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Questions Asked on February 21, 2012

For the following reaction, Kp = 3.5 104 at 1495 K.H2(g) + Br2(g) 2 HBr(g) What is the value of Kp for the following reactions
1. 3 answers
2. asked by Elizabeth
3. 11,197 views
A 60 kg boy on roller skates moves with a speed of 5 m/s. He runs into a 40 kg girl on skates. Assuming they cling together
1. 2 answers
2. asked by judy
3. 5,186 views
At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the
1. 2 answers
2. asked by Lilly
3. 4,438 views
A sensor light installed on the edge of a home can detect motion for a distance of 50ft. in front and with a range of motion of
1. 2 answers
2. asked by melissa
3. 3,994 views
It must be nice," she said. "It must be very nice. I wish women could do such things.""It ain't the right kind of a life for a
1. 7 answers
2. asked by Jess
3. 3,526 views
1. The time required to complete a project is normally distributed with a mean of 80 weeks and a standard deviation of 10 weeks.
1. 4 answers
2. asked by Gracie
3. 3,307 views
I have to find the integral of(e^3lnx + e^3x)dx. Can someone help me?
1. 2 answers
2. asked by Sarah
3. 3,009 views
Binomial problems: BasicAnita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of
1. 3 answers
2. asked by Armando
3. 2,823 views
Which of the the following statements is true in regard to limited data sets?A.Limited data sets contain some individual
1. 1 answer
2. asked by Brenna
3. 2,793 views
what is the voltage acros a 60.0 resistor with a current of 3 1/3 a?
1. 1 answer
2. asked by Hannah
3. 2,545 views
How do you write the chemical equation for neutralization of nitric acid, HNO3, with magnesium hydroxide, Mg (OH)2, first with
1. 1 answer
2. asked by Holly
3. 2,366 views
The graph represents the purchasing power if the inflation is 12%. Estimate the purchasing power of a monthly salary of $3000?
1. 2 answers
2. asked by Kayla
3. 2,271 views
The drawing shows box 1 resting on a table, with box 2 resting on top of box 1. A massless rope passes over a massless,
1. 1 answer
2. asked by Natasha
3. 2,244 views
The equilibrium constant Kp for the reaction below at 700°C is 0.76 atm.CCl4(g) --> C(s) + 2 Cl2(g) Determine the initial
1. 1 answer
2. asked by Andre
3. 2,223 views
A piece of copper wire of resistance R is cut into 10 equal lengths. These parts are connected in parallel. How does the joint
1. 2 answers
2. asked by Anonymous
3. 2,217 views
ch3o what is functional group
1. 1 answer
2. asked by samira
3. 1,969 views
A brick is thrown upward from the top of a building at an angle of 25° to the horizontal and with an initial speed of 16 m/s.
1. 1 answer
2. asked by sid
3. 1,856 views
The Washington Monument is the tallest structure in Washington D.C. At the same time the monument casts a shadow that is about
1. 5 answers
2. asked by Eleanna
3. 1,822 views
I need a thesis statment for an esaay. I have read the short story "the large ant" but cant think of any thesis statment. Its
1. 3 answers
2. asked by Sarah
3. 1,795 views
2L of 6M HCl
1. 1 answer
2. asked by cindy
3. 1,732 views
Emma bought 6 new books for her collection. This increased her collection by 12%. How many books did she have before her
1. 5 answers
2. asked by Anonymous
3. 1,723 views
For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00 L rigid container are
1. 1 answer
2. asked by Elizabeth
3. 1,711 views
A catapult used to hold a stone of mass 500g is extended by 20cm with an applied force F.If the stone leaves with a velocity of
1. 3 answers
2. asked by Godslight
3. 1,703 views
A 50 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure.A)What horizontal force F is
1. 1 answer
2. asked by Steve
3. 1,657 views
can someone please explain f1d1 = f2d2
1. 2 answers
2. asked by jenny
3. 1,646 views
10. In the end of the story, most of the inhabitants of Rip Van Winkle's villagea. doubt his truthfulness b. believe, enjoy, and
1. 2 answers
2. asked by mysterychicken
3. 1,637 views
Scientist study many factors that allow them to predict weather. Which factor most directly affects the movement of air?a) air
1. 11 answers
