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Rachel

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An equilibrium mixture of the following reaction was found to have [H2] = 0.020 M and [I2] = 0.020 M at 340°C. What is the
1. 2 answers
2. 899 views
Hydrogen and carbon dioxide react at a high temperature to give water and carbon monoxide.H2(g) + CO2(g) --> H2O(g) + CO(g) (a)
1. 6 answers
2. 2,516 views
An equilibrium mixture of SO2, O2, and SO3 at 1000 K contains the gases at the following concentrations: [SO2] = 3.77 10-3
1. 1 answer
2. 1,314 views
Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?1)Na
1. 1 answer
2. 589 views
Which of the following pairs of substances, when mixed in any proportion you wish, can be used to prepare a buffer solution?1)Na
1. 4 answers
2. 601 views
Two very long, straight, parallel wires carry currents that are directed perpendicular. Wire 1 carries a current I1 into the
1. 1 answer
2. 3,276 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
1. 1 answer
2. 525 views
An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling
1. 2 answers
2. 3,627 views
I have been given this question and with very little knowledge of physics and a book and flex studies that I am not finding very
1. 3 answers
2. 1,048 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
1. 0 answers
2. 547 views
An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling
1. 1 answer
2. 572 views
An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling
1. 0 answers
2. 533 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
1. 0 answers
2. 616 views
Find the Ph:of 7.01 x 10-5 M Ba(OH)2 thanks:)
1. 1 answer
2. 295 views
a microwave oven uses electromagnetic radiation with a wavelength of 3.00x10^6 nm. calculate energy (in joules) of 1.65 moles of
1. 2 answers
2. 711 views
An accelerating voltage of 2.46 * 10^3 V is applied to an electron gun, producing a beam of electrons originally traveling
1. 3 answers
2. 1,808 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
1. 7 answers
2. 2,928 views
what is the area of a circle with a circumference of 22 pi in.? expressed in pi in. squared? and what are the steps to arrive at
1. 2 answers
2. 1,420 views
10^-8
1. 2 answers
2. 279 views
The complete combusion of 0.5763 grams of glucose in a bomb calorimeter (Cbomb = 6.20 kJ/degrees C) raises the temperature of
1. 1 answer
2. 585 views
1. Graph the quadrilateral with vertices C(-9,4), D(-4,8), E(2,6), and F(-3,2). What specific shape is it?2. Include the work
1. 1 answer
2. 592 views
The combusion of glucose produces carbon dioxide and water vapor according to the chemical equation below:C6H12O6 (s) + 6O2 (g)
1. 0 answers
2. 691 views
What is the face value of a municipal bond that has a bond (or coupon) interest rate of 6% per year and makes interest payments
1. 0 answers
2. 533 views
A proton moves at 3.60 *10^5 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of
1. 0 answers
2. 506 views
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300,
1. 0 answers
2. 923 views
A copper wire has a circular cross section with a radius of 3.75 mm.If the wire carries a current of 4.00 A, find the drift
1. 0 answers
2. 752 views
An electron moving parallel to the x axis has an initial speed of 4.82 *10^6 m/s at the origin. Its speed is reduced to 1.46 *
1. 0 answers
2. 489 views
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The
1. 0 answers
2. 871 views
A proton moves at 3.60 *10^5 m/s in the horizontal direction. It enters a uniform vertical electric field with a magnitude of
1. 0 answers
2. 1,024 views
A uniform electric field of magnitude 320 V/m is directed in the negative y direction. The coordinates of point A are (-0.300,
1. 0 answers
2. 1,028 views
A copper wire has a circular cross section with a radius of 3.75 mm.If the wire carries a current of 4.00 A, find the drift
1. 1 answer
2. 749 views
An electron moving parallel to the x axis has an initial speed of 4.82 *10^6 m/s at the origin. Its speed is reduced to 1.46 *
1. 0 answers
2. 590 views
A proton is projected in the positive x direction into a region of uniform electric field E = (-6.80 * 10^5 N/C at t = 0. The
1. 0 answers
2. 735 views
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 8.0 g. Silver has 47
1. 1 answer
2. 1,180 views
a bag full of gum drops. 2/3 of which are blue. the red drops are 3/8 of the number of blue. There are 3 green drops.How many
1. 1 answer
2. 455 views
The water molecules now in your body were once part of a molecular cloud. Only about onemillionth of the mass of a molecular
1. 1 answer
2. 1,957 views
Can you please check my answers.1. A lyrical movement or piece for solo voice with instrumental accompaniment is called a/an A.
1. 4 answers
2. 932 views
Determine the concentration of a calcium chloride solution if 1.75 L of the solution contains 0.125 mol of calcium chloride.
