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Chelsea

Questions (395)

NaHCO3 (s) + HC2H3O2 (aq) ---> ?
1. 1 answer
2. 3,537 views
Write the balanced neutralization reaction between H2SO4 and KOH in aq. solution..350 L of .410 M H2SO4 is mixed with .300 L of
1. 6 answers
2. 2,875 views
Write the balanced equation for (aq) Pb(ClO3)2 and (aq) NaI. Include phases.What mass of precipitate will form if 1.50 L of
1. 6 answers
2. 2,617 views
Zinc reacts with hydrochloric acid according to the reaction equation...Zn (s) + 2HCl (aq) ---> ZnCl2 (aq) + H2 (g) How many
1. 4 answers
2. 865 views
The flask here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains .270 M NaOH.What volume
1. 3 answers
2. 1,159 views
For the following,2HBr (aq) + Ba(OH)2 (aq) ---> 2H2O (l) + BaBr2 (aq) write the net ionic equation including the phases
1. 4 answers
2. 20,531 views
For the following chemical reaction...HCN (aq) + KOH (aq)----> H2O (l) + KCN (aq) write the net ionic equation, including the
1. 7 answers
2. 24,712 views
A truck of mass 8,000 kg is traveling along a level road at an initial speed of 25 m/s. The driver then shifts into neutral so
1. 1 answer
2. 752 views
What type of questions should a patient ask a doctor before getting cosmetic surgery?
1. 1 answer
2. 398 views
An oscillating block-spring system has a mechanical energy of 5.1 J, an amplitude of 0.81 m, and a maximum speed 1.6 m/s. Find
1. 1 answer
2. 568 views
A 0.98 N bird descends onto a branch that bends and goes into SHM with a period of 0.46 s. Determine the effective elastic force
1. 0 answers
2. 454 views
A tower stands on a 20 degree slope. From a point 45 m directly up the slope. The angle of elevation of the top of the tower is
1. 1 answer
2. 715 views
If 22.4 dm3 of steam react with MgO, calculate the mass of the product that will form.
1. 0 answers
2. 519 views
How many cubic decimeters of oxygen are needed to react with sulfur to produce 5.00 * 103 cubic decimeters of sulfur dioxide?
1. 1 answer
2. 450 views
The orbit of a Moon about its planet is approximately circular, with a mean radius of2.24 × 10 8 m. It takes 35.5 days for the
1. 1 answer
2. 749 views
The period of the earth around the sun is1 year and its distance is 150 million km from the sun. An asteroid in a circular orbit
1. 1 answer
2. 1,296 views
An athlete whirls a 7.17 kg hammer tied tothe end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.76
1. 0 answers
2. 426 views
A coordinate system (in meters) is constructed on the surface of a pool table, andthree objects are placed on the coordinate
1. 0 answers
2. 558 views
A train moving with constant velocity travels 190 north in 14s and an undetermined distance to the west. The speed of the train
1. 0 answers
2. 759 views
A small spherical insulator of mass 8.96 10-2 kg and charge +0.600 μC is hung by a thread of negligible mass. A charge of
1. 0 answers
2. 966 views
Finish what I've started of this nursery rhyme?"Little jack Horner was a little explorer, who travelled to Mexico..."
1. 2 answers
2. 386 views
Help me fix this so it flows better, and has more imagery?Written from POV of a guy, just saying. "I didn't speak my question
1. 1 answer
2. 363 views
I'm writing a story about a boy who wakes up after dying, and he is trapped in the passageway between heaven & hell. When he
1. 1 answer
2. 442 views
We created a new iPod for a scarcity project, and we can't come up with a slogan to save our lives. Help? Some of the features
1. 0 answers
2. 715 views
10. A single weed in plot 6 has a genetic mutation that allows its cells to transport herbicide out through the cell membrane
1. 0 answers
2. 489 views
9. Prior to herbicide application, a student notes that there are two related species of weeds (A and B) that occur in similar
1. 0 answers
2. 751 views
8. All cataracts were originally thought to be acquired; however, recent research indicates that some cataracts are genetic in
1. 1 answer
2. 1,573 views
7. The mutation for cataracts (c) occurs on a gene represented by the letter E. Owls that are homozygous for the mutation (EcEc)
1. 1 answer
2. 972 views
6. Owls are nocturnal hunters and depend on their acute vision for survival. If an owl with cataracts is determined to be
1. 0 answers
2. 505 views
Some strains of laboratory mice have been inbred for many generations, resulting in large numbers of mice with nearly identical
1. 0 answers
2. 478 views
4. Bacillus thuringiensis (Bt) is a bacterium that contains a gene that results in the production of a natural pesticide that
1. 0 answers
2. 1,270 views
2. A gamete cell is produced through which process?A.osmosis B.mitosis C.meiosis D.respiration
1. 1 answer
2. 495 views
$5000 for 4yrs at 3.2% compounding monthlyFind the amount of interest earned?