2. asked by Miliano
3. 1,612 views
You operate a gaming Web site, where users must pay a small fee to log on. When you charged $3 the demand was 520 log-ons per
1. 1 answer
2. asked by Erin
3. 1,587 views
An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg.(a) What is the net force acting upon the
1. 2 answers
2. asked by Mina
3. 1,556 views
Find the slope of the line passing through the points (-3, -10) and (4, 5)
1. 1 answer
2. asked by Wendi
3. 1,497 views
Consider an ideal pulley system. Pull one end of a rope downward by 1 meter with 50 N of force, and you'll lift a 200-N load a
1. 1 answer
2. asked by britches
3. 1,474 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 2 answers
2. asked by Steve
3. 1,445 views
Simplify:sin(x-y)cosy+cos(x-y)siny = (sinxcosy-cosxsiny)cosy+(cosxcosy+sinxsiny)siny = ??? What do I do next??? Please Help and
1. 4 answers
2. asked by Anonymous
3. 1,441 views
Consider the reaction below.3 O2(g) --> 2 O3(g) At 175°C and a pressure of 128 torr, an equilibrium mixture of O2 and O3 has a
1. 1 answer
2. asked by Elizabeth
3. 1,438 views
6. You have kinetic energy when you run. If you run three times as fast, you'll have a kinetic energy ____________________.A) 3
1. 1 answer
2. asked by britches
3. 1,427 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 0 answers
2. asked by Steve
3. 1,418 views
So, they give me a word equation, where I am suppose to try and create a balanced equation for it.Ammonium phosphate and barium
1. 2 answers
2. asked by Matthew
3. 1,403 views
As Sales Manager for Montevideo Productions, Inc., you are planning to review the prices you charge clients for television
1. 1 answer
2. asked by Angel
3. 1,399 views
1) Given this data in a study on how the rate of a reaction was affected by the concentration of the reactantsInitial Rate, RUN
1. 1 answer
2. asked by Hannah
3. 1,376 views
General Hospital has a current ratio of 0.5. Which of the following actions would improve (increase) this ratio? (Hint: Create a
1. 0 answers
2. asked by W
3. 1,358 views
A boat which can travel at 5m/s in still water is crossing a river 200 m wide.the rate of the flow of the river is 2 m/s assumed
1. 1 answer
2. asked by Jat
3. 1,348 views
How many different whole numbers can be made with the digits 5, 7, 8? For this problem, each different whole number may have 1,
1. 1 answer
2. asked by eric
3. 1,326 views
A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s
1. 2 answers
2. asked by Heather
3. 1,321 views
An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg.(a) What is the net force acting upon the
1. 1 answer
2. asked by Mina
3. 1,311 views
Consider an ideal pulley system. Pull one end of a rope downward by 1 meter with 50 N of force, and you'll lift a 200-N load a
1. 2 answers
2. asked by britches
3. 1,308 views
Sally is driving her car and talking on her cell phone. Statistically this behavior has been shown to be quite dangerous and
1. 2 answers
2. asked by Tessy
3. 1,267 views
is conductivity a physical or chemical property
1. 4 answers
2. asked by bob
3. 1,265 views
I have to find the calculation of Van't Hoff factor "i" for NaCl and sucrose. The directions say to use the equationdelta Tf =
1. 6 answers
2. asked by Hannah
3. 1,246 views
Balance the follow equation using change in oxidation number method. (1) P4 + HNO3 = H3PO4 +NO2 + H2O (2) Na2Cr2O7 + FeCl2 + HCl
1. 1 answer
2. asked by Chemo
3. 1,241 views
A 5.7- kg concrete block rests on a level table. A 4.0- kg mass is attached to the block by a string passing over a light,
1. 1 answer
2. asked by Eva
3. 1,236 views
¿Cómo son las monedas de pesos mexicanos?We had to do a reading and type the answers-not sure about this questionHay monedas
1. 4 answers
2. asked by Audrey
3. 1,215 views
Thank you very much. Here is a summary I need to prepare for tomorrow. I also need to rephrase the last sentence. Thank you very
1. 1 answer
2. asked by Henry2
3. 1,211 views
Darius uses the shadow method to estimate the height of a flagpole. He finds that a 5 foot stick casts a 4 foot shadow. At the
1. 1 answer
2. asked by Lizette
3. 1,198 views
What is chemical name for Na2Cr2O2?
