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Questions Asked on February 21, 2013

In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like
1. 11 answers
2. asked by Cassie
3. 7,009 views
A solution contains 2 mEq/ml of KCL (Molecular weight 74.5). If a 20 ml ampule of this solution is diluted to 1 liter what is
1. 2 answers
2. asked by Ann
3. 6,061 views
at what distance would repulisve force between two electrons have a magnitude of 2.00 n between two protons ?2=kq1q2/r^2 r^2 =
1. 2 answers
2. asked by yan
3. 5,143 views
the concentration of urea (MW=60.0g/mol) in a soltuion prepared by dissolving 16g of urea in 39g of H2O is ____ molal
1. 3 answers
2. asked by nat
3. 4,815 views
A parking lot contains a total of 52 cars and motorcycles. There are a total of 186 tires (not counting spare tires) in the lot.
1. 1 answer
2. asked by Kim
3. 4,470 views
Rank these to highest pH to lowest pH:NH3, KOH, Ca(OH)2, HBr, HBrO I put these in the same order for highest pH to lowest but
1. 10 answers
2. asked by Anon
3. 4,127 views
What is the ionic equation for (NH4)2CO3=2NH3+CO2+H2O
1. 2 answers
2. asked by Kerry
3. 4,106 views
what is an equation of a parobola with the given vertex and focus?vertex(5,4) and focus(8,4) Can someone show me the steps to
1. 6 answers
2. asked by lee
3. 3,833 views
A college freshman must take a science course, a humanities course, an elective course, and a mathematics course for the first
1. 2 answers
2. asked by Therese
3. 3,770 views
jellyfish are classified as stinging-cell animals because they have aa. hollow body b. segmented body c. shell d. round body is
1. 4 answers
2. asked by Please&ThankYou
3. 3,720 views
8. Neither of the glasses _________ full of juice.were weren't *was wasn't 9. In the living room _________ many interesting
1. 3 answers
2. asked by Mohammed
3. 3,621 views
if 125g of magnesium sulfate heptahydrate is completely dehydrated, how many grams of anhydrous salt will remain?i would really
1. 2 answers
2. asked by rose
3. 3,603 views
A 2.50g sample of a hydrate of calcium nitrate was heated, and only 1.70g of the anhydrous salt remained. what is the formula of
1. 2 answers
2. asked by rose
3. 3,518 views
A sample of liquid consisting of only C,H and O and having a mass of 0.5438g was burned in pure oxygen and 1.039g of CO2 and
1. 2 answers
2. asked by rose
3. 3,514 views
What are the coordinates of the vertex of the graph of the function y = –3x² –12x + 3?A.(–2, 29) B.(2, –15) C.(2, –9)
1. 2 answers
2. asked by Cassie
3. 3,284 views
Fe3+ + I1- �¨ Fe2+ + I21. Balance the equation 2. Which element is being oxidized? 3. Which element is the reducing agent?
1. 2 answers
2. asked by Ellie
3. 3,056 views
is farmer a common noun or a proper noun
1. 4 answers
2. asked by nicol
3. 2,981 views
a Negative Charge of -6.0 x 10^-6 C exerts an attractive force of 65 N on a second charge 0.050 m away. What is the magnitude on
1. 2 answers
2. asked by Tadeija
3. 2,847 views
In the short story The Weapon by Fredric Brown, why did Dr. Graham says as his reason for continuing to work on the weapon,
1. 2 answers
2. asked by bethany
3. 2,838 views
Can you help me with the following sentences?1-2. Although Jenny chose the songs from her __ that she knew best, she wasn't
1. 5 answers
2. asked by lisa
3. 2,779 views
When a square of area 4 is dilated by a scale factor of k, we obtain a square of area 9. Find the sum of all possible values of
1. 5 answers
2. asked by Knights
3. 2,702 views
What are the coordinates of the vertex of the graph of the function y = –x² + 6x –11?A.(3, –2) B.(3, 16) C.(–3, –29)
1. 2 answers
2. asked by Cassie
3. 2,517 views
The molal boiling-point constant for water is 0.51 degrees C/molal. The boiling point of a 1.00 molal solution of Ca(NO3)2
1. 1 answer
2. asked by Marcus
3. 2,513 views
Add punctuation to the following excerpt.Writing under the name of Diedrich Knickerbocker Washington Irving aimed his potent
1. 2 answers
2. asked by kolina
3. 2,491 views
The oxygen gas emitted from an aquatic plant during photosynthesis is collected over water at a temperature of 25 degrees
1. 1 answer
2. asked by Katie
3. 2,483 views
For your 21st birthday, your grandfather offers you a gift of $1000 today.However, you have the choice of waiting 3 years and
1. 1 answer
2. asked by nutz77
3. 2,368 views
Find the change in the force of gravity between two planets when the masses of both planets are doubled, but the distance
1. 1 answer
2. asked by Anonymous
3. 2,351 views
Use differentials to approximate the quantity (give answer to 4 decimal places)4th root of 256.6.