1. 1 answer
2. 348 views
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.85
1. 1 answer
2. 2,059 views
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is 1.85
1. 0 answers
2. 697 views
Water moves through a constricted pipe in steady, ideal flow. At the lower point shown in the figure below, the pressure is
1. 1 answer
2. 1,176 views
An object with a mass of 20.1 kg is hung from two identical springs vertical. The springs both stretch 0.23 meters from
1. 0 answers
2. 660 views
Mass 1 with a mass of 28.5 kg starts at rest at the top of a frictionless from a height of 17 meters. It then slides down the
1. 0 answers
2. 601 views
Let's say you are standing on top of a mountain looking down at the valley below, where you can see cars driving on a road. You
1. 0 answers
2. 842 views
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For
1. 0 answers
2. 449 views
An object with a mass of 12 kg slides 9 meters across a horizontal surface with a coefficient of kinetic friction of 0.22. For
1. 0 answers
2. 433 views
An object with a mass of 3.4 kg is originally at rest on a horizontal, frictionless surface frictionless which is at the top of
1. 1 answer
2. 1,191 views
A mass of 2.9 kg is hanging vertically from a string with a length of 2.4 meters. It is then raised to an angle of 50 degrees
1. 1 answer
2. 495 views
An object of mass 26 kg is thrown straight upwards from the ground at 27 m/s. Due to air resistance (a non-conservative force),
1. 1 answer
2. 947 views
Suppose that when pizza dough is rolled out it costs 25 cents per square foot, and that sauce and cheese when spread out on a
1. 2 answers
2. 2,096 views
Suppose that the spool is 1m long and has an inner diameter of 20 cm and an outer diameter of 60 cm. Approximately, how long a
1. 0 answers
2. 1,269 views
A classroom has a floor area of 600 square feet. What is the floor area of the classroom in square meters? describe three
1. 0 answers
2. 1,401 views
How much mulch will you need to cover a rectangular garden that is 20 feet by 30 feet with a 3 inch layer of mulch? Explain.
1. 3 answers
2. 1,370 views
What is the molarity of 827 mL of a solution that contains 0.057 mol of solute?
1. 2 answers
2. 393 views
Do either of these sound like a thesis statement to you guys? For the book Murder on the Orient Express.1) There are situations,
1. 2 answers
2. 459 views
So, I need a thesis statement for a research paper for Murder on the Orient Express. (Sorry to keep posting a new question each
1. 3 answers
2. 1,868 views
So, thanks for the help to those who answered my last question. My book is Murder on The Orient Express by Agatha Christie, and
1. 2 answers
2. 1,180 views
I need help wording my thesis. My idea is..if a man was to catch someone beating his daughter, is it legal to kill him? But I
1. 3 answers
2. 919 views
Find the surface area of a right rectangular prism measuring 2 ft by 3 ft by 4 ft
1. 1 answer
2. 1,182 views
John Ruskin illustrates a direct correlation between the decline in morality and the pollution visible in his world in “The
1. 1 answer
2. 357 views
how would you determine the number of diagonals in a regular 41-gon ?
1. 5 answers
2. 426 views
What is the Value of -2(x-4)+1 when x=9?i got -9 is that right?
1. 3 answers
2. 283 views
What Is 48cm in inches?
1. 2 answers
2. 384 views
If the mean score on a set of 24 tests is 81and two more students took the test and score a 70 and a 59 what would be the new
1. 4 answers
2. 492 views
what is the probability of observing three or fewer 6s when rolling a fair die twenty times?
1. 0 answers
2. 1,045 views
Write the partial fraction decomposition of the rational expression.(80-14x)/(x^3 -8x^2 +16x)
1. 3 answers
2. 606 views
I need help setting up this equation.The Volume, V, of a given mass varies directly as the temperature, T,and inversely as the
1. 1 answer
2. 433 views
Perform the indicated operations and write in standard form.Sq root of -25(3- sq root of -81) Sorry, I don't know how to do the
1. 0 answers
2. 603 views
Solve the inequality by first rewriting it as an equivalent inequality without absolute value bars. Express solution set using
1. 1 answer
2. 1,024 views
Find the inverse of the one-to-one function.f(x)= 5/(3x-4)
1. 1 answer
2. 426 views
List all possible rational roots, use synthetic division to find an actual root, then use this root to solve the equation.x^3
1. 1 answer
2. 521 views
Use the given root to find the solution set of the polynomial equation.x^3 + 8x^2 -18x +20= 0 ; 1+i
1. 1 answer
2. 1,162 views
Factor the polynomial as the product of factors that are irreducible over the real numbers. Then write the polynomial in
1. 1 answer
2. 1,402 views
A farmer has 80 feet of fencing, which she plans to use to fence in a plot of land for a pigpen. If she chooses to enclose a
1. 1 answer
2. 4,049 views
Help me solve this please ::::Divide: �ã10a/16y
1. 3 answers
2. 424 views
c=6350/(425-3x) What is the cost and equation to remove 99% of the pollution in the pond?
