Tuesday

February 9, 2016
Total # Posts: 91,417

**Chemistry URGENT PLEASE PLEASE PLEASE HELP! **

Determine whether the solution is basic, acidic, or neutral. Write net ionic equations to show how it behaves in aqueous solutions. 1) Fe2(SO4)3 I know it is acidic Do I do hydrolysis equations for the net ionic or do I do redox reactions?
*November 5, 2015*

**math**

I have no idea
*November 5, 2015*

**Calculus**

Evaluate using integration by parts, substitution, or both if necessary. the intergral of cos 2x ln(sin 2x) dx My work: w= sin2x dw= 2cos2xdx 1/2 dw= cos2xdx 1/2 integrsl sign ln(w)dw u= lnw u'= 1/w v= w v'=1 1/2 [(lnw)(w)- integral sign (1/w)(w) dw] 1/2 (wlnw-w) Final...
*November 5, 2015*

**Quick English check**

Please check to if see if the vocab words are paired with the right sentences. The sentences are supposed to explain the vocab word. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been ...
*November 5, 2015*

**English**

The lack of exposure to the outdoors resembles social outcast in Tim Burton’s films creating the characters Edward Scissorhands and Willy Wonka to connect differently from others. Individuality is expressed specifically within these two films “Edward Scissorhands&#...
*November 5, 2015*

**Chemistry**

If I add 2ml of .1M of NaOH to a buffer system containing sodium acetate and acetic acid, what will happen to the acetate concentration? Will it increase or decrease?
*November 5, 2015*

**English**

Their isolation towards others expresses that them growing up in a different environment affects their social skills. Would I use affect or effect
*November 5, 2015*

**Math **

Jim runs 50% faster then Bob. In a 1200m race how much of a head start should Bob get to make the race fair? My solution: 50%= half Half of 1200m is 600m So the answer is 600m Am I right
*November 5, 2015*

**English check**

Please check to if see if the vocab words are paired with the right sentences. The sentences are supposed to explain the vocab word. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been ...
*November 5, 2015*

**6th grade Math**

1
*November 5, 2015*

**math**

A student version of the constitution fits a piece of paper that is 8 1/2 by 11 inches. which is the largest scale that can be used so that it fits the paper?
*November 5, 2015*

**math **

Someone runs 3/6 of a distance run and the other person runs 3/8 which one has ran the farthest
*November 5, 2015*

**Quick English check**

They are terms that is best evoked by each of the scenarios
*November 5, 2015*

**Quick English check**

Please check to if see if the capitalized vocab words are in the right spot. Correct me if I'm wrong. 1. The all circumstantial but it definitely does not look good for the suspect. (SUSCEPTIBLE) 2. I have been convinced to participate in the activity even though I think ...
*November 5, 2015*

**Math**

Stuff
*November 5, 2015*

**chemistry**

Precipitation of Ni2+ from a 25 mL aliquot of a solution of unknown concentration yielded 0.338 g of Ni(DMGH)2. Calculate the concentration of the Ni2+ solution
*November 5, 2015*

**Math**

This number has 4 places to the right of the decimal point. It has 2 hundreds, 3 ten thousandths, and 1 tenth. It is between 240 and 242. The thousandths place is one less than the ten thousandths and less than the hundredths. What are six numbers that match this data?
*November 5, 2015*

**Physics **

How much time does it take for a car to come to rest if it has an initial speed of 22m/s and slows with a deceleration of 6.1 m/s^2 Will my answer be 3.6 m/s^2
*November 5, 2015*

**math**

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of the room will be 150 square feet. Which expression finds the area of the scale drawing?
*November 5, 2015*

**ART CHECKING!!! PLEASE CHECK IT!!! :(**

1.C 2.A 3.B 4.D 5.A 6.D 7.C 8.B 9.A 10.D 100% Correct
*November 5, 2015*

**COLLEGE ALGREBRA**

A horse breeder wants to construct a corral next to a horse barn that is L=20 feet long, using the barn as part of one side of the corral as shown in the figure above. The breeder has 320 feet of fencing available.
*November 5, 2015*

**ALGEBRA**

y=(x+5)^2
*November 5, 2015*

**English**

What is this poem about? John Burnside - 'History' It states it based in St Andrews; West Sands September 2001. Is this significant? Please help me to understand this poem Thankyou
*November 5, 2015*

**math**

Milo walks 40 meters in 15 seconds and Mira walks 30 meters in 10 seconds Whose walking is faster
*November 5, 2015*

