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Please explain me which solution reacts faster to breakdown the materials the 25% or 10% HCL?
1. 2 answers
2. 746 views
1. Molarity is to moles of solute over liters of solution as molalityis to A. molar concentration over molal concentration. B.
1. 0 answers
2. 668 views
Consider the following unbalanced reaction:Fe2O3 (s) + CO (g) --> Fe (s) + CO2 (g) How many moles of carbon dioxide are produced
1. 1 answer
2. 836 views
A particle travels to the right at a constant rate of 6.8 m/s. It suddenly is given a vertical acceleration of 1.8 m/s2 for 5 s.
1. 0 answers
2. 1,055 views
A compact disc spins at 2.3 revolutions per second. An ant is walking on the CD and finds that it just begins to slide off the
1. 0 answers
2. 512 views
Convert 25 meters to centimeters and gigameters.
1. 0 answers
2. 430 views
Convert 25 meters to centimeters and gigameters.
1. 0 answers
2. 408 views
Convert 25 meters to centimeters and gigameters.
1. 0 answers
2. 442 views
how do you calculate density of a substance with a mass of 100g and a volume of 48ml
1. 2 answers
2. 526 views
place decimal points in 190563 and 865 so that their difference is 181.913
1. 1 answer
2. 324 views
Find the distance between P1(3, –195°) and P2(–4, –94°) on the polar plane. Round your answer to the nearest thousandth.
1. 2 answers
2. 1,028 views
A surveyor records the polar coordinates of the location of a landmark as (40, 62°). What are the rectangular coordinates?
1. 2 answers
2. 1,613 views
A company produces cardboard boxes with the top, bottom and sides measuring 5 feet. It costs the company 4 cents a square foot
1. 1 answer
2. 647 views
A roller coaster moves 85m at 35 degrees S of W, and then travels 30 m at 45 degrees W of N. What is its displacement from its
1. 1 answer
2. 370 views
Find[4(cos115+isin115)]^6
1. 3 answers
2. 489 views
4x+2y-3z=7 2x+4y+z=35 6x+2y-2z=20 solve the system
1. 1 answer
2. 876 views
Could somebody tell me in simple terms why equating coefficients works in partial fraction decomposition?Like a simplified proof
1. 1 answer
2. 431 views
which job titles are consistent only with the java language?
1. 0 answers
2. 420 views
What is the importance of the Michelson-Morley experiment?
1. 0 answers
2. 394 views
The drawing bellow(click go to address img291.imageshack.us/i/sc017942e5.jpg/ to see picture of image) shows two students
1. 2 answers
2. 569 views
an object that is 6 cm in height is put 9 cm from a convex lens. The lens has a focal length of 8 cm. What is the size of the
1. 0 answers
2. 462 views
For how many two-digit prime numbers is the sum of its digits 8?
1. 7 answers
2. 3,442 views
Two charges are located along the x-axis. Onehas a charge of 6.2 µC, and the second has a charge of −3.1 µC. The Coulomb
1. 0 answers
2. 1,046 views
How would you set up the following unifor motion problem...How long will it take the plane to fly 1000 km (i mile=1.61 km) if it
1. 1 answer
2. 388 views
How would you set up the following unifor motion problem...How long will it take the plane to fly 1000 km (i mile=1.61 km) if it
1. 0 answers
2. 336 views
what is the positive difference in the sums of the letters in the words MATH and COUNTS, if each letter is assigned a value as
1. 2 answers
2. 452 views
A 5 digit positive integer is a "mountain number" if the first 3 digits are in ascending order and the last 3 digits are in
1. 0 answers
2. 574 views
Quicklime (CaO) can be prepared by roastinglimestone (CaCO3) according to the reaction CaCO3(s) � −!CaO(s) + CO2(g) . When 2.6
1. 2 answers
2. 1,745 views
When 2.6 ×103 g of CaCO3 are heated, theactual yield of CaO is 1.06 ×103 g. What is the percent yield? Answer in units of %.
1. 1 answer
2. 861 views
Was there any magnetic pulling during the Mesozoic Era?
1. 1 answer
2. 361 views
How many different points of intersection are there for x + y = 7 and y = x squared minus 7?
1. 1 answer
2. 1,171 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. 597 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. 524 views
To buy both a new car and a new house, Tina sought two loans totalling $260,394. The simple interest rate on the first loan was
1. 1 answer
2. 693 views
1.Weren't you ______ to help me wash the dishes? (suppose)I have use correct form of suppose. Would it be suppose?
