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Questions Asked on October 3, 2010

I balanced the equation:HBr(aq) +NH3(aq)->NH4Br I need to find the ionic equation and the net ionic equation
1. 4 answers
2. asked by KELLY
3. 15,438 views
A stream is 30. meters wide and its current flows southward at 1.5 meters per second. A toy boat is launched with a velocity of
1. 2 answers
2. asked by elana
3. 9,391 views
In what situations would sampling work best for estimating population size, in what situations would mark and recapture work
1. 8 answers
2. asked by Quentin
3. 7,925 views
creer deber escribir recibir tener vivirTOMÁS: ¿Dónde , Diana? DIANA: Yo con mi tía aquí en D.F. pero mi familia en
1. 1 answer
2. asked by Christopher
3. 4,170 views
A soccer player kicka a ball with an initial velocity of 10 meters per second at an angle of 30 degress above the horizontal.
1. 2 answers
2. asked by elana
3. 4,116 views
A nickel has a mass of 5.000 grams and is composed of 25% nickel and 75% copper. What is the mass of copper in the nickel? How
1. 2 answers
2. asked by Sarah
3. 3,943 views
You have 100 mL of a solution of benzoic acid in water; the amount of benzoic acid in the solution is estimated to be about 0.30
1. 3 answers
2. asked by Camille
3. 3,551 views
What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth
1. 5 answers
2. asked by Eden
3. 2,708 views
To analyze for barium in an unknown white powder, an excess of sodium sulfate solution was added to a 0.576 g sample of the
1. 3 answers
2. asked by amber
3. 2,421 views
A coin is placed 17.0 from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly
1. 5 answers
2. asked by Karlee
3. 2,386 views
whats the net ionic equation for the following reactionAgNo3(aq)+Na2SO4(aq) answer 2Ag+(aq)+SO42- (aq)___> Ag2So4(s) correct?
1. 2 answers
2. asked by amber
3. 2,377 views
What happens when magnesium is added to Maleic and Fumaric acid? What gas is released from this reaction? I was also wondering
1. 3 answers
2. asked by Sean
3. 2,169 views
A spider has 8 legs. An ant has 6 legs. There are a group of spiders and a group of ants. The groups have equal numbers of legs.
1. 9 answers
2. asked by peyton
3. 2,161 views
Of people who died in the US in recent years, 86% were white, 12% were black, and 2% were Asian. (This ignores a small number of
1. 1 answer
2. asked by Becky
3. 2,082 views
what are the oxidation numbers for each element in the compound NaClO4?
1. 1 answer
2. asked by Renee
3. 2,046 views
Solve 3cos2x - 7cosx = 0, when 0<=x<=360And also, find the exact values for x when 0<=x<=360 if 3tan^2x=1 Thankyou!
1. 3 answers
2. asked by Rose
3. 1,951 views
To stop a car, you require first a certain reaction time to begin braking. Then the car slows under the constant braking
1. 4 answers
2. asked by Bob
3. 1,901 views
A bottle with a volume of 190 U. S. fluid gallons is filled at the rate of 1.8 g/min. (Water has a density of 1000 kg/m3, and 1
1. 1 answer
2. asked by monnie
3. 1,865 views
Determine whether each of the following is a valid probability distribution.a) X: 0, 2, 2, 3 P(x): .1, .3, .4, .1 b) X: 5, -6,
1. 1 answer
2. asked by Rhea
3. 1,834 views
Speech in the Virginia Convention by Patrick Henry.3a. What measures does Henry say the colonists have already tried in their
1. 8 answers
2. asked by Mr.English
3. 1,718 views
The perimeter of a triangle is 76 centimeter. The second side is twice as long as the frist side. The thrid side is four
1. 4 answers
2. asked by SWEETS
3. 1,702 views
Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error.a) a
1. 2 answers
2. asked by Jordyn
3. 1,651 views
Conjecture:The sum of the first 30 odd whole numbers is? Conjecture: The sum of the first 30 even numbers is?