1. 2 answers
2. asked by Jacob
3. 2,251 views
If calcium carbide has a standard enthalpy of formation of -59.8 kJ/mol and acetylene has a standard enthalpy of formation of
1. 1 answer
2. asked by Kelly
3. 2,240 views
a point charge of -4.00nc is the origin, and a second point charge of +6.00nc is on the x axis at x=0.800m. Find the magnitude
1. 5 answers
2. asked by yan
3. 2,203 views
in a marathon, Hamish had to run a total distance of 11/12 mile. he ran 4/5 of the distance. how many miles did he run?
1. 7 answers
2. asked by Shohanur
3. 2,156 views
rename each of the following using the distributive property of multiplication over addition so that there are no parentheses in
1. 1 answer
2. asked by Anonymous
3. 2,049 views
An Italian food restaurant claims that with the choices of toppings that they offer on their pizzas, you can order about 65,550
1. 1 answer
2. asked by Kim
3. 2,040 views
what is the volume of a 3.00M solution made with 122g of LiF
1. 2 answers
2. asked by mia
3. 2,032 views
Fill in the blank1-2. Although Jenny chose the songs from her __ that she knew best, she wasn't complacent about being prepared.
1. 5 answers
2. asked by lisa
3. 1,972 views
A projectile is fired from the origin (at y = 0 m) as shown in the diagram. The initial velocity components are V0x = 310 m/s
1. 2 answers
2. asked by Anonymous
3. 1,968 views
This is a chemistry lab report, but I was wondering if someone could edit the grammar and look at the sentence structure, etc.I
1. 4 answers
2. asked by a Canadian
3. 1,951 views
Find the future value of $800 deposited at 5% for 2 years if the account pays simple interest, and the account pays interest
1. 2 answers
2. asked by Muffin
3. 1,918 views
A man has a mass of 80.0kg is standing on the surface of the earth.(a)calculate the magnitude of the attractive force that the
1. 3 answers
2. asked by lebo
3. 1,850 views
The perimeter of a regular octagon is p. write an expression that represents the length of one side of the octagon?
1. 12 answers
2. asked by andrew
3. 1,803 views
a 5.00g sample of a hydrate of barium chloride was heated, and only 4.30g of the anhydrous salt remained. what is the formula of
1. 2 answers
2. asked by rose
3. 1,770 views
Members of a school boosters club want to sell at least 10 school jackets and at least 21 caps during a
1. 3 answers
2. asked by T-perry
3. 1,765 views
2. AllElectronics caries 1000 products, P1, … P1000. Consider customers Ada, Bob, and Cathy such that Ada and Bob purchase
1. 2 answers
2. asked by Edward
3. 1,676 views
Name 2 elements that would have properties similar to Beryllium with atomic weight higher than 130.
1. 2 answers
2. asked by teacher1
3. 1,650 views
A college student decides that school work limits him to a total of no more than 36 hours per week at his two
1. 3 answers
2. asked by T-perry
3. 1,575 views
Express sin4xcos3x as a sum or differences of sines and cosines
1. 1 answer
2. asked by Fabian onyango ndege
3. 1,569 views
Which equation represents the axis of symmetry of the function y = –2x² + 4x –6? (1 point)y = 1 x = 1 x = 3 x = –3
1. 11 answers
2. asked by Minnie
3. 1,563 views
Use the Laws of logarithms to rewrite the expression ln(x^3 sqrt(y^4/z^10))in a form with no logarithm of a product, quotient or
1. 1 answer
2. asked by Rachel
3. 1,532 views
A non-conducting ring of radius R with a uniform charge density λ and a total charge Q is lying in the yz - plane, as shown in
1. 1 answer
2. asked by Anonymous
3. 1,517 views
Two resistances, R1 and R2, are connected in series across a 15-V battery. The current increases by 0.050 A when R2 is removed,
1. 1 answer
2. asked by Elizabeth
3. 1,504 views
How many elements are in glucose sugar, C6H12O6? How did you recognize them?a. How many total atoms are there in this equation?
