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Megan

Questions (631)

Determine the mass of phosphoric acid that can be produced by the reaction of 1 ton of phosphate rock, Ca(PO4)2, and sulfuric
1. 1 answer
2. 717 views
Determine the mass of phosphoric acid that can be produced by the reaction of 1 ton of phosphate rock, Ca(PO4)2, and sulfuric
1. 0 answers
2. 463 views
Determine the mass of phosphoric acid that can be produced by the reaction of 1 ton of phosphate rock, Ca(PO4)2, and sulfuric
1. 0 answers
2. 516 views
2sin^2x+3cosx=3 find all solutions in the interval [0,2pi]
1. 1 answer
2. 1,311 views
2sin^2x+3cosx=3
1. 1 answer
2. 499 views
if a 120-g mass is placed at the 25-cm mark and a 25-g mass at the 10-cm mark, where should a 500-g mass be placed to balance
1. 1 answer
2. 654 views
The shorter leg of a right triangle is 14 feet shorter than the longer leg. The hypotenuse is 26 feet. How long is each leg?
1. 2 answers
2. 2,981 views
If Betsy leaves Town A traveling due east for 6 miles to Town B, then turns due north and travels 9 miles to Town C, how far
1. 1 answer
2. 754 views
If Betsy leaves Town A traveling due east for 6 miles to Town B, then turns due north and travels 9 miles to Town C, how far
1. 1 answer
2. 700 views
A 1000 kilogram car traveling at 25 mph hits a 60 kg person. How much force is exerted on the person?
1. 1 answer
2. 505 views
A 1000 kilogram car traveling at 25 mph hits a 60 kg person. How much force is exerted on the person?
1. 1 answer
2. 513 views
Name 3 different ways in which these numbers can be classified.11 4.5 50 8 16 3/5 100 20 9 8.6 14 1/2
1. 1 answer
2. 353 views
Name some different ways in which these numbers can be classified.11,4.5,50,8,16,3/5,100,20,9,8.6,141/2
1. 0 answers
2. 315 views
Derive the stationary target equations:v1 = [(m1-m2)/(m1+m2)]v1 v2 = [(2m1)/(m1 + m2)] v1
1. 0 answers
2. 369 views
Water is moving with a speed of 5.0 m/s through a pipe with a cross-sectional area of 4.2 cm2. The water gradually descends 8.2
1. 1 answer
2. 966 views
If n ÷ d gives a display of 16.8, does d\n? Why
1. 4 answers
2. 491 views
What is the molarity of NaOCL in a solution of bleach if 10.00mL requires 22.35mL of 0.0291 M Na2S2O4 to reach the endpoint.
1. 1 answer
2. 712 views
An office window has dimensions 3.6 m by 2.5 m. As a result of the passage of a storm, the outside air pressure drops to 0.925
1. 1 answer
2. 525 views
How fast must a 144 g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with =
1. 0 answers
2. 783 views
Calculate the energy difference (E) for the transition from n = 1 to n = 6 energy levels of hydrogen per 1 mol of H atoms.
1. 0 answers
2. 734 views
Suppose the ΔGof, ΔHof, and ΔSo are available and valid at 298 K. Which equation(s) could be used to calculate the change in
1. 0 answers
2. 762 views
how quickly must a 54.7 g tennis ball travel i order to have a de Broglie wavelength that is equal to a photon of green light?
1. 2 answers
2. 711 views
Is this a simile or a metaphorThe rain felt like small kisses on Rosemary's face,
1. 3 answers
2. 1,359 views
When 32.0 mL of 0.560 M H2SO4 is added to 32.0 mL of 1.12 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises
1. 1 answer
2. 1,109 views
A 30.5 g sample of an alloy at 93.7°C is placed into 50.1 g water at 23.4°C in an insulated coffee cup. The heat capacity of
1. 0 answers
2. 1,044 views
The only force acting on a 3.0 kg body as it moves along the positive x axis has an x component Fx = -9x N, where x is in
1. 0 answers
2. 1,138 views
A 26.5 g sample of ethylene glycol, a car radiator coolant, loses 675 J of heat. What was the initial temperature of ethylene
1. 1 answer
2. 1,038 views
What is the enthalpy change when 17.0 g of water is cooled from 36.0°C to 6.40°C?