1. 2 answers
2. 726 views
Using the correct form of (eat, ate, sit, set)1.Someone (eat) all the leftover sandwiches. 2.Thank you, but I have already (ate,
1. 3 answers
2. 512 views
1.We (see) tropical fish in the warm waters surrounding the island.2.Have you (speak) to your parents about the field trip?
1. 1 answer
2. 400 views
1.I have often (dream) of becoming a great writer.2.I (drink) two glasses of orange juice at breakfast today. 3.Their new boat
1. 5 answers
2. 552 views
x^2 + y^2 - 8x -2y -3 = 0the points S and T lie on the circumference of the circle. M is the midpoint of the chord ST. Length of
1. 0 answers
2. 593 views
A value of the number m for which there is either no solution or an infinite number of solutions (u,w) to the system of
1. 1 answer
2. 431 views
Given the initial augmented matrix-1 1 2 0 2 -1 -3 0 2 -2 -4 0 find the RREF
1. 0 answers
2. 531 views
1 kg aluminum dumbbell initially held 2 meters above the floor is allowed to fall. This experiment is performed inside a room
1. 1 answer
2. 758 views
How do I balance this equation and what is the answer?C3H9N+O2-->CO2+H2O+NO2
1. 1 answer
2. 926 views
A golf ball is chipped at an angle of 49 degrees and with a speed of 8.5 m/s. How far does it travel to the nearest tenth of a
1. 1 answer
2. 449 views
What do I do when writing the net ionic equation for Magnesium nitrate reacted with sodium chloride?I've wrote out the molecular
1. 1 answer
2. 691 views
Need to identify five adverbs in this paragraph. I think I am correct but would like a second opinion. Thanks for your thoughts.
1. 2 answers
2. 871 views
Determine the amount of energy required (in MeV) to dissociate the followingelements into component parts (protons, neutrons and
1. 1 answer
2. 459 views
On the unit circle the coordinates of P(theta) are (0.588, 0.809). Find the coordinates of P(2theta). Please help.
1. 1 answer
2. 512 views
A sweepstakes posted the odds and payoffs. Suppose that mailing the sweepstakes costs $0.33 and the odds in favor of winning the
1. 1 answer
2. 525 views
Can the expression (r-3)(s+2) be simplified without knowing the values of r and s?
1. 0 answers
2. 337 views
If the probability of an event happening is 1/7, what are the odds against it happening? What is the ratio of the odds against
1. 2 answers
2. 1,123 views
Two questions?Build a patio-hypotenuese is 50 feet long the two sides of patio are same. What is the length of one side of the
1. 3 answers
2. 556 views
Given 20.0 L of ammonia gas at 5C and 730 torr, calculate the volume at 50C and 800 torr
1. 3 answers
2. 1,622 views
if possible, change each comparison of concentrate to water into a ratio. If not, explain why. a. the mix is 60% concentrate. b.
1. 1 answer
2. 803 views
if you have a apple juice mix of 5 cups concentrate to 8 cups water, if you only make 1 cup of mix, how much water and how much
1. 1 answer
2. 1,210 views
(A.)A hawk flies in a horizontal arc of radius 13.4 m at a constant speed of 4.5 m/s. Find its centripetal acceleration. Answer
1. 7 answers
2. 1,908 views
(A.)A hawk flies in a horizontal arc of radius 13.4 m at a constant speed of 4.5 m/s. Find its centripetal acceleration. Answer
1. 0 answers
2. 831 views
Describe how Earth would be different todayif it contained no radioactive material. What would the consequences be for the
1. 2 answers
2. 759 views
When empty, a particular helicopter of mass 3770 kg can accelerate straight upward at a maximum acceleration of 1.29 m/s2. A
1. 2 answers
2. 537 views
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections:(a) Perpendicular to
1. 2 answers
2. 1,068 views
A 1.0 m cubed object floats in fresh water with 20% of it above the waterline. What does the object weigh out of the water?