1. 5 answers
2. asked by teacher1
3. 1,494 views
Ron used 3/5 pound of flour to bake bread and 2/7 pound of flour to bake scones. how many more flour did he use to bake bread
1. 8 answers
2. asked by Shohanur
3. 1,467 views
In selecting an ace, king, queen, and jack from an ordinary deck of 52 cards, how many ways can you choose if the cards must be
1. 1 answer
2. asked by Therese
3. 1,461 views
show that:2^5 cos^2a sin^4a=cos6a-2cos4a- cos2a + 2
1. 2 answers
2. asked by Anonymous
3. 1,457 views
Ben deposits $5000 now into an account that earns 7.5 percent interest compounded annually. He then deposits $1000 per year at
1. 2 answers
2. asked by manny
3. 1,444 views
a 4.00 kg block rests on a 30.0 incline. If the coefficient of static friction between the block and the incline is 0.700, what
1. 1 answer
2. asked by Marek Blizinski
3. 1,433 views
For each of the following equilibria, use Le Chatelier's principle to predict the direction of reaction when the volume is
1. 3 answers
2. asked by Hannah
3. 1,420 views
If the diameter of a circle is 5 in., what is the radius?What is the relationship of the diameter of a circle to radius?
1. 3 answers
2. asked by Tim
3. 1,418 views
what is a word that is in the ip family that means a baby bird.I have no clue need help
1. 2 answers
2. asked by ray
3. 1,400 views
the force required to maintain an object at a constant velocity in free space is eaqual to?
1. 1 answer
2. asked by john
3. 1,340 views
A bridge is the shape of an arc of a circle. The bridge is 8 feet tall and 36 feet wide. What is the radius of the circle that
1. 3 answers
2. asked by Isabel
3. 1,338 views
Your question: "The shorter diagonal of a rhombus is 50 mm long. Each of its obtuse angles measures 140. Find the length of each
1. 1 answer
2. asked by allen
3. 1,317 views
Balanced reaction for cyclohexene to adipic acid. Used na2wo4 with h2o2, PTC, and khso4.
1. 2 answers
2. asked by Chris
3. 1,304 views
tylers 14 foot ladder makes a 62 degree angle with the ground.To the nearest foot, how far up the house does tylers ladder
1. 1 answer
2. asked by victoria
3. 1,293 views
When an acid reacts with a metal such as zinc, whats released? Where does the product come from? I answered: a gas hydrogen is
1. 2 answers
2. asked by Jessie
3. 1,281 views
The graph of 5x-2y=10 intersects the x-axis and y-axis what are the order pairs for these two points of intersection?A.(2,0) and
1. 3 answers
2. asked by Angie
3. 1,280 views
Which is true when a negative nuber is subtracted from a positve number?A.the difference is always 0 B.the difference is always
1. 4 answers
2. asked by Angie
3. 1,261 views
A cylindrical aluminum pipe of length 1.52 m has an inner radius of 2.20 10-3 m and an outer radius of 3.00 10-3 m. The interior
1. 0 answers
2. asked by Elizabeth
3. 1,251 views
Write a paragraph naming three possible agendas and one example of each that you might find in the media.
1. 2 answers
2. asked by leslie
3. 1,238 views
A car traveling along the highway needs a certain amount of force exerted on it to stop. More stopping force may be required
1. 1 answer
2. asked by john
3. 1,212 views
Select the correct answer.The change in length of a steel wire under an applied load can be halved by keeping all other
1. 1 answer
2. asked by dmkp
3. 1,204 views
The cost of 4 scarves and 6 hats is $52. The cost of two hats is $1 more than the cost of one scarf. What are the costs of one
1. 3 answers
2. asked by Jane
3. 1,180 views
So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We
1. 2 answers
2. asked by Anonymous
3. 1,175 views
I am supposed to find the infinitive phrases in sentences, then name them as subjects, direct objects, predicate nominatives,
1. 3 answers
2. asked by not good at grammar
3. 1,173 views
What is the lewis dot structure for copper?