1. 1 answer
2. 334 views
How many animals should be tested for the average cost to be $3.50 per animal? 220,00 set up cost.(Remember we cannot have
1. 1 answer
2. 385 views
c=6350/(425-3x) What is the cost and equation to remove 99% of the pollution in the pond?
1. 0 answers
2. 939 views
The cost, in millions, to remove x% of pollution in a pond is modeled by the equation:. What is the cost to remove 75% of the
1. 1 answer
2. 431 views
Speed of passenger train is 6mph faster than the freight train. The passenger train travels 260 miles at the same time the
1. 1 answer
2. 1,004 views
Can anyone solve this PPPPPlease 5/x-3 + 2/x+3= -7x/x^2-9
1. 2 answers
2. 354 views
The cost, in millions, to remove x% of pollution in a pond is modeled by the equation:. What is the cost to remove 75% of the
1. 1 answer
2. 506 views
What would be the gcf for these polynomials equations? (1) 2x3 - 8x2 - 9x + 36 (2) 6x4 -10x³ + 3x².PLEASE HELP!!!
1. 3 answers
2. 634 views
We had to do weighted averages in evolution and I'm confused. Please help!We were given allele frequencies which we had to
1. 1 answer
2. 473 views
Im supposed to do this outine on the Glorious Revolution and for the 2 part it says list and explan 3 The public policy changes
1. 0 answers
2. 1,030 views
A student produced a volatile liquid experiment with the following results:Mass of flask, boiling water, foil cap, and unkown
1. 0 answers
2. 575 views
Calcium reacts with water according to the chemical equation below:Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected
1. 1 answer
2. 724 views
Calcium reacts with water according to the chemical equation below:Ca + 2H2O--> Ca(OH)2 + H2 All but which reaction is expected
1. 0 answers
2. 672 views
A pelican ﬂying along a horizontal path drops a ﬁsh from a height of 5.5 m. The ﬁsh travels 7.0 m horizontally before it
1. 1 answer
2. 724 views
A student synthesized 6.895 g of barium iodate monohydrate by adding 30.00 mL of 5.912 x 10-1 M sodium iodate, NAIO3. 125 mL of
1. 1 answer
2. 1,079 views
In small rural communities, nearly everyone knows everyone else and there is considerable social interaction. A duel
1. 2 answers
2. 964 views
What are some of the disadvantages that Europes geography had?
1. 1 answer
2. 497 views
How do you divide 4 by 5??4/5=0.8 but how do i get the answer to show my work
1. 5 answers
2. 393 views
Maximize z=4x+2y subject to:x-y<10 5x+3y<75 x+y<20 X>0 y>0
1. 1 answer
2. 502 views
John is to receive $1000 at the end of each year for 5 years. If he invests each year’s payment at 8% annually, how much will
1. 1 answer
2. 424 views
Find the future value of $600 invested for 5 years at 8% interest compounded semiannually.
1. 2 answers
2. 542 views
A shipping company owns a fleet of heavy trucks. If the purchase price of each truck is $245,000 and its value depreciates by 15
1. 1 answer
2. 1,300 views
Block B weighs 716 N. The coefficient of static friction between block and table is 0.31. Assume that the cord between B and the
1. 1 answer
2. 972 views
I'm trying to prep for an exam, but I am struggling with the practice questions. I have answers for both questions, but I'm 95%
1. 1 answer
2. 515 views
When a high-speed passenger train traveling at 124 km/h rounds a bend, the engineer is shocked to see that a locomotive has
1. 4 answers
2. 1,011 views
HELLP!! Can someone help me solve for y in this equation.?-4/5 = (y-2) / (4- (-1))
1. 3 answers
2. 444 views
The points (-1,2) & (4,y) have a slope of -4/5. What is the y coordinate for (4,y).?
1. 1 answer
2. 366 views
The points (-1,2) & (4,y) have a slope of -4/5. What is the y coordinate for (4,y).?
1. 1 answer
2. 421 views
What is the horizontal change between the points (-2, 5) and (4, 10)?
1. 1 answer
2. 986 views
The points (0, -5) and (x, y) have a slope of 0. What could be the coordinates of the point (x, y)?
1. 1 answer
2. 341 views

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