1. 2 answers
2. asked by Chemo
3. 1,194 views
A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 34.0 above
1. 1 answer
2. asked by Rei
3. 1,193 views
Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function
1. 1 answer
2. asked by Mike
3. 1,188 views
You have just opened a new nightclub, Russ' Techno Pitstop, but are unsure of how high to set the cover charge (entrance fee).
1. 0 answers
2. asked by Anonymous
3. 1,188 views
I included my doubts using question marks. I need to rephrase "hopefuls", "disposable" and the last sentence. I really hope you
1. 1 answer
2. asked by Henry2
3. 1,182 views
Find the amount of CuSO4.5H2O needed to prepare 500 mL of 0.25 M solution.
1. 1 answer
2. asked by Sarah
3. 1,174 views
A young boy swings a yo-yo horizontally above his head so that the yo-yo has a centripetal acceleration of 275 m/s2. If the
1. 2 answers
2. asked by Anonymous
3. 1,167 views
ROMEO AND JULIETwhat are juliets feelings towards romeo in act 3 scene 2 from lines 1-35?
1. 4 answers
2. asked by ali
3. 1,159 views
Use the angle at the tail of v(arrow above) and the magnutude of v to calculate the values of vx and vy. How do these values
1. 2 answers
2. asked by geekgirl05
3. 1,145 views
can any two triangles be joined to make a rhombus
1. 2 answers
2. asked by ezabai
3. 1,137 views
f someone scored two Standard Deviations above the Mean on a standardized test where the Mean = 100 and the Standard Deviation =
1. 1 answer
2. asked by Annie
3. 1,134 views
A 200-L iron tank has a mass of 36 kg. a) Will it float on seawater if empty? b) What mass of potatoes could be added such that
1. 1 answer
2. asked by Jessica
3. 1,131 views
the diving club offers 4 beginning diving classes each day . each class has room for 6 people . how many people can take classes
1. 2 answers
2. asked by ahoids
3. 1,127 views
Business and Economics: For a business to make a profit it is clear that revenue R must be greater than cost C; in short, a
1. 1 answer
2. asked by momin
3. 1,124 views
A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched
1. 1 answer
2. asked by Mary
3. 1,103 views
Simplify #3:[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
1. 1 answer
2. asked by Anonymous
3. 1,102 views
Which requires more power? lifting a 25 kg bag of cement 10 m vertically in 1 minute, or lifting a 50 kg bag 5?
1. 1 answer
2. asked by britches
3. 1,101 views
1.) Calculate delta rH for the freezing of water at one bar and -10 degrees C. The heat capacities are H2O(s)=36.9 JK-1mol-1 and
1. 1 answer
2. asked by nicole
3. 1,087 views
The amount of carbon dioxide (in pounds per 15,000 cubic miles) released by a certain SUV depends on its fuel efficiency
1. 1 answer
2. asked by Eric
3. 1,086 views
The resistance of a 395 m long aluminum rod is 3580 .A. Find the cross-sectional area of the rod mm2 B. Find the current in the
1. 0 answers
2. asked by Anonymous
3. 1,068 views
Let sct 3 , where c 1.0 m/s 3 . Compute the average speed over the time intervals �t1 1.0 10 �1 s, �t2 1.0 10 �2 s, and �t3 1.0
1. 1 answer
2. asked by juan
3. 1,064 views
Two blocks are positioned as shown below. block A has a mass of 15 kg and hangs on one end of a cable that passes over a
1. 1 answer
2. asked by Eastern Illinois University
3. 1,056 views
A crane is holding a bloc of metal of 10 000kg. If the crane's arm weights 1000kg and is 10,0m long, what is the tension in
1. 0 answers
2. asked by Raf
3. 1,053 views
Point E is the centroid of triangle ABC. Find DB.AF = 10x=3 EF = 2x+5 EB = 4x+3 This is for median of triangles.