1. 11 answers
2. asked by Skylar
3. 1,592 views
Speech in the Virginia Convention by Patrick Henry2a. what does henry say about the previous speakers? 2b What does he hope to
1. 1 answer
2. asked by Mr.English
3. 1,584 views
mo bisects angle lmn,m angle lmn = 6x-20, m angle lmo= x+32 find m angle nmo but how if i don't know what lmn is
1. 1 answer
2. asked by eric
3. 1,442 views
Describe and correct the error in writing the number 81,700,000 in scientific notation.Standard form 81,700,000 product form
1. 2 answers
2. asked by Anonymous
3. 1,388 views
Redox titrations are used to determine the amounts of oxidizing and reducing agents in solution. For example, a solution of
1. 1 answer
2. asked by Ellen
3. 1,379 views
At her wedding, Jennifer lines up all the single females in a straight line away from her in preparation for the tossing of the
1. 1 answer
2. asked by john
3. 1,372 views
Determine the coordinates of the point of intersection of the two perpendicular lines that intersect on the y-axis and are both
1. 3 answers
2. asked by c
3. 1,336 views
Name the property that justifies each step.[(2 * 100) + (3 * 10)]+ [(1 * 100) + (5 * 10)] = (2 * 100) + [(3 * 10)+ (1 * 100)] +
1. 0 answers
2. asked by m
3. 1,334 views
Calculate the molality of ethanol in a solution of water, if the mole fraction of ethanol is0.300.
1. 6 answers
2. asked by DrChem
3. 1,326 views
• Write five sentences about the role of education in successful financial planning, in which you correctly use a different
1. 3 answers
2. asked by Rene
3. 1,321 views
An airplane flies at 200.0 km/h relative to the air. What is the velocity of the plane relative to the ground if it flies during
1. 3 answers
2. asked by Melissa
3. 1,305 views
From the poem "The Wanderer"What is the plight of the wanderer "earth-walker"? How did he become what he is and what is he
1. 2 answers
2. asked by english
3. 1,279 views
A small weather rocket weighs 15.5 N. The rocket is carried up by the balloon. The rocket is released from the balloon and
1. 3 answers
2. asked by devon
3. 1,273 views
the lowest temperature on a winter morning was -9f later that same day the temperature reached a high of 24 by how many degrees
1. 2 answers
2. asked by kiki
3. 1,273 views
If a car is accelerating downhill under a net force of 3674, what additional force would cause the car to have a constant
1. 1 answer
2. asked by Les
3. 1,256 views
8 over 13 to a decimal number rounded to the nearest hundredth
1. 3 answers
2. asked by sam
3. 1,245 views
How can naphthalene be separayed from a mixture of KBr and Sand?How can you separate NiCO3 from NaCO3 in detail? How can you
1. 1 answer
2. asked by brittanee
3. 1,238 views
I have a few doubts regarding the use of the present perfect. I really hope you can have a look at them, too.Thank you!! 1) How
1. 1 answer
2. asked by Franco
3. 1,238 views
I know that Divergent margins, also known as rifting or spreading centers, happen when two plates move away from one another.
1. 4 answers
2. asked by Lynn
3. 1,233 views
The amplitude of a system moving in simple harmonic motion is doubled. Determine by what factor does period changesince
1. 1 answer
2. asked by flame
3. 1,215 views
A bottle with a volume of 190 U. S. fluid gallons is filled at the rate of 1.8 g/min. (Water has a density of 1000 kg/m3, and 1
1. 1 answer
2. asked by monnie
3. 1,207 views
2. Given a firm’s demand function, P = 24 - 0.5Q and the average cost function, AC = Q2 – 8Q + 36 + 3/Q, calculate the level
1. 0 answers
2. asked by Bhupendra
3. 1,184 views
A volume of 50.0 mL of aqueous potassium hydroxide was titrated against a standard solution of sulfuric acid. What was the
1. 1 answer
2. asked by Ellen
3. 1,161 views
Find the area of the curve y = 1/(x^3) from x = 1 to x = t and evaluate it for t = 10, 100, and 1000. Then find the the total
1. 3 answers
2. asked by Alyssa
3. 1,156 views
Sodium hydroxide is used extensively in acid-base titrations because it is a strong inexpensive base. A sodium hydroxide
1. 2 answers
2. asked by KELLY
3. 1,139 views
An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
1. 2 answers
2. asked by Catherine
3. 1,137 views
three vectos are shown in fig. 3-32. their magnitudes are given in arbitrary units. Determine the sum of the three vectors. Give
1. 3 answers
2. asked by R
3. 1,129 views
What would the molarity of 50 mL of 3% hydrogen peroxide be if it's volume/volume? I know how to do weight/volume but not this,
1. 1 answer
2. asked by Anonymous
3. 1,045 views
If a whole bunch of lines(no two parallel, no 3 concurrent) intersects in a plane 2926 times, how many lines are a whole bunch?
1. 1 answer
2. asked by Skylar
3. 1,020 views
Calculate the volume of 1.80 M \rm Na_3PO_4 in milliliters that contains 6.00 g of solute.
1. 1 answer
2. asked by Jeff
3. 1,002 views
A block is projected up a frictionless inclined plane with initial speed v1 = 3.40 m/s. The angle of incline is è = 31.1°.(a)
1. 1 answer
2. asked by ashley
3. 995 views
I really need to know if the rephrasing is correct. As I'