1. 2 answers
2. 570 views
A student performs an experiment to determine the enthalpy of neutralization of hydrochloric acid and sodium hydroxide. The
1. 1 answer
2. 1,201 views
What mass of silver chloride can be prepared by the reaction of 160.0 mL of 0.10 M silver nitrate with 120.0 mL of 0.19 M
1. 0 answers
2. 644 views
What can you infer about Truman's successful tactic of attacking the "do-nothing congress"?
1. 3 answers
2. 634 views
a flask with a volume of 267.5 mL contains a few milliliters of a volatile hydrocarbon. after vaporizing the gas at 100 degrees
1. 0 answers
2. 486 views
a flask with a volume of 267.5 mL contains a few milliliters of a volatile hydrocarbon. after vaporizing the gas at 100 degrees
1. 0 answers
2. 498 views
A 150.0 mL flask contains 0.391 grams of a volatile oxide of sulfur. The pressure in the flask is 750 mmHg and the temperature
1. 1 answer
2. 1,418 views
Eric borrowed 515 dollars today and has agreed to pay back in equal monthly installments over 6 years. The bank charges Eric
1. 0 answers
2. 522 views
I have a question about the short story "Son" by John Updike. I have research this and read it but find it very confusing-I have
1. 12 answers
2. 1,533 views
Suppose a cylindrical habitat in space 7.70 km in diameter and 25.0 km long has been proposed. Such a habitat would have cities,
1. 1 answer
2. 1,808 views
Two hypothetical planets of masses m1 and m2 and radii r1 and r2, respectively, are nearly at rest when they are an infinite
1. 1 answer
2. 1,650 views
A 981-kg satellite orbits the Earth at a constant altitude of 103-km.How much energy must be added to the system to move the
1. 3 answers
2. 1,178 views
A system consists of three particles, each of mass 2.10 g, located at the corners of an equilateral triangle with sides of 22.0
1. 3 answers
2. 1,001 views
What is the minimum speed, relative to the Sun, necessary for a spacecraft to escape the solar system if it starts at the
1. 1 answer
2. 1,269 views
At the Earth's surface, a projectile is launched straight up at a speed of 8.4 km/s. To what height will it rise? Ignore air
1. 1 answer
2. 3,859 views
How much work is done by the Moon's gravitational field as a 1005 kg meteor comes in from outer space and impacts on the Moon's
1. 1 answer
2. 1,093 views
What mass of NaCl can be dissolved in 250 g of water at 20 degrees C?
1. 1 answer
2. 503 views
1. The interaction between a child's biological makeup and the environmental influences that affect his or her development and
1. 4 answers
2. 821 views
I have a question about the owrd cubiertos in Spanish. Does ths word includela servillete el cuchillo el vaso la cuchara el
1. 1 answer
2. 579 views
Question 11 (1 point) SaveAs the degree of relatedness within a population increases, the level of inbreeding in that population
1. 3 answers
2. 881 views
if a researcher were studying the effects of a teaching method on patient learning outcomes, how must he or she word the
1. 1 answer
2. 571 views
A parallel-plate capacitor is made from two plates 12.0cm on each side and 4.50mm apart. Half of the space between these plates
1. 2 answers
2. 2,151 views
Could someone help me with this question?Which of the following groups of workers lived in poverty? nurses unskilled workes
1. 1 answer
2. 500 views
In the poem "Home Burial", who do you think was in the right, the husband Amy?I believe Amy was in the right because, he
1. 2 answers
2. 452 views
I'm a bit confused about the average equations with integration. I need to solve this problem, and I think I'm supposed to use
1. 1 answer
2. 1,318 views
how many grams of NH3 are required to completely react with 40.0 grams of NO.
1. 1 answer
2. 461 views
andrew, bernard, and clyde are bicicling. each one is riding the bicicle of on friend and wearing the hat of another. the one
1. 4 answers
2. 652 views
A solid copper object hangs at the bottom of asteel wire of negligible mass. The top end of the wire is fixed. When the wire is
1. 1 answer
2. 3,192 views
On average 3 % of a certain type of TV tube burn out before their guarantee has expired. If a merchant sells 120 such tubes,
1. 1 answer
2. 555 views
What is the best comparison of incentive is to goad asa. pontential is to mortify b. quibble is to dishearten c. flaw is to
1. 1 answer
2. 560 views
Solve the differential equation.t(dy/dt) + 2y= t^3 t>0, y(1)=0 I think I solved it properly, I'm just trying to check my final
1. 1 answer
2. 510 views
A prince whose character is thus marked by every act which may define a tyrant is unfit to be the ruler of a [free] people who
1. 1 answer
2. 1,096 views
what is the difference of Centralization or decentralization dealing with education?
