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Questions Asked on May 20, 2010

Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is
1. 6 answers
2. asked by Keith
3. 11,738 views
A potential difference of 4.75 kV is established between parallel plates in airf the air becomes ionized (and hence electrically
1. 3 answers
2. asked by Sally
3. 5,442 views
When 2 mol of solid magnesium (Mg) combines with 1 mole of oxygen gas (O2), 2 mol of solid magnesium oxide (MgO) is formed and
1. 2 answers
2. asked by Kim
3. 4,598 views
The probability that a university graduate will be offered no jobs within a month of graduation is estimated to be 5%. The
1. 5 answers
2. asked by Miranda
3. 4,282 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 2 answers
2. asked by Jack
3. 3,931 views
the molar heat of vaporization for water is 40.79 kJ/mol. How would you express this heat of vaporization in joules per gram.
1. 2 answers
2. asked by Sienna
3. 3,175 views
Aluminum nitrate and ammonium chloride react to form alluminum chloride, nitrogen, and water. what mass of aluminum chloride is
1. 2 answers
2. asked by amanda
3. 2,807 views
The specific heat of copper is .4 joules/gram degrees Celsius. How much heat is needed to change the temperature of a 30 gram
1. 2 answers
2. asked by Jake
3. 2,452 views
What are the equations for the following?Positron emission from silicon-26 and Sodium-22 undergoes electron capture I really
1. 4 answers
2. asked by Aubrey
3. 2,427 views
If f(x) = - 2x2 + 2x - 3, what is f(5)?
1. 3 answers
2. asked by Bill
3. 2,264 views
the circle is circumscribed by the pentagon as shown (not drawn to scale). If QZ=10, YX=9, XW=9, UW=17, and SU=10, find the
1. 3 answers
2. asked by josh
3. 2,168 views
A baby bounces up and down in her crib. Her mass is 13.5 kg, and the crib mattress can be modeled as a light spring with force
1. 3 answers
2. asked by gill
3. 2,130 views
Growth and DecayDave bought a new car 8 years ago for $8400. Tobuy a new car comparably equipped now would cost $12,500.
1. 1 answer
2. asked by Anonymous
3. 2,053 views
A chunk of silver has a heat capacity of 42.8 J/degrees C and a mass of 181g. Calculate the specific heat of silver.Did I do
1. 1 answer
2. asked by Ralph
3. 1,902 views
when 45g of an alloy is dropped into 100.0 g of water at 25c, the final temperature is 37c. what is the specific heat of the
1. 1 answer
2. asked by andrea
3. 1,864 views
Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive
1. 1 answer
2. asked by Brett
3. 1,837 views
write and balanced equation for the formation of magnesium nitride from it elements
1. 2 answers
2. asked by nia
3. 1,819 views
at a deep-sea station 200m below the surface of the Pacific Ocean, workers live in a highly pressurized environment. How many
1. 3 answers
2. asked by Billy
3. 1,770 views
A chunk of silver has a heat capacity of 42.8 J/degrees C and a mass of 181g. Calculate the specific heat of silver.
1. 2 answers
2. asked by Ralph
3. 1,760 views
Find the area of the shaded region.the outter shape is a rectangle and the inside shape is a triangle everything but the
1. 1 answer
2. asked by ashley
3. 1,559 views
Algebra For questions 1-5, find the value of the variable.1. x = (1 point) 2. y = (1 point) 3. x = (1 point) 4. x = (1 point) 5.
1. 4 answers
2. asked by Sasha Z.
3. 1,513 views
I need to find the dimensions of this rectangular prism. It has a volume of 108 cubic inches. The length and width of the base
1. 1 answer
2. asked by Brett
3. 1,481 views
a vending machine takes only nickels and dimes. there five times as many dims as nickels in the machine. the face value of the
1. 1 answer
2. asked by sally
3. 1,442 views
A rectangular prism has the following characteristics. It has a volume of 71 cubic inches. The sum of the three lengths is 14.
