
if you filled a 150ml container w/100ml of substance and the substance quietly filled the container what would it be

The school has raised $1,200 over the last 2 years. This year the school raised $200 more then last year. How much money did the school raise last year?

Sulfuric Acid (H2SO4) is a strong acid, which dissociates when dissolved in water according to the following equation: H20SO4(aq)> 2H+(aq) + SO4 2 (a) A 0.21g sample of sulfuric acid is dissolved completely in sufficiebt water to make 0.25litre of the final solution. ...

Please check and let me know which ones are wrong Thank you Tom 31.I had hoped the police would blame Bruce, not ___. _x_ me __ myself __ mineself __I 32.Some interviewers ____ have a clear sense of what they want in an employee, ask very tough questions. __ who _x_, who __ ...

A generating station is producing 2.00 106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.00 102 /km. (a) Find the power lost in heating the wires if ...


Mg(OH)2(aq) <> Mg2+ (aq) + 2OH(aq) a) what would happen to the equilibrium if some acid is added to the soultuion? b) what would happen to the solubility of Mg(OH)2? c) what would happen to the Ksp?

A solute is added to water and a portion of the solute remains undissolved. When equilibrium between the dissolved and undissolved solute is reached, the solution must be

The Fibonacci sequence of numbers begins 1,1,2,3,5,8,13,21,34,55,…and continues by the rule: every number is the sum of the two previous numbers. a. Determine the next five (eleventh through fifteenth) elements of this sequence. b. Compute the ratio of the fourteenth and ...

Mutiple choice: A car travelling at 10 m/s accelerates at 3 m/s^2. Its new velocity is A.) 12 m/s B.) 22m/s C.) 17 m/s D.) Can not be determined. Which of the following is not acceleration? A.) rate of change of speed in a particular direction B.) rate of change of motion in a...

A 0.75 L bottle is cleaned, dried, and closed in a room where the air is 24°C and 35% relative humidity (that is, the water vapor in the air is 0.35 of the equilibrium vapor pressure at 24°C). The bottle is brought outside and stored at 0.0°C. (See Table 5.2)

The price of a wideget increases by 90%. What effect would we expect this to have on the equilibrium wage rate of workers who make widgets? Would this increase, decrease, or keep the wage rate the same?

What is the final equilibrium temperature when 7 g of milk at 5C is added to 117 g of coffee at 68C? Assume the specific heats of milk and coffee are the same as that of water, and neglect the specific heat of the container. Answer in units of C

a) Write Bronsted acidbase equilibrium equations for the following: b) Show the acidbase conjugated species, labeling all species (1) HSO4 + C2O42 (2) HPO42 + NH4+

At a particular temperature, 12.0 mol of NH3 is introduced into a 2.0 container, and the NH3 partially dissociates by the reaction: 2NH3 <> N2 + 3H2 At equilibrium, 6.0 mol of H2 gas are present. Calculate the K for this reaction.

Some N2 and H2 are placed in an empty 5.00 liter container at 500 degree celcius. When equilibrium is established, 3.0mol N2, 2.40mol H2 and 0.565mol of NH3 are present. Evaluate Kc for the reaction at 500 degree celcius.


Some N2 and H2 are placed in an empty 5.00 liter container at 500 degree celcius. When equilibrium is established, 3.0mol N2, 2.40mol H2 and 0.565mol of NH3 are present. Evaluate Kc for the reaction at 500 degree celcius.

A 0.0500 kg ice cube at 30.0◦C is placed in 0.400 kg of 35.0◦C water in a very well insulated container. What is the final temperature? (Note: how can you check if all the ice melts at equilibrium temperature?)

A 0.0500 kg ice cube at 30.0◦C is placed in 0.400 kg of 35.0◦C water in a very well insulated container. What is the final temperature? (Note: how can you check if all the ice melts at equilibrium temperature?)

The supply function for a product is 2pq10=0, while the the demand function for the same product is (p+10)(q+30) = 7200. Find the market equilibrium point. .. I think q=656.6667 and p= 333.33335 I think D must = S... but I don't know how do do that. Help?