**math**

Norman wanted to bowl a strike, but to do so he needed to cause his bowling ball (mass of 5 kg) to accelerate at 15 m/s2. How much force does Norman need to exert on his bowling ball to get a strike? Show your work.
*November 4, 2015*

**honors math**

Y=16-5x Y=1/2x-9 Y=3x Y=10 Need to write a parallel equation, perpendicular equation and neither parallel nor perpendicular line for all of them, please help
*November 4, 2015*

**Chemistry**

What do you mean you don't think much of the question? That you think it is easy? I didn't get it because does energy increase mean an exothermic or endothermic reaction because a reaction isn't spontaneous if the reaction is endothermic and the entropy decreases.
*November 4, 2015*

**Chemistry **

A change cannot occur spontaneously if it is accompanied by: A. An energy decrease and an increase in randomness. B. An energy increase and an increase in randomness. C. An energy decrease and a decrease in randomness. D. An energy increase and a decrease in randomness. E. A ...
*November 4, 2015*

**Physics**

kkkk
*November 4, 2015*

**Physics**

thnks for the help :D
*November 4, 2015*

**Physics**

A bomber flies horizontally with a speed of 175 m/s relative to the ground. The altitude of the bomber is 4780 m and the terrain is level. Neglect the effects of air resistance. gravity is 9.8 m/s a) How far from the point vertically under the point of release does a bomb hit ...
*November 4, 2015*

**math**

34.81 ?
*November 4, 2015*

**math**

Breck Hardware purchased from Black and Decker 10 Dust Busters for $24.95 each. What should Breck charge its customers for each Dust Buster if it has a 39.5% markup on cost?
*November 4, 2015*

**Social media**

Thanks for the help
*November 4, 2015*

**Social media**

I have been read different websites.
*November 4, 2015*

**Social media**

Thanks it been hard finding better websites.
*November 4, 2015*

**Social media**

Mrs.Sue could you tell if the first link on google would be a good one to used? Thanks for the help
*November 4, 2015*

**Social media**

kind of
*November 4, 2015*

**Social media**

is the first link on google good to used for positives
*November 4, 2015*

**Social media**

I am not have much lucky find a lot of negatives
*November 4, 2015*

**Science**

a horse runs with an initial velocity of 11m/s and slows to 5.2 m/s over a time interval of 3.1 s what is the horse's average acceleration
*November 4, 2015*

**English**

I don't understand
*November 4, 2015*

**English**

Can you please help me to understand what this poem is about? Maybe some useful weblinks will hhelp me as i cannot find anything. Thank you :) History John Burnside St Andrews: West Sands; September 2001 Today as we flew the kites — the sand spinning off in ribbons along ...
*November 4, 2015*

**english**

maybe some useful weblinks will help me, as I am unable to find anything.
*November 4, 2015*

**english**

Can you please help me understand what this poem is about? I just need an overall idea with a few explanation, so that I can adapt it in my writing. Thankyou. :) The Furthest Distance I’ve Travelled By Leontia Flynn Like many folk, when first I saddled a rucksack, feeling...
*November 4, 2015*

**math**

what is the cost of 3 bur oak trees. If regular three cost$35 and three or more Cost $32
*November 4, 2015*

**Math**

$12.72
*November 4, 2015*

**Math**

Jorge's current hourly wage for working at Denti Smiles is $12.00. Jorge was told that at the beginning of next month, his new hourly wage will be an increase of 6% of his current hourly wage. What will be Jorge's new hourly wage? F. $12.06 G. $12.60 H. $12.72 J. $18....
*November 4, 2015*

**Science**

Five contour lines that are 100ft would equal to 500ft
*November 4, 2015*

**Spanish**

I just took this. The answer's Spain
*November 4, 2015*

**PHYSICS**

A piece of aluminum (bulk modulus 7.1 x 1010 N/m2) is placed in a vacuum chamber where the air pressure is 0.307 x 105 Pa. The vacuum pump is then turned on and the pressure is further reduced to zero. Determine the fractional change V/V0 in the volume of the aluminum.
*November 4, 2015*

**PHYSICS**

A copper (shear modulus 4.2 x 1010 N/m2) cube, 0.248 m on a side, is subjected to two shearing forces, each of magnitude F = 3.84 x 10 6 N (see the drawing). Find the angle (in degrees), which is one measure of how the shape of the block has been altered by shear deformation.
*November 4, 2015*

**PHYSICS**

A tow truck is pulling a car out of a ditch by means of a steel cable (Y = 2.0 x 1011 N/m2) that is 9.73 m long and has a radius of 0.550 cm. When the car just begins to move, the tension in the cable is 859 N. How much has the cable stretched?
*November 4, 2015*