1. 1 answer
2. asked by Brett
3. 1,347 views
how do you calculate the area of a trapezoid the has the base of 11.25 the height of 6.5 and the top of the trapezoid 7.50
1. 1 answer
2. asked by danica
3. 1,325 views
a balloon contains 30.0 L of helium gas at 103 kPa. What is the volume of the helium when the balloon rises to an altitude where
1. 1 answer
2. asked by Brad
3. 1,314 views
I'm writing a report by interpreting myself as a Jew during the holocaust and I have to write a journal entry about 8 to 10
1. 6 answers
2. asked by Jennifer
3. 1,306 views
A pair of dice is rolled~ A possible event is rolling a multiple of 5.What is the probability of the complement of the event? A.
1. 2 answers
2. asked by NatoshaMarie
3. 1,277 views
Mrs.Ryan gave her class cupcakes. She gave half the class yellow, a third of her class chocolate and the remaining students
1. 1 answer
2. asked by YArmainee
3. 1,257 views
How does energy flow through the biosphere?
1. 0 answers
2. asked by Olivia
3. 1,252 views
"Would it be possible to have an addition polymer synthesized from a monomer that has only single bonds? Why or why not?"==> I
1. 3 answers
2. asked by Emily
3. 1,219 views
How do I draw the diagram/graph for this problem?Find the exact values of the six trigonometric functions of theta if the
1. 1 answer
2. asked by Ana
3. 1,208 views
The question is how many kilojoules are required to melt 24g of ice at 100 degrees celsius?Can you please correct me if im
1. 1 answer
2. asked by evelyn
3. 1,186 views
Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is
1. 2 answers
2. asked by Kieth
3. 1,109 views
How many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees C to 85 degrees C?Can you please explain
1. 2 answers
2. asked by Sarah
3. 1,091 views
Simplify: (6y + 10z) - (13y - 5z + 4)
1. 3 answers
2. asked by Cody
3. 1,031 views
How many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees C to 85 degrees C?Did I do this right?
1. 1 answer
2. asked by Sarah
3. 1,012 views
One paving machine can surface 1 km of highway in 6 hours. Another can surface 1 km of highway in 8 hours. how long would it
1. 0 answers
2. asked by Steven
3. 1,009 views
The measures of the angles in quadrilaterals are in the extended ratio of 3:4:5:6. What are the measures of the angles?
1. 1 answer
2. asked by Emily
3. 942 views
We have a triangular prism that has the following characteristics. It has a volume of 360 cubic inches. The base of the triangle
1. 1 answer
2. asked by Brett
3. 916 views
A sample of oxygen occupies 10.0 L under a pressure of 105 kPa. At whatpressure will it occupy 13.4 L if the temperature does
1. 1 answer
2. asked by maria
3. 911 views
The equation for the reaction of sodium with water is as follows:2Na(s) �2H2O(l) £ H2(g) �2NaOH(aq) How many liters of H2 are
1. 1 answer
2. asked by maria
3. 892 views
IN THIS EXPERIMENT YOU FILL A PREFROM WITH WATER AND PUT A DRINKING STRAW INTO THE PREFROM AND USE CLAY TO SEAL THE OPENING.It
1. 1 answer
2. asked by POPCORN
3. 892 views
WHICH FUNCTION LINEAR EXPONENTIAL OR QUADRATIC BEST MODELS THIS DATA(-1,3),(1,3),(3,27),(5,75),(7,147)
1. 1 answer
2. asked by miranda
3. 888 views
Let Y be a random number between 0 and 1 generated by an idealized random number generator. Find the following probabilities:A.