1. 0 answers
2. asked by Valerie
3. 1,152 views
A point charge Q1=−2 μC is located at x=0, and a point charge Q2=+8 μC is placed at x=−0.5 m on the x-axis of a cartesian
1. 6 answers
2. asked by Anonymous
3. 1,151 views
The eggplant ave. bus passes max's house every 8 mins. the cabb creek bus passes it every 12 mins. the last they passed by
1. 5 answers
2. asked by George
3. 1,126 views
A 100 L reaction container is charged with 0.724 mol of NOBr, which decomposes at a certain temperature** (say between 100 and
1. 3 answers
2. asked by Anonymous
3. 1,116 views
Why is jazz considered to be "American" music?
1. 2 answers
2. asked by justastudent
3. 1,113 views
what is the formula for the sodium sulfate if 3.54g of dry solid remain after 8.50g of hydrate are heated??
1. 2 answers
2. asked by rose
3. 1,097 views
"The heat engine uses 1.00x10^-2 mol of a diatomic gas as the working substance. Determine the temperatures at the 3 points."Fro
1. 0 answers
2. asked by Summer
3. 1,095 views
Can you find a canadian case where the defence of mental disorder is used in late 2012 ti early 2013? I searched
1. 3 answers
2. asked by Lori
3. 1,083 views
Who invented Java?
1. 1 answer
2. asked by Bob
3. 1,076 views
what is so special about the elements in Group 8 on the Periodic table?
1. 3 answers
2. asked by teacher1
3. 1,073 views
Solve for a and b in y=ab^x.
1. 1 answer
2. asked by Anonymous
3. 1,070 views
Strategy How much more money do 10 t-shirts cost than 6 t-shirts.T-Shirts Cost 1 $8 3 $24 5 $40
1. 1 answer
2. asked by Quan
3. 1,065 views
Assume the Earth's magnetic field is 51.3 µT northward at 60.0° below the horizontal in a particular city. A tube in a neon
1. 0 answers
2. asked by Matteo
3. 1,049 views
On what values of x does the graph off(x) = 2x^3 - 3x^2 + 12x + 87 have a horizontal tangent?
1. 1 answer
2. asked by Gary
3. 1,031 views
Nancy lives in a subdivision where the streets are laid out in a grid pattern. Her school is six blocks south and four blocks
1. 1 answer
2. asked by Maame
3. 1,030 views
The mass of 42 books is 8,4 kg.what is the mass of 12 of these books.give me an answer in a written ratio
1. 1 answer
2. asked by bamogopa
3. 1,029 views
Describe the life style disease behaviour and explain 5 factors that constribe to the disease
1. 1 answer
2. asked by Tumelo
3. 1,026 views
For the reaction I2(g) + Br2(g) 2 IBr(g), Kc = 280. at 150.°C. Suppose that 0.570 mol IBr in a 2.50-L flask is allowed to reach
1. 6 answers
2. asked by Hannah
3. 1,016 views
The English civil war affected the american colonies in which of the following ways:a.) With england convulsed in civil war, the
1. 1 answer
2. asked by MIKE
3. 1,010 views
a sailboarder is zipping northeast across the river wit ha velocity of 10 m/s relative to the water the river current is moving
1. 1 answer
2. asked by Anonymous
3. 1,007 views
What kind of clause is the phrase in CAPS?Is that the girl WHOSE FATHER WORKS AT A GARAGE? Any help is appreciated -MC2
1. 4 answers
2. asked by mysterychicken2
3. 1,005 views
A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional force fk between boat and
1. 0 answers
2. asked by Rachel
3. 1,000 views
I am doing a literary research paper on Romeo and Juliet. I don't know a topic. Any suggestions???
1. 4 answers
2. asked by Gabby
3. 998 views
The Lab experiment we did today was to analyze an antacid tablets to determine the actual content of NaHCO3.Suppose I dropped
1. 3 answers
2. asked by John
3. 998 views
How many atoms are in Zinc Chloride, ZnCl2?
1. 2 answers
2. asked by teacher1
3. 989 views
How else can you get ninety hundredths?
1. 1 answer
2. asked by Maria
3. 987 views

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