Ammonium hydrogrn sulfide decomposes according to the reaction. NH4HS(s) <> NH3(g) + H2S(g) If 55.0g of solid NH4HS is placed in a sealed 5.0L container, what is the partial pressure of NH3 and H2S at equilibrium ? Kc = 0.11 at 250°C

Whats the quickest way to tell how many solutions you will have. in a problem? a. solve for f(X) b. set the equation equal to zero c. the highest deree will be equal to the number of solutions. My answer choice would be C. Am I correct?

1. Write the ratio in the simplest form. 45 : 15 a. 9 : 3 b. 3 : 1 c. 1 : 3 d. 4 : 1 4. Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets Jake sold? 5. In 10 ...

1.Tiny Tim was destitute. His clothing was in tatters. Which sentence combines the two sentences using a past participle? Tiny Tim's tattered clothing showed he was destitute. THIS ONE Tiny Tim was destitute, and his clothing was in tatters. Tiny Tim's clothing was in tatters ...

If a saline solution has a concentration of 0.25 g per mL, calculate the following. a) The concentration of this solution in %w/v. b) The concentration of this solution in grams per litre (g/L). c) The concentration of this solution in milligrams per mL (mg/mL).

particle of mass m kilograms is acted on by two forces F[1] and F[2] with magnitudes 3*sqrroot 5 newtons and sqrroot 5 newtons and directions parallel to the vectors i+2j and i2j respectively. The particle is initially at a position given by the vector 2i+j i was told to ...


An ideal gas at 18.5°C and a pressure of 1.54 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 5.30 m3 and the temperature raised to 31.0°C, what will be the pressure of the gas? Pa I used the formula pv = nRT (...

I am a number between 20 and 30.When you put me into 6 equal groups,there is an even number in each group and 1 left over. i cant figure out how to solve this

If you need to find the percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the number. HELP PLEASE

degenerate sanctuary implausible scrutiny incoherent sinister intercede suffice intricate vulnerable 1) kens cartoon ______ for the school newspaper, but they wouldnt be good enough for the city paper. 2)in the batman movies the jokers name is misleading, for hes a(n) _____ ...

Any number divided by itself is equal to? a. the original number b. the square of the original number c. one d. zero I belive the answer is one c.

What can you say about the motion of a body if: a. its displacementtime graph is a straight line inclined with the time axis b. its velocitytime graph is a straight line inclined with the same axis. c. its velocity time graph is a parabola A)the velocity is constant and it ...

Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their camera. They set up vertically alongside the mass and spring. A pointer attached to the mass allows the scale on the meter stick to be read as ...

Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their camera. They set up vertically alongside the mass and spring. A pointer attached to the mass allows the scale on the meter stick to be read as ...

A small 2g plastic ball is suspended by a 20 cm long string in a uniform electric field. If the ball is in equilibrium when the string makes a 15 degree angle with the vertical, what is the net charge on the ball? E=10^3 N/c(answer: 5.25x10^6) Work: I know E=q/r^2 10^3=q/(.2m...

A uniform ladder of mass M and length L leans at an angle theta against a frictionless wall. If the coefficient of static friction between the ladder and the ground is U, determine a formula for the minimum angle at which the ladder will not slip.


If 10g of steam at 110 c is pumped into an insulated vessel containing 100g of water at 20 c, what will be the equilibrium temperature of the mixture? spheat H2O(l)=4.18J/g*c, spheat h2O(g)=2.03J/g*c, heat of vap H2O(l)=2.260kJ/g

A 250gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the pendulum begins to swing. As the pendulum bob passes through its equilibrium position, what will be its velocity?

A 250gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the pendulum begins to swing. As the pendulum bob passes through its equilibrium position, what will be its velocity?

A small plastic ball of mass m = 3.00 g is suspended by a string of length L = 24.5 cm in a uniform electric field, as shown in the figure below. If the ball is in equilibrium when the string makes a θ = 16.0° angle with the vertical as indicated, what is the net charge ...

A clothesline is attached to two fixed ends which are 10.0m apart. A pulley of mass 40.0kg hangs freely in the middle of the line. The sag at the centre is 0.20m. Find the tension in each half of the clothesline.

My answers: 1. Dispatch 2. Discern 3. Enigma 4. Orient 5. Enhance 6. Attribute 7. Nocturnal 8. Exemplify 9. Mobile 10. Attease Animals Possess sensory powers that humans lack. Homing pigeons fly with great speed and accuracy when 1)___(e)d with messages to faraway places. How ...