1. 3 answers
2. 674 views
Did the writers of the Constitution validate the ideals of the Declaration or betray them?
1. 2 answers
2. 388 views
Why has this portion been taken out of the declaration of independence"He has waged cruel war against human nature itself,
1. 0 answers
2. 612 views
Suppose you wish to invest X dollars in a bank account which pays 5% per year. You want to use this account to pay for costs
1. 0 answers
2. 653 views
how do you solve the exponential equation, 12^x = 14^3x?If someone could show me step by step I would greatly appreciate it.
1. 1 answer
2. 397 views
Picture the following:A square with 4 point charges. Charges Q are diagonal from eachother, and charges -Q are diagonal from
1. 0 answers
2. 942 views
Two point charges are placed on the x axis. The charge +4q is at x=3.00 m, and the -q chargeis at x=-3.00. a) There is a point
1. 1 answer
2. 891 views
If the ball is in equilibrium when the stringmakes a 25.9 ◦ angle with the vertical as indicated, what is the net charge on
1. 0 answers
2. 1,018 views
Jerry is considering buying today a new bond which makes infinite annual payments. In particular the bond pays its holder 557.3
1. 0 answers
2. 516 views
In order to have money for their daughter's college education, a young couple started a savings plan into which they made
1. 0 answers
2. 625 views
Nair Inc. bought a "growing perpetuity" bond. The bond will pay 631.85 dollars at the end of year 1 and the payment will
1. 0 answers
2. 447 views
Suppose you wish to create a scholarship fund which will pay 73.43 each year for the next 14 years. If you accomplish your task
1. 0 answers
2. 471 views
An object of mass m= 4.8g and charge Q = 49uC is attached to a string and placed in a uniform electric field that is inclined at
1. 0 answers
2. 723 views
A small m = 2.00 g plastic ball is suspended by a L = 24.0 cm long string in a uniform electric field, as shown in Figure
1. 1 answer
2. 847 views
A small m = 2.00 g plastic ball is suspended by a L = 24.0 cm long string in a uniform electric field, as shown in Figure
1. 1 answer
2. 1,635 views
Find the area enclosed by the following functions from x=0 to x=2:y=sqrt*(x+2) y=1/(1+x) I got 2/3(8)-ln3-2/3(sqrt*8) can
1. 3 answers
2. 524 views
i) The two lines 4x-6y=-5, and 7x+6y=7 intersect at the point where x= and y=?ii) If the line 7x+ky=7 is parallel to 4x-6y=-5,
1. 1 answer
2. 405 views
I'm graphing linear inequalities...it says I need to do:y<2x+4 y>5 How do I do this?
1. 1 answer
2. 535 views
An organ pipe open at both ends has a harmonic with a frequency of 480 Hz. The next higher harmonic in the pipe has a frequency
1. 0 answers
2. 727 views
Integrate the following:sin^3 x/cosx Have attempted numerous ways but can't get anything sensible to come out of it.
1. 2 answers
2. 421 views
How did events at Chickamauga and Chattanooga affect Georgians?
1. 2 answers
2. 512 views
Calculate the concentrations of S2O8 2-, I-, S2O32 2- in moles per litre of reaction mixture given the following:20mL of 0.1 M
1. 1 answer
2. 1,855 views
Posted by Rachel on Thursday, January 20, 2011 at 3:57pm.Does anyone know where I can get an image of the valence bond model for
1. 1 answer
2. 984 views
Find the integral of x/ (x^4+x^2+1) from 2 to 3.I was going to integrate using the method for partial fractions but I can't
1. 5 answers
2. 559 views
What is the integral of 1-tan^2theta from 0 to pi/3?Using the identity tan^2theta=sec^2theta-1, I got my answer to be 2pi/3 -
1. 1 answer
2. 592 views
Posted by Rachel on Thursday, January 20, 2011 at 3:57pm.Does anyone know where I can get an image of the valence bond model for
1. 2 answers
2. 532 views
Can someone please check my work?Calculate the mass of (NH4)2S2O8 needed to prepare 250mL of a 0.100M solution. I got 5.705 g.
1. 1 answer
2. 2,325 views
Does anyone know where I can get an image of the valence bond model for maleic acid?ie. showing the pi and sigma bonds and
1. 1 answer
2. 564 views
It was impossible for him to come. What part of speech is "impossible" in the previous sentence?
1. 1 answer
2. 1,220 views
In the sentence "He was made clean." what part of speech is clean?
1. 1 answer
2. 493 views
Where do I look for the domain in this-The domain of y =1/(x-6) + 3 Possible answers: All real numbers except x=6 All real
1. 2 answers
2. 383 views

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