1. 2 answers
2. 673 views
3 M HCl solution was used to generate CO2 from the CaCO3 . What will bethe effect on the value reported for the molar volume of
1. 2 answers
2. 861 views
A mixture of gases collected over water at 14C has a total pressure of 1.198 atm and occupies72 mL. How many grams of water
1. 1 answer
2. 550 views
Posted by Megan on Wednesday, October 13, 2010 at 5:08pm. I just reposted this from the earlier post-I have two questions about
1. 1 answer
2. 776 views
I have two questions about translation. If asked this question, how do I answer it. Cual es tu numero de telefono? I know it is
1. 5 answers
2. 1,020 views
How to do Excel Spreadsheet- Formulas?I have to do an excel spreadsheet for my computer class. Problem is my professor didn't at
1. 1 answer
2. 716 views
Posted by Megan on Tuesday, October 12, 2010 at 3:44pm.I have a question if someone could help, please explain it. Given b = -1
1. 1 answer
2. 596 views
Posted by Megan on Tuesday, October 12, 2010 at 3:44pm.I have a question if someone could help, please explain it. Given b = -1
1. 2 answers
2. 624 views
I have a question if someone could help, please explain it.Given b = -1 and h = -1, what is the equation of the graph if the
1. 1 answer
2. 576 views
the measure of the supplement of an angle is 40 more than two times the measure of the complement of the angle find the measure
1. 2 answers
2. 6,681 views
19. Burning coal and oil in a power plant produces pollutants such as sulfur dioxide, SO2. The sulfur-containing compound can be
1. 1 answer
2. 1,396 views
Disulfur dichloride, S2Cl2, is used to vulcanize rubber. It can be made by treating molten sulfur with gaseous chlorine:S8(l) +
1. 1 answer
2. 1,639 views
Calculate the pH, to one decimal place, of the solution made by mixing 21.0 mL of 0.33 M HNO3 with 121.0 mL of 0.32 M formic
1. 1 answer
2. 588 views
Experiment 10: Which Fuels provide the most heat?There are many possible sources of error in this experiment. List three that
1. 0 answers
2. 1,223 views
Experiment on Which Fuels Provide the Most Heat? Comparison of the Energy Content of Fuels.Suppose you put 50 mL of water in the
1. 0 answers
2. 988 views
OH- + C6H5CH2COOH H2O + C6H5CH2COO-What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?
1. 2 answers
2. 575 views
H- + C6H5CH2COOH = H2O + C6H5CH2COO-What is the K for the reaction above in terms of Ka's, Kb's, Kw etc.?
1. 1 answer
2. 525 views
At -8 degrees celseis what state is bromime in?
1. 1 answer
2. 421 views
2 NO2(g) N2(g) + 2 O2(g)The ΔH° for the reaction above is -66.4 kJ. The system is initially at equilibrium. What happens if N2
1. 6 answers
2. 1,533 views
H2(g) + I2(g) 2 HI(g)The forward reaction above is exothermic. At equilibrium, what happens if I2 is removed from the reaction
1. 2 answers
2. 2,063 views
Find the volume in liters of 0.452 M manganese(II) sulfate that contains 54.5 g of solute?
1. 1 answer
2. 540 views
If your car decelerates at a rat of 4.5 m/s2 how long will it take for your car to stop?????
1. 1 answer
2. 458 views
is INH(CH3)3 an acid, base or neutral?
1. 1 answer
2. 380 views
If you are making 180.0 mL of 3.00% (m/m) CuSO45 H2O, how many grams of the solute should you use?I can't figure out what to do
1. 1 answer
2. 369 views
Suppose you are given a list of solutions (all with nonvolatile solutes) and their concentrations. You pick out the one with the
1. 1 answer
2. 887 views
Why do the stem changing forms for -zer and -cer have special endings??
1. 1 answer
2. 532 views
Why do the stem changing forms for -zer and -cer have special endings??
1. 1 answer
2. 467 views
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained?1A + 3B -> 2C + 4D MC answers: 23 11 1
1. 2 answers
2. 471 views
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained?1A + 3B -> 2C + 4D MC answers: 23 11 1
1. 1 answer
2. 566 views
I need to find the present progressive teses of the words lie, lay,awake
1. 1 answer
2. 472 views
The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. I am a prime number. What number am I? I
1. 1 answer
2. 452 views
If your weight is 120 pounds and your mass is 54 kilograms, how would those values change if you were on the moon? The
1. 2 answers
2. 2,257 views
H.) A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in
1. 2 answers
2. 939 views
A 1 m solution of MgCl2 will cause the decrease in the freezing point of water to be approximately ___ than that caused by a 1 m
1. 2 answers
2. 475 views
How many calories of heat are needed to raise 10 g water from 20 to 21 degree celcius
1. 1 answer
2. 514 views
For a portion of Junior year next year, we're supposed to build a human skeleton out of anything we can find. So most people
1. 1 answer
2. 1,110 views
at the veterinarian's office terri learned that her dot weighed 4 times as much as her cat. together the pets weighed 40 lbs.
1. 1 answer
2. 1,615 views
We just learned equations & inequalities today and im so confused on how to do it!will someone help me??? -5 + 2 < -2
1. 2 answers
2. 565 views
I NEED TO KNOW ASAP what a Keq is and what the formula of it would be.