**Chemistry**

Determine ∆G° (in kcal) for the reaction CCl4(ℓ) + H2(g) HCl(g) + CHCl3(ℓ) at 25 °C under standard conditions. The following information is available: At 25 °C C(graphite) + 2Cl2(g) CCl4(ℓ) ∆S° = -56.23 cal K-1 C(graphite) + Cl2(g...
*November 4, 2015*

**PHYSICS**

A block weighs 15 N and is suspended from a spring that is attached to the ceiling. The spring stretches by 0.075 m from its unstrained length. By how much does the spring stretch when a 24-N block is suspended from it?
*November 4, 2015*

**math**

maddy has 32 shells. this is 4 times as any shells as Rob. Howmany shells does Rob have?
*November 4, 2015*

**HELP CALCULUS HOMEWORK DUE TODAY**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = (x) / (x^2 − x + 25), [0, 15]?
*November 4, 2015*

**g.b pant polytechnic**

about applide machenics
*November 4, 2015*

**g.b pant polytechnic**

about applide machenics
*November 4, 2015*

**Science**

please help me which of the following skulls is most likely that of an herbivore?
*November 4, 2015*

**MATH for Business**

Linear Programming-Investment Strategy Invest at most $90,000 in securities in the form of corporate stocks. Options into three groups of stocks: blue-chip stocks will yield 3% return (dividends and capital appreciation) within a year, growth stocks will yield 10% return ...
*November 4, 2015*

**Statistics**

1/30
*November 4, 2015*

**maths**

-160/8 = -20
*November 4, 2015*

**PHYSICS**

A thin rod has a length of 0.339 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.687 rad/s and a moment of inertia of 1.03 x 10-3 kg·m2. A bug standing on ...
*November 4, 2015*

**PHYSICS**

A thin rod has a length of 0.339 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.687 rad/s and a moment of inertia of 1.03 x 10-3 kg·m2. A bug standing on ...
*November 3, 2015*

**PHYSICS**

Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total energy used in the United States ...
*November 3, 2015*

**Shea middle school **

John oversleeps and misses the bus by 1 hour. He takes taxi to catch up to the bus. The taxi travels at an average speed of 100 km/h. At what time does the taxi catch up to the bus?
*November 3, 2015*

**PHYSICS**

A hiker, who weighs 976 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 4350 N, and rests on two concrete supports, one on each end. He stops 1/3 of the way along the bridge. What is the magnitude of the force that a ...
*November 3, 2015*

**math**

Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard. How much did Alice pay for the cloth if the sales tax was 5 percent?
*November 3, 2015*

**Math**

Thank you! :) Is it -5.792?
*November 3, 2015*

**Math**

What is -7 3/8 - (-1 7/12)?
*November 3, 2015*

**Physics**

A bomber flies horizontally with a speed of 175 m/s relative to the ground. The altitude of the bomber is 4780 m and the terrain is level. Neglect the effects of air resistance. gravity is 9.8 m/s a) How far from the point vertically under the point of release does a bomb hit ...
*November 3, 2015*

**algebra**

At a banquet the ratio if the number of boys to the number of girls is 5:3. Halfway tjrough the banquet 20 boys leave and the ratio bexomes 5:4. How many girls are at thebbanquet?
*November 3, 2015*

**Physics**

A ball is projected horizontally from the edge of a table that is 0.465 m high, and it strikes the floor at a point 1.04 m from the base of the table. gravity is 9.8 m/s the initial speed of the ball is 3.376042 m/s ~How high is the ball above the floor when its velocity ...
*November 3, 2015*

**Math**

What is 50 percent of 84
*November 3, 2015*

**math**

4X472 rounding
*November 3, 2015*

**Math**

Spent half of her money then 10 more, went to second store, spent half the money she had left and then 10 more. No money left over how much did she have
*November 3, 2015*

**Chemistry (Check)**

Never mind. I got it. Sorry
*November 3, 2015*

**Chemistry (Check)**

How many grams of NaOH are in 500mL of a 0.50 M solution? 500mL=.5L MM NaOH = 39.99711g M x V = n 0.5 x 0.5 = .25moleNaOH .25moleNaOH x (39.99711gNaOH / 1moleNaOH) = 10.gNaOH Is this right? If not, please tell me what I did wrong.
*November 3, 2015*

**Math**

You must subtract the sales tax and add the coupon value, then divide that number by three.
*November 3, 2015*