1. 2 answers
2. asked by Anonymous
3. 1,045 views
The boiling point of an aqueous solution is 102.35 °C. What is the freezing point? Constants can be found here.
1. 3 answers
2. asked by Heather
3. 1,044 views
A loaf of bread was shared by four people. The amounts they each received were in the ratio of 2/3 : 1/2 : 1/3 : 1/4. What
1. 2 answers
2. asked by CrissyXD
3. 1,009 views
why dna replication necessary to life? i think it because it carry genetic information?
1. 0 answers
2. asked by Shreya
3. 1,008 views
At 0.100 s intervals, the xcoordinates of a particle are 0, 1.01 cm, 2.05 cm, and 3.12 cm. Estimate the instantaneous velocity
1. 2 answers
2. asked by juan
3. 1,005 views
Add. (2a^4-2a^3+3a^2+14a-5)+(a^5+7a^3+7a^2-3a+2)+(-5a^4+a^2-8a-6)
1. 1 answer
2. asked by jossie
3. 1,005 views
Is this quote a metaphor?"That's a bright direction, there's a glowing there." In context it seems like a metaphor since the
1. 3 answers
2. asked by Joshua
3. 1,001 views
The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the
1. 1 answer
2. asked by Natasha
3. 996 views
Writeacher, I need to rephrase a few verbs related to film stars. I also wanted to prepare a sort of vocabulary to be used when
1. 1 answer
2. asked by Henry2
3. 995 views
For the reaction given below, the frequency factor A is 8.7 multiplied by 1012 s-1 and the activation energy is 63 kJ/mol.NO(g)
1. 1 answer
2. asked by Tanyo
3. 994 views
At 2200°C, K = 0.050 for the following reaction.N2(g) + O2(g) 2 NO(g) What is the partial pressure of NO in equilibrium with N2
1. 1 answer
2. asked by Elizabeth
3. 967 views
In order to share an XML file among different systems and programs, this XML file need to checked well, what are the two things
1. 1 answer
2. asked by Lisa
3. 962 views
A water-skier lets go of the tow rope upon leaving the end of a jump ramp at a speed of v1 = 14.7 m/s. the skier has a speed of
1. 1 answer
2. asked by Sam
3. 949 views
At –10.00 °C (a common temperature for household freezers), what is the maximum mass of fructose (C6H12O6) you can add to
1. 1 answer
2. asked by Heather
3. 943 views
For this problem, assume that you are to pick 3 cars from the motor pool, which contains 6 subcompact cars, 6 compact cars, and
1. 1 answer
2. asked by victoria
3. 941 views
Explain, using collision theory, the effect of decreasing temperature on the rate of a chemical reaction.Explain, using
1. 2 answers
2. asked by Aria
3. 940 views
The table shows the number of classrooms needed for different numbers of students.Total Students Classrooms 66 3 110 5 154 7 220
1. 4 answers
2. asked by Colton
3. 938 views
Life would best be symbolized by what?A. darkness B. island C. tree D. stone
1. 5 answers
2. asked by Katlin Hanson
3. 936 views
In the decomposition reaction 2 KCIO3 (s) --> 2KCI (s)+3O2(g),what volume of O2 gas at STP would be produced from 3.66 of KCIO3
1. 1 answer
2. asked by Sean Z.
3. 927 views
Clara Wieck Schumann's "Forward" was written for a/an?
1. 1 answer
2. asked by wendy
3. 908 views
Assume that there are 7 different issues of Newsweek, 8 different issues of Time, and 4 different issues of Sports Illustrated,
1. 0 answers
2. asked by victoria
3. 900 views
Sand is poured onto a level piece of ground at the rate of 0.25 m^3/min and forms a conical pile whose height is equal to its
1. 3 answers
2. asked by help
3. 884 views
Your friend's 11.1g tassel hangs on a string from his rear-view mirror. When he accelerates from a stop light, the tassel
1. 1 answer
2. asked by Brice
3. 873 views
In your opinion should there be a specific curriculum included in school and college syllabus which would teach students on
1. 1 answer
2. asked by sharday
3. 863 views

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