1. 2 answers
2. 1,237 views
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections:(a) Perpendicular to
1. 1 answer
2. 1,188 views
Students are often confused about the use of the words good and well in their writing. Write a 100-word passage to Susan Anker,
1. 3 answers
2. 754 views
I'm after understanding more than an answer but an answer would be greatly appreciated.The question reads as "On the answer
1. 1 answer
2. 825 views
I'm after understanding more than an answer but an answer would be greatly appreciated.The question reads as "On the answer
1. 0 answers
2. 1,119 views
Action potentials: Tick the box next to the ONE answer you believe is TRUE.A. compound action potentials increase in amplitude
1. 0 answers
2. 507 views
the curve y=x^2 - 3x - 4 cross the x-axis at P and Q. the tangent to the curve at P and Q meet at R. the normals to the curve at
1. 2 answers
2. 561 views
the curve y=x^2 - 3x - 4 cross the x-axis at P and Q. the tangent to the curve at P and Q meet at R. the normals to the curve at
1. 0 answers
2. 456 views
Please correct my english!Hello everybody! I'm not an english speaker, but currently study english at school. Our homework is to
1. 2 answers
2. 1,107 views
One way that safety enters into specifications is to specify the composition of a vapor in air that could burn if ignited. If
1. 0 answers
2. 558 views
I'm trying to figure out how this sentence should be correctly punctuated.He soon found out that it was just what it was called,
1. 1 answer
2. 529 views
In the substitution reaction of 2-pentanol with sulfuric acid and sodium bromide, how many grams of sodium bromide and mL of
1. 0 answers
2. 584 views
the activation energy for the decomposition of HI(g) to H2(g) and I2(g) is 186kj/mol. the rate constant at 555k is 3.42 x 10^-7
1. 1 answer
2. 804 views
Find all the roots of the equation Sin(2x)=1/2 in the range of -pi<x<pi giving answers in radians as multiples of Pi
1. 1 answer
2. 479 views
Help!!How many atoms in 3.45 mL of water? (H2O only;mL=g) and If you are out panning for gold and discover a nugget that is
1. 0 answers
2. 525 views
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its x-coordinate
1. 0 answers
2. 648 views
A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its x-coordinate
1. 0 answers
2. 662 views
how do you show that line 3x+y-2=0 is a tangent of the curve y=(4x-3)(x-2) and how to find the point of contact??
1. 1 answer
2. 551 views
Determine the number of terms in the expression 14m - 16.
1. 0 answers
2. 934 views
She will become a physicist one day.Have to identify the verb or verb phrase and then tell if it contains a linking verb or does
1. 4 answers
2. 401 views
Find the 1st derivative of the function:y = 1/4 sin^2 (2x) So confused...
1. 1 answer
2. 1,085 views
what is the prime factorization of 72
1. 1 answer
2. 315 views
A(-1,-2) B(7,2)show that the lenght AB may be written in the form p root5 wjere p is an integer to be found?? is then ans just
1. 0 answers
2. 385 views
make up a data set of at least 12 numbers that have the following landmarks.maximum 18 mode 7 range 13 median 12
1. 1 answer
2. 469 views
How are the structures in genetics related?
1. 0 answers
2. 929 views
How do you represent data in a graph?
1. 0 answers
2. 428 views
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a
1. 0 answers
2. 1,250 views
H2O (l) requires the largest amount of energy to raise the temperature of 25.0g H2O of the substance from 15.0 *C to 37.0 *C.
1. 1 answer
2. 4,280 views
A sample of an ideal gas at 15.0 atm and 10.0 L is allowed to expand against a constant external pressure of 2.00 atm at a
1. 0 answers
2. 1,003 views
For every liter of sea water that evaporates, 3.70g of magnesium hydroxide are produced. How many liters of sea water must
1. 1 answer
2. 495 views
Marcus want to make a stone walkway in his garden.the rectangular walkway will be 3 feet wide and 18 feet long.Each 2-foot by
1. 5 answers
2. 1,548 views
Verify that the Intermediate Value theorem applies to the indicated interval and find the value of c guaranteed by the theorem.f
1. 0 answers
2. 1,053 views
What is the chemical name for Polyurethane and what does it look like at it's resting state?
1. 0 answers
2. 425 views
If 50 is the first number, what is the second number?
1. 2 answers
2. 709 views
Next, Tom remembers that he heard a doctor talking about something that takes two weeks to heal.I have to identify what type of
1. 1 answer
2. 263 views
ammonia gas reacts with copper (ii) oxide at high temperatures to produce elemental nitrogen, copper metal, and water vapor.
1. 2 answers
2. 1,212 views
Find the limiting reagent.2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!
1. 1 answer
2. 587 views
Find the limiting reagent.2 NH4 (g) + 4 CuO (s) ==> N2(g) + 4 Cu(s) + 4H2O (g) Please explain, thank you!
1. 0 answers
2. 438 views
Fond the limit oflim x -> 3 [1/(x+4)] - (1/4) _________________ x
1. 1 answer
2. 438 views
DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction:2 C 6 H 5 Cl (Chlorobenzene) + C 2
1. 1 answer
2. 1,697 views

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