There are 36 pupils in a class. Each girl is given 8 books and each boy is given 3 books. The total number of books the girls receive is 46 more than the total number of books the boys receive. How many girls are there in the class? The ratio of the number of boys to that of ...

Determine if the number is written in scientific notation. If not, explain; 3 x 100⁻⁶. A. No; it is not written as a power of 10. B. No; the first factor is not a number between 1 and 10. C. Yes; the number is written in scientific notation. I'm almost 200% the answer is A

One interesting property of a Fibonacci sequence is that the ratio of the values of adjacent members of the sequence approach a number called “the golden ratio” or PHI. Create a program that accepts the first two numbers of a Fibonacci sequence as a user input and then ...

can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > 3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n  5 > 3; 6 i say no 2g + 8 is geater than or equal to 3;1 i say yes ...


What is the pH ( 3 significant digits) of a 0.01 M solution of sulfuric acid? Hint is that the first ionization constant is "large", and the second is finite, and the [H+] donated by the second equilibrium depends upon the amount of [H+] already donated by the first ionization...

An unknown mass of a certain solid, initially at 60⁰C, is heated at a uniform at a uniform rate. After 4.0 min the solid reaches its melting point of 80⁰C, and it remains at that temperature for 3.0 min until completely melted. After a further 6.0 min of heating, ...

could you please tell me if this is the correct formula for radiometric date t=1/constant 1n (1+d/p) many thanks ps this is a fantastic website I think that you are after t=1/ë[ln(1+D/P)] where: t = age of the sample D = number of atoms of the daughter isotope in the sample P...

i am a mixed decimal number. the sum of my whole number is equal to the sum of my decimal number. my tenths is half of my hundredths and my ones is twice my tenths. if all my digits are even and my hundredths is 8, what number am i.

A researchr assistant made 160mg of a radioactive, and found that there was only 20mg left after 45hours. a) What is the halflife of this substance? b) Write a function to represent the amount of substance left after x hours c) If the researcher kew he needed 100mg of the ...

Lime (CaO) is used to prevent SO2 from escaping smokestacks of coal burning power plants by the formation of solid CaSO4•2H2O also known as the mineral gypsum. One of the important reactions in the overall process is the dissociation of CaCO3(s). b. If a 12.0 g sample of ...

i need to write the each number in scientifi notation. the brain contatins about 100 trillion nerve connections i wrote: 1 x 10^11 power the volume of the water behind the grand coulee dam is aobut 10.6 million cubic yards i wrote: 1.06 x 10^2 power are these correct?

Procedure: 1. Calculate the mass of iron(II) ammonium sulfate hexahydrate, Fe(NH©þ)©ü(SO©þ)©ü*6H©üO (MW = 392.14) required to make 100 mL of solution that is 0.2M in Fe©÷⁺ ions. You will be asked to show your calculation in the Assignment. 2. Take a 100 mL ...

A power boat of mass 460 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume  contrary to fact  that the resistive force due to the water is ...

what is the first step when solving x/15=3/5? write a proportion using an unknown value x and the ratio 5:6 then solve it. in an orchestra, the ratio of trombones to violas is 1 to 3. a. there are 9 violas. write a proportion that gives the number t of trombones in the ...


how would you solve for y in this problem: x=(y^2+3y)^(1/3) would it equal: y= x^3/y  3 ? and what about this problem: x= 1/[(y^2+3y5)^3] would it equal: y = y/x + 5/y  3? I would appreciate your help very much! <<how would you solve for y in this problem: x=(y^2+3y...

One mole of N2 and three moles of H2 are placed in a flask at 375 C. Calculate the total pressure of the system at equilibrium if the mole fraction of NH3 is 0.21. The Kp for the reaction is 4.31*10^4. I assume this to be the reaction N2 + 3H2 > 2NH3 Help ? Forgot to ...

One mole of N2 and three moles of H2 are placed in a flask at 375 C. Calculate the total pressure of the system at equilibrium if the mole fraction of NH3 is 0.21. The Kp for the reaction is 4.31*10^4. I assume this to be the reaction N2 + 3H2 > 2NH3 Help ? Forgot to ...

The reaction 2SO + O2 ¨ 2SO3 is exothermic. (a) How will a rise in temperature affect the yield of SO3 in an equilibrium mixture of the three gases? (b) Will an increase in pressure raise or lower the yield? (c) In what possible way can the speed of the reaction be ...

