. Absolute monarchy C. Dictatorship D. Direct democracy Answer is "C"

Eng B
A. meaning are hidden in precise words B each couplet must rhyme. C. sound and content have equal weight. D. there's no specific point of view. It's A meaning are hidden in precise words

Eng B
As we find with most songs, in poetry

Eng B
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, And summer’s lease hath all too short a date: Sometime too hot the eye of heaven shines, And often is his gold complexion dimm’d; And e...

Eng B
Gilgamesh

Eng B
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. Gilgamesh C. The Iliad D. The Odyssey Answer is "D"

Eng B
After having lived with her for a year, Chad studied Marilou's eyes across the table, realizing he had never had a clue about what make her tick." This sentence from a hypothetical nevel suggests voice? A. Third person restricted omniscience B. first person participan...

Eng B
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 other diverse characters, the author is demonstrating A. dramatic irony. B. negative capability. C. first person reporting. D. the will to power. Ans...

Eng B
Thank you

Eng B
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 third-person narrative. D. comprised rising action, a climax, and falling action. Answer is "A"

Eng B
Thanks It's "C"

Eng B
It's most accurate to say that interpretative literature A. is intended to meet the reader's expectations. B. weaves exciting action around a standard formula. C. contains or suggests universal truths. refers to today's hot topics. Answer is A

Eng B
1. When author Sarah Orne Jewett Writes That Sylvia Lives “hart to Heat” with nature, she means that the young girl A. Mistrusts her “dream of love.” B. Operates on instinct. C. It, literally, a woodland creature. D. Is most alive in the tranquility of twil...

Eng B
1. When author Sarah Orne Jewett Writes That Sylvia Lives “hart to Heat” with nature, she means that the young girl A. Mistrusts her “dream of love.” B. Operates on instinct. C. It, literally, a woodland creature. D. Is most alive in the tranquility of twil...

Eng B
Thank you

Eng B
"D" The recipe calls for one pint of (cream).

Eng B
Sorry it's denotative meaning

Eng B
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main? A. What (time) did he call? B. Do you know what the (owl) signifies? C. Deliver the (goods) soon, or else D. The recipe calls for one pint of (cream). Answer is "B"

Eng B
Ok, thank you Well it's "C" suggest hidden meanings

Eng B
An author of detictive novel is most lkely to use figurative language to A. Entertain the reader. B. help the reader visualize a character. C. suggest hidden meanings. D. mislead the reader. Answer is "B"

Literature
Which of the words in parenthesis in the following sentences is most likely to convey a denotative main? A. What (time) did he call? B. Do you know what the (owl) signifies? C. Deliver the (goods) soon, or else D. The recipe calls for one pint of (cream). Answer is "B"

algebra 1
Solve the rational equation. 3/(x)+6/(x+3)=8/(x+1)

algebra 1
What is b^2-b/2

algebra 1
What is b^2-b/2

algebra 1
Is there a name of the site

algebra 1
Do you know of any Mutiplying and dividing rational expression calculators that shows the steps?

algebra 1
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

Pre Calculus
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 worked the problem before: 1+((2tanx)/(1-tan^2x))=0 ((2tanx)/(1-tan^2x))= -1 Then I cross multiplied to get: -1 + tan^2x = 2 tanx Than I rearran...

Biology
a mother carried the sex-linked gene for color blindness and the father had normal color vision, what would be the probability of having a colorblind son? *using a Punnett Square

Fitness
If your use soymilk on regular basic, you should select a variety that’ A. fortified with protein. B enriched with calcium and vitamins. C. chocolate or vanilla flavored. D. Naturally fat fee I think the answer is "A"

statistics
A simple random sample size of n = 150 is obtained from a population whose size is N = 20,000 and whose population proportion with a specified characteristic is p = 0.6. What is the probability of obtaining x = 96 or more individuals with the characteristic P(p hat)≥0.64

social studies
Can't unscramble 3 middle eastern names...ihaaBm, Bpsouors, hrpuitReE esavr

chemistry
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 mL of water. What is the final concentration? Assume the volumes are additive.

social studies
Can't unscramble 3 middle eastern names...ihaaBm, Bpsouors, hrpuitReE esavr

chemistry
What is the solubility of AgCrO4 (Ksp= 9.0 x 10^-12) in distilled water?

history
thank you

history
Muslims gained military ideas during the Crusades. How was this a positive effect?

Chemistry
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 Calculate ΔH for the reaction below. S(s) + O2(g) → SO2(g)

Biochemistry
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 the volume of hypochlorous acid and sodium hydroxide to use.