1. 1 answer
2. asked by Julia T
3. 864 views
Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is
1. 2 answers
2. asked by Kieth
3. 836 views
Train A is 12 mph slower than train B. Train A travels 230miles in the same time it takes train B to travel 290 miles. Find the
1. 1 answer
2. asked by Help Me Pleeease
3. 824 views
My class and I have to write a a-z story. It can be about anything. A-Z means that each sentence has to start with each diff
1. 5 answers
2. asked by Sara
3. 818 views
The concentration of NaOH is normally in the range of 3-6 M when they peel potatoes and soak them in a solution of NaOH , remove
1. 2 answers
2. asked by Sara
3. 815 views
pierre was born in the twentieth century and will be x years old in the year x squared. In what year was pierre born
1. 1 answer
2. asked by fred
3. 759 views
What do atoms forming the two bond types have in common(an ionic and covalent bond)?
1. 1 answer
2. asked by John
3. 743 views
f'(x) < 0 if |x| < 1And apparently this means f is decreasing on (-1, 1). I don't understand this. I know f'(x) < 0 means the
1. 2 answers
2. asked by Kelly
3. 740 views
-What are the products and reactants of chemosynthesis-What substance cam be measured in the water to estimate the amount of
1. 1 answer
2. asked by Karissa
3. 733 views
Suppose the hospital pays out $300,000 in dividends. A stockholder receives $10,000. If a stockholder's tax rate on dividends is
1. 2 answers
2. asked by Lashunta Battle
3. 731 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 1 answer
2. asked by Jack
3. 728 views
The side lengths of a right triangle are each an integral number of units. If one of the legs is 13 units, what is the perimeter
1. 2 answers
2. asked by Zach
3. 726 views
What social, political, and economic changes pulled the North and the South farther apart? What was the final determining factor
1. 0 answers
2. asked by Gail
3. 720 views
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an
1. 0 answers
2. asked by Brianna
3. 706 views
Matt used 2 hundreds, 18 tens, and 4 ones to model a number. What number did matt model?
1. 1 answer
2. asked by Anonymous
3. 700 views
What is the slope of the straight line 3x - 9y = 44
1. 3 answers
2. asked by ASWAT
3. 698 views
The Office Jet printer can copy Janet's dissertation in 10 min. The Laser Jet printer can copy the same documents in 8 min. If
1. 2 answers
2. asked by Marie
3. 691 views
Thhe members of a soccer team are to share the $540 cost of a banquet. When 5 students are unable to attend the cost per student
1. 1 answer
2. asked by Steven
3. 689 views
I'm just needing a question to be ask: If you were head of health informaton management department at a hosptial later an FBI
1. 0 answers
2. asked by CC
3. 687 views
A 6 m flagpole casts a 5 m shadow at the sametime of the day as a building casts a 28m shadow. How tall is the building? I drew
1. 2 answers
2. asked by Jen
3. 678 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 1 answer
2. asked by Jack
3. 664 views
How many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees C to 85 degrees C?
1. 1 answer
2. asked by Sarah
3. 658 views
A student collects 400 mL of oxygen at 9.80 kPa. If the temperature remainsconstant, what volume would this gas occupy at 9.40
1. 2 answers
2. asked by maria
3. 643 views
The military conquest of the assyrians were made possible by theirA. powerful navy B. Efficient military organization and
1. 1 answer
2. asked by Amber
3. 635 views
Draw two parallel lines on your paper. Locate four points on the paper each an equal distance from both lines. Describe the
1. 3 answers
2. asked by lori
3. 630 views
Thanks for your last corrections. Can you check these sentences too?1)Particular attention is paid to the analysis ad
1. 1 answer
2. asked by Franco
3. 625 views
In chapter 3 of the book "A Long Way Gone", is Ishmael Beah actually dreaming as he goes to bed reminicing about the memories of
1. 0 answers
2. asked by AL 92
3. 614 views
I don't get this statement. "Most cases (of typhoid fever) in developed countries are imported from endemic countries."
1. 3 answers
2. asked by AL 92
3. 613 views
Calculate the volume of H2 produced at 300 K and 98.65 kPa when 48 g of Mgreacts with excess HCl according to the following
1. 1 answer
2. asked by maria
3. 605 views
Perry ages 80,tends to put lot of salt on his food even when the food has already been salted during cooking.What is the most
1. 1 answer
2. asked by vedrana
3. 600 views
Why and how could you apply critical thinking when evaluating each of the following:• Articles • Advertising • Media •
1. 1 answer
2. asked by holly
3. 593 views
how do i write these in equations to represent each situation?1. the perimeter P of a rectangle is the sum of twice the length L
1. 2 answers
2. asked by Sara!