1. 1 answer
2. 412 views
I really don't know how to approach this problem and I really need help.Using the average molarity of your initial acetic acid
1. 1 answer
2. 805 views
An unknown compound analyzes to be 42.85% C, 7.20% H, and 49.95% N. A 0.915 g sample of the gas occupies 250. mL at 760. mm Hg
1. 1 answer
2. 651 views
To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure
1. 1 answer
2. 497 views
NH3(g) + O2(g) NO2(g) + H2O(g)Consider the above unbalanced equation. What volume of NH3 at 950. mm Hg and 33.5°C is needed to
1. 1 answer
2. 819 views
To what Celsius temperature must 44.5 mL of methane gas at 43.0°C be changed so the volume will be 63.0 mL? Assume the pressure
1. 1 answer
2. 467 views
Which of the following increase the melting point of an ionic compound?decreased charge on the ions increased size of the ions
1. 1 answer
2. 532 views
What effect does lowering the pressure on the surface of water have on the boiling point?It increases the boiling point It
1. 1 answer
2. 747 views
As ice melts at standard pressure, its temperature remains at 0°C until it has completely melted. Its potential energy:increase
1. 3 answers
2. 3,870 views
Consider the infinite series of the form:(+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and
1. 1 answer
2. 431 views
Consider the infinite series of the form:(+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and
1. 0 answers
2. 581 views
Consider the infinite series of the form:(+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and
1. 0 answers
2. 562 views
Consider the infinite series of the form:(+/-)3(+/-)1(+/-)(1/3)(+/-)(1/9)(+/-)(1/27)(+/-)...(+/-)(1/3^n)(+/-)... (A) Find x and
1. 0 answers
2. 618 views
How do I decide whether something is polar or not?
1. 2 answers
2. 837 views
When the Kelvin temperature of an enclosed gas doubles, the particles of the gas ____.a) strike the walls of the container with
1. 2 answers
2. 1,790 views
What happens to the temperature of a gas when it is compressed?
1. 2 answers
2. 480 views
For each trial, enter the amount of heat gained by the chemical system of ammonium nitrate, qrxn. The specific heat of water is
1. 3 answers
2. 5,867 views
Which of the following electron configurations represent an excited state?1s22s22p1 1s22s22p63s2 1s1 1s22s12p63s1 1s12s22p63p3
1. 1 answer
2. 1,924 views
If 20.00mL of a solution that contains oxalate ion requires 10.00mL of 0.020M MnO4- solution in a titration, what was the
1. 1 answer
2. 647 views
How do I find the emperical formula of16.9% Fe3+ 39.7% C2O42- 43.4% H2O
1. 1 answer
2. 478 views
Ms. Ross's class has 24 students.2/3 of her students have brown hair.The rest have blonde hair.How many students have blonde
1. 2 answers
2. 634 views
Write an expression that equals 468 that includes a combination that adds up to 100
1. 5 answers
2. 254 views
How many miles of sodium hydrogen carbonate would be needed to react with 150.0 g of sulferic acid?
1. 1 answer
2. 613 views
If 15.0 kJ are released when 1.40 g of F2 reacts with an excess of SiH4, complete the thermochemical equation below.SiH4(g) + 2
1. 1 answer
2. 898 views
94.0 g of a metal at 88.0°C are added to 55.0 g of water at 26.0°C. When the system reaches constant temperature, the
1. 5 answers
2. 499 views
What is the specific heat of a substance if 35.5 kJ are required to raise the temperature of 345 g of the substance from 69.0°C
1. 1 answer
2. 566 views
Copper has a specific heat of 0.387 J/g·°C. How much energy is required to raise the temperature of 140. g of copper from
1. 1 answer
2. 902 views
A 5.80 g sample of SiH4 and an excess of oxygen were placed in a reaction container surrounded by 3.40 kg of water. The initial
1. 3 answers
2. 1,013 views
TiO2(s) + H2(g) Ti(s) + H2O(g)(a) Consider the unbalanced equation above. What is the maximum mass of titanium that can be
1. 2 answers
2. 1,128 views
The question is...find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. Then
1. 1 answer
2. 2,133 views
This is for my English 101 class, I have to write a 3 page paper. Why did the recent history of liberalism and neoconservatism
1. 5 answers
2. 1,043 views
If you are initially 1.50 km [E] of home and 0.65 hours later you are 0.75 km [N 45 degrees E] of home, what is your change in
1. 1 answer
2. 392 views
If you are initially 1.50 km [E] of home and 0.65 hours later you are 0.75 km [N 45 degrees E] of home, what is your change in
1. 0 answers
2. 370 views
Assume that the producer has 8 skits and 5 commercials available.In how many ways can the producer create a television show?
1. 1 answer
2. 918 views
What is the country that lies north of the eastern Canada?
1. 1 answer
2. 457 views

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