For each of these reactions, indicate the property which might be observed in order to determine when equilibrium has been reached. a) PCl5(g) <> PCl3(g) + Cl2(g) b) CaCO3(s) <> CaO(s) + CO2(g) c) H2O(l) <> H2O(g) d) Cl2(g) + 2H2(g) H2(...

For each of these reactions, indicate the property which might be observed in order to determine when equilibrium has been reached. a) PCl5(g) <> PCl3(g) + Cl2(g) b) CaCO3(s) <> CaO(s) + CO2(g) c) H2O(l) <> H2O(g) d) Cl2(g) + 2H2(g) H2(...

describe the effects on cigarette consumption,using supply demand framework, of a antismoking media campaign and price support program for tobacco farmers that raise price of tobacco above equilibrium. explain in details.

A 0.100 mol sample of H2S is placed in a 10.0 L reaction vessel and heated to 1132°C. At equilibrium, 0.0285 mol H2 is present. What is the value of Kc at this temp? 2 H2S(g) 2 H2(g) + S2(g After I do my calculations, I get Kc= (0.0057)2 X (0.00285)/(0.0043)2 and get 5.03 X ...

Two metallic spheres of mass .001 kg hang from a point by .3 m strings. Each is given the same amount and sign of charge. After equilibrium is reached, they each make an angle of 20 degrees relative to the vertical. Determine the amount of charge in each sphere.

Qd=65,00010,000 (P) Qs= 35,000 + 15,000 (p) What is the equilibrium price?


Why is raising a number to the power of 1/2 the same as finding the square root of the number? Can someone please help. Please provide examples. I would appreciate it if you guys can help as soon as possible.

show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.

show that the locus of a point whose distances from two given planes are in a constant ratio, is a plane.

1. What is the procedure of voter identification intended to help prevent fraudulent voting and keep the process organized? A) political socialization B) registration C) gerrymandering D) precinct divisions E) franchising 2. What do you call all the persons entitled to vote in...

10. Knowing that you use 245 KWH 7am – 7pm and 165 KWH 7pm – 7am, answer the follow questions using the chart below. Constant Usage $0.05324/ KWH Daytimer (Most usage between 7am7pm) · As long as most power used is 7am – 7pm, then you receive a 20% discount on power ...

How does the surface areatovolume ratio of a 1mm cube compare to the surface areato volume ratio of a 3mm cube? 1. The ratio does not change. 2. The ratio increases as the cube becomes larger. 3. Increasing the volume increases the ra tio. 4. The 3 mm cube has a higher ...

1. If your teacher raves about you to your parents, this means she thinks you are misbehaving. thinks you are a good student. thinks you might be sick. 2. Read the following excerpt from "Dandelion Wine," then answer question 2."The magic might die by the first of September, ...

Someone please check my answers 1.In the number 854,263,189 what number tells the number of millions. 4 2.Write 4x4x4x4x4 as a power of 4 4^5 3.write 684 in expanded form 600+80+4 4.Turner agrees to buy a boat for $2,800 down and $129 a month for 48 months. What is the total ...

2NO(g) + O2(g) > 2NO2(g) Derive the theoretical rate law and indicate whether or not this is a possible mechanism for the above reaction: (1) 2NO(g) <>* N2O2(g) (fast) (2) N2O2(g) + O2(g) > 2NO2(g) (slow) * indicates equilibrium arrows Thank you!

a 9.0 g ice cube at 10 C is put into a thermos flask containing 100 cm^3 of water at 20 C. by how much has the entropy of the cubewater system changed when the equilibrium is reached? the specific heat of ice is 2220 J/kg K.


HA(aq)+ H2O (l) <> H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the pH. Answer A ...

HA(aq)+ H2O (l) <> H3O+(aq)+ A¯ (aq) Given the reaction above, which of the following will cause an increase in the pH of an equilibrium mixture? Give all answers which apply. A) add KA B) add HA C) remove A¯ D) remove HA E) none of these will affect the pH. Answer A ...

A block is executing simple harmonic motion on a frictionless surface with an amplitude of .100m. At a point 0.060m away from equilibrium point the speed of the block is 0.320m/s. What is the period? What is the displacement when the speed is 0.20m/s?