**Algebra**

I just noticed I wrote 4/2 instead of 4/3 oops
*November 3, 2015*

**Algebra**

The first one was 4/3 but the other two were right thanks so much :)
*November 3, 2015*

**Algebra**

Ok thanks Shalee :)
*November 3, 2015*

**Algebra**

1. Find the slope of a line that passes through (-2 -3) and (1 1). a. 1/3 b. 1 c. 2 d. 4/2 2. For the equation -4y=8x, what is the constant of variation? a. -4 b. -2 c. 1 d. 2 3. What is an equation in slope-intercept form for the line that passes through the points (1,-3) and...
*November 3, 2015*

**Chemistry (Help)**

0.275gAgNO3 is dissolved in 500mL of solution. a. What is the molarity of this solution. b. If 10.0 mL of this solution are transferred to a flask and diluted to 500mL, what is the concentration of the resulting solution? c. If 10.0mL of the solution in (b) are transferred to ...
*November 3, 2015*

**Chemistry (Check and Help)**

Which is more concentrated, 500mL of a .20M solution of NaCl or 250mL of a .25M solution of NaCl? MMNaCl = 58.44247 M x V = n .5L x .2M = .1moleNaCl .1moleNaCl x (58.44247gNaCl / 1moleNaCl) = 6gNaCl .25L x .25M = .0625moleNaCl .0625moleNaCl x (58.44247gNaCl / 1moleNaCl) = 3....
*November 3, 2015*

**Chemistry (Check)**

How many grams of NaOH are in 500 mLm of a 0.50M solution? 500mL --> .5L MM NaOH = 39.997g M x V = n .5 x .5 = .25moleNaOH .25moleNaOH x (39.99711gNaOH / 1moleNaOH) = 10.gNaOH Is this right? If not, what am I doing wrong?
*November 3, 2015*

**science**

If 0.188 moles of zinc reacts with excess lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following reaction?
*November 3, 2015*

**science**

If 0.188 moles of zinc reacts with excess lead(IV) sulfate, how many grams of zinc sulfate would be produced in the following reaction?
*November 3, 2015*

**Chemistry **

In a titration of 35 mL of 0.40 M H3PO4 with 0.30 M KOH solution, what volume (in mL) of KOH solution is needed to reach the last equivalence point (i.e., point in the titration where enough KOH has been added to neutralize all three of the acidic protons in the phosphoric acid)?
*November 3, 2015*

**1CHEM**

In a titration of 35 mL of 0.40 M H3PO4 with 0.30 M KOH solution, what volume (in mL) of KOH solution is needed to reach the last equivalence point (i.e., point in the titration where enough KOH has been added to neutralize all three of the acidic protons in the phosphoric acid)?
*November 3, 2015*

**Chemistry **

In a titration of 35 mL of 0.40 M H3PO4 with 0.30 M KOH solution, what volume (in mL) of KOH solution is needed to reach the last equivalence point (i.e., point in the titration where enough KOH has been added to neutralize all three of the acidic protons in the phosphoric acid)?
*November 3, 2015*

**intro to computers**

which option below represents a task that can be conducted in Excel through sorting? A. showing all cells that have a number that ends with a 5 B. showing all cells that have nothing in them. C. showing all cells that have the word "widget" in them. D. Displayig the ...
*November 3, 2015*

**algebra **

Part A: Darla rented a room for 3 days at $285.00 per day. If she rents the same room for 6 days, it would cost $510. Write an equation in the standard form to represent the total rent (y) that Darla has to pay for renting the room for x amount of days. (4 points) Part B: ...
*November 3, 2015*

**AP Chemistry **

At 25 degrees C, a sample of NH3( molar mass 17 g) effuses at the rate of .050 mole per minute. Under the same conditions, which of the following gases effuses at approxiomatesly half that rate? A- O2 B- He2 C-CO2 D-CI2 E-CH4
*November 3, 2015*

**St.therese'sSchool padrauna **

Ravish Saves 15 % Of his pocket money which is Rs 500 per month. How much is his pocket money? How can to solve this Question
*November 3, 2015*

**health**

What are the long-term benefits of smoking cessation? A. Decreased risk of stroke B. Decreased risk of lung and other cancers C. Decreased risk of coronary heart disease D. All of the above
*November 3, 2015*

**math**

1/3 (12p + 9q)
*November 3, 2015*

**Algebra**

The perimeter of the rectangle is 112 units. Find the length of side PQ (bottom). . Write your answer without variables. SR (top): 4z-2 SP (side):3z+2
*November 3, 2015*