Biochemistry
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 the volume of hypochlorous acid and sodium hydroxide to use.

finance
Assume investors expect a 2.0 percent real rate of return over the next year. If inflation is expected to be 0.5 percent, what is the expected nominal interest rate for a one-year U.S. Treasury security?

chemistry
Please help me with this dilution. Given a very concentrated tube of virus. Apply serial dilution to make 1:7500 dilution. Dilute virus in PBS

math
What is the height of a cliff if at 10 am the shadow is 2 feet long?

math
Find a subset of R^2 which is not of the form AxB where A and B are subsets of R.

biochem
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 and CH3COOH all of the following would make hydrogen bonds

math
To find 6x8 i can use the facts for 5x4 and 1x4. do you agree, if so explain

probability
for a small regional airline, the number of claims for missing luggage averages 70 per week. a. what is the probability that on a given day, there are fewer than 3 claims made against the airline? b. what is the probability that there are more than 3 claims against the airlin...

math
• regular rate: $2.10/lb • ship 101 to 500 lb, get a 20% discount • ship over 500 lb, get a 40% discount A large medical supply company has promised to donate 12 hospital beds and 4 wheeled stretchers over four months. Each bed weighs 58 kg and each stretcher we...

math.
A band poster that measures 90 cm by 40 cm is reduced by a scale factor of 1/6 so it can fit on a postcard. a) What are the dimensions of the postcard image? b) By what scale factor, to the nearest hundredth, was the area of the poster decreased in the reduction process? pleas...

math
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 bob to fill 15 buckets

Math
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 constant

Math
ABC Bank offers a savings account with 4.5% compounded quarterly. Find the APY the bank's savings account offers (round your answer to three decimal places).

maths-calculus
mean value theorem prove sq root 9.1 is less than or equal to 3+1/60

chemistry
How many different 5.00 d states does hydrogen have? please list them..

Intermediate college algebra
Beer cans are right circular cylinders. My algebraic ale and logarithmic lager cans, from snide brewery, have dimensional units called brewskis. The have a volume (in cubic brewskis) equal to the solution of the number of grams of radium 226 remaining after 4860 years when the...

CHE MISTRY
149ml bubble of hot gases at 217 degrees celcius and 1.78 atm escapes from an active volcano. What is the temperature, in celcuis, of the gas in the bubble outside the volcano if the new volume of the bubble is 164ml and the pressure is 0.770atm?

Intermediate college algebra
Beer cans are right circular cylinders. My algebraic ale and logarithmic lager cans, from snide brewery, have dimensional units called brewskis. The have a volume (in cubic brewskis) equal to the solution of the number of grams of radium 226 remaining after 4860 years when the...

Chemistry
How many kilograms of chalcopyrite must be mined to obtain 315g of pure Cu?

Chemistry
Calculate the pH of 30.0 mL of 0.025 M NaOH

Chemistry
Calculate the pH of 30.0 mL of 0.025 M NaOH

chemistry
the gas contained in a piston is compressed from an original volume of 1.15 L to a new volume of 0.45 L. Assuming that the temperature of the gas remains constant what is the new pressure exerted on the gas if the original pressure was 2.15 atm?

chemistry
the gas contained in a piston is compressed from an original volume of 1.15 L to a new volume of 0.45 L. Assuming that the temperature of the gas remains constant what is the new pressure exerted on the gas if the original pressure was 2.15 atm?

chemistry
How would you prepare a supersaturated solution of CuSo4 in 100ml of water

physics
Your physics teacher drives an ideal frictionless car of mass 1000 kg which coasts along the level road to his home at a constant speed of 48 km/h with the engine turned off. It then coasts 40 m up his sloping driveway and comes to rest at the top without any braking required....

chemistry
If 75mL of a hard water sample required 23.00 mL of .200 M EDTA, calculate the total hardness

chemistry
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 because they aren't used in the expressions?

math
Assume that the average annual salary for a worker in the United States is $30,500 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $6,250. Find the following: (A) What percentage of Americans earn below $19,000? (B) What p...

chemistry
One buffer solution used to calibrate a pH electrode was made by dissolving 2.24g of potassium propanoate, C2H5COOK, in 250cm3 of 0.20 mooll-1 propanoic acid.

Science
How can community growth affect local ecosystems?

Analyzing Data (HELP!!)
Multiplying Rabbits Suppose that a pair of rabbits produces six offsrping: 3 males and 3 females. Assumes that no offspring die. 1. If each pair of rabbits breeds only once, how many offspring would be produced each year for 5 generations? 2. Construct a graph of your data. Pl...

physics
A car accelerates uniformly from rest to a speed of 21.2 km/h in 8.3 s. Find the distance it travels during this time. Answer in units of m

Physics
A certain freely falling object requires 1.50 seconds to travel the las 30.0 meters before it hits th ground. From what height above the ground did it fall?

math
On our worksheet this is the same question, but ours states the original ratio of red to yellow as 3:4.

social studies
word that means the division of land

science
Express 2.5 km in m____________, 4.7 m in mm ____________, and 14 cm in μm

science
Suppose your room had been 20 meters wide. Express this width in μm

Chemistry IR Spectroscopy
It's correct! Thanks

Chemistry IR Spectroscopy
Sort the compounds: conjugated or non conjugated. -but-2-enoic acid -butanoic acid -hex-4-en-3-one -hexan-3-one

Chemistry
Thanks!

Chemistry
Suppose you have a strong peak at 2230 cm–1. What is the wavelength of the radiation that was absorbed?

math
Using the distributive property of multiplication over addition, we can factor as in x2 + xy = x1x + y2. Use the distributive property and other multiplication properties to factor each of the following: 47.99 + 47 (x+1)Y +(X+1) x^2y+z^x3

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