3. 590 views
What is the coefficient of the term of degree 4 in this polynomial?4x8 + 5x4 - 2x3 + x2 - 1
1. 1 answer
2. asked by jj black
3. 590 views
what can be the best way to explain the differences between exclusion and segregation??- Thanks
1. 1 answer
2. asked by rose
3. 586 views
A ship carries exactly 10 different signal flags. If eachpossible combination and ordering of 4 of these flags connotes a
1. 0 answers
2. asked by Felicia
3. 584 views
Hi, For one part of my problem I have had to find the equation of a straight line that passes through two points, I have done
1. 0 answers
2. asked by Rich
3. 582 views
If f(x) = - 2x2 + 2x - 3, what is f(5)?
1. 1 answer
2. asked by Austin
3. 573 views
how do i write this in equation of this situationThe cost C of a telegram of 18 words is the cost F of the first 10 words plus
1. 4 answers
2. asked by Sara!
3. 570 views
Thank you for your corrections.Can you check the very last sentences of the day, please?1) The sound of the music coming from
1. 1 answer
2. asked by Franco
3. 563 views
which group believed the language of article 10 of the treaty of versailles contradicted the power of congress to declare war?
1. 2 answers
2. asked by Anonymous
3. 561 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. asked by Megan
3. 557 views
I forgot to include the following sentences. I hope you can look at them as well.8) The second theme, epiphany, describes a
1. 1 answer
2. asked by Franco
3. 556 views
can someone give me a list of 4 year colleges that teach criminology or criminal justice
1. 2 answers
2. asked by Angel
3. 552 views
Okay, my teacher showed me in class this container. It had a balloon in the shape of a hand attached to the rim of the jar and
1. 1 answer
2. asked by ~anonymous
3. 551 views
Can you check these sentences for me?Thank you in advance. 1) Eveline belongs to a collection of fifteen stories which was
1. 1 answer
2. asked by Franco
3. 539 views
Train A is 12 mph slower than train B. Train A travels 230miles in the same time it takes train B to travel 290 miles. Find the
1. 0 answers
2. asked by Marie
3. 537 views
I need help with having to write an introduction on a persuasive essay about how smoking should be outlawed
1. 4 answers
2. asked by Tena
3. 536 views
Estimate the number of personally constructed greetingcards possible at a machine if there are 12 designs, 30 messages, 18
1. 0 answers
2. asked by Felicia
3. 535 views
When do girls stop growing?Also, if a family memeber had a late growth spurt would it be more likely that their child also have
1. 0 answers
2. asked by Anonymous
3. 520 views
please explain how a large variance from budget would you consider important to address on a monthly hospital variance report:5%
1. 0 answers
2. asked by Anonymous
3. 519 views
Thank you very much for your last corrections. Can you check these sentences too?1)Particular attention is paid to the analysis
1. 1 answer
2. asked by Franco
3. 510 views
How do you find the discount ofRegular Price $38 Discount 10%
1. 2 answers
2. asked by penelope
3. 501 views
A 1m^3 object is floating in water. A third of the object is submerged. How much does the object weigh?
1. 1 answer
2. asked by Ally
3. 499 views
I am having a hard time understanding key points to write my essay on. Can I get some opinions on why it is important to speak
1. 3 answers
2. asked by Amber
3. 491 views
Factor completely3p^2q + 9p^2q^2 - 12p^2q^3 I have done the following: 3p^2q(1+3q-4q^) but then i get stuck..not sure if that's
1. 2 answers
2. asked by help
3. 482 views
Can the formal and informal organization coexist within the same organizational structure? Why or why not?
1. 1 answer
2. asked by kisha
3. 479 views

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