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...

(a) How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change in entropy due to this heat transfer? (c) How much work is made unavailable, taking the lowest temperature to be 18...

(a) How much heat (J) flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 18°C water in reaching equilibrium? (b) What is the change(J/K) in entropy due to this heat transfer? (c) How much work (J) is made unavailable, taking the lowest ...

A student mixes 35.0 mL of 2.82 M Pb(NO3)2(aq) with 20.0 mL of 0.00221 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate from the resulting solution? What are the values of [Pb2 ], [C2O42–], [NO3–], and [Na ] after the solution has reached equilibrium at 25 °C? Ksp(...

A student mixes 35.0 mL of 2.82 M Pb(NO3)2(aq) with 20.0 mL of 0.00221 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate from the resulting solution? What are the values of [Pb2 ], [C2O42–], [NO3–], and [Na ] after the solution has reached equilibrium at 25 °C? Ksp(...


Suppose NaOH is added to the following system when it is at equilibrium. NH3 (aq) + H2O (l) = NH4 (aq) + OH (aq) a) in which direction will the reaction shift after the NaOH is added? b) will this stress increase or decrease the value of the reaction quotient, Q?

If the real money demand is greater than the real money supply, interest rates must rise to reach equilibrium in the money market as institutions sell bonds to obtain more money.

ogen and oxygen react to form nitrous oxide as: 2 N2 (g) + O2 (g) ⇌ 2 N2O (g) Of a mixture of 0.482 mol N2 and 0.933 mol O2 is placed in a reaction vessel of 10.0 L and allowed to from N2O at a temperature for which Kc = 2.0 X 1037, what will be the composition of the ...

If the government sets a minimum price above the equilibrium price for soybeans, which of the following statements will be correct? A. There will be an efficient level of output produced. B. There will be excess supply. C. There will be excess demand. D. all of the above AnB

an 85.0kg mountaineer remains in equilibrium while climbing a vertical cliff. the tension force in the supporting rope is 745 N. Find the magnitude of the reaction force F, which the cliff exerts on the mountaineer's feet.

Hallie is trying to win the grand prize on a game show. Should she try her luck by spinning a wheel with 6 equal sections labeled 1 to 6 and hope she gets a 5, or should she roll two number cubes and hope she gets the same number on both cubes? Explain. I think that they are ...

Imagine you designed an experiment that investigated the effect of feeding yeast cells different concentrations (0, 5, 10, 15, 25%) of sugar solutions. The yeast used the sugar to do cellular respiration and make CO2 as a waste product. The volume of CO2 released was captured ...

Calculate pCd2 at each of the following points in the titration of 40.00 mL of 0.0040 M Cd2 with 0.0040 M EDTA in the presence of the auxiliary complexing agent NH3. The solution is buffered at a pH of 11.00. Take the NH3 concentration to be a constant 0.100 M. The formation ...

The federal minimum wage was raised to $1.00 per hour in 1956. It was raised to $2.00 per hour in 1974. If it had continued to increase at this same exponential rate, what would it be in 2016? I tried working this problem and got ~$10.08 for 2016. I'm not sure if my answer is ...

Two sources of sound are located on the x axis, and each emits power uniformly in all directions. There are no reflections. One source is positioned at the origin and the other at x = +153 m. The source at the origin emits four times as much power as the other source. Where on...


Which of the following usually makes a substance dissolve faster in a solvent? A: lowering the temperature B: decreasing the number of particles C: agitating the solution D: increasing the particle size of the solute

A generating station is producing 2.00 106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.00 102 /km. (a) Find the power lost in heating the wires if ...

Oganic solvents are not suited to be heated with one of the followings: Oil Bath Electric hot plate Water bath Bunsen burner flame 2 Which of the following is not an inflammable liquid ? Water Ethanol Kerosine Benzene 3 These are some safety precausions necessary in a ...

After taking a medication its concentration in the bloodstream behaves as shown in the graph 650t/(t^3+200), where the x values are hours since first taking the medication and y is the concentration of the medication (mg/cc) in the blood stream after the given number of hours...

After taking a medication its concentration in the bloodstream behaves as shown in the graph 650x/(x^3+200), where the x values are hours since first taking the medication and y is the concentration of the medication (mg/cc) in the blood stream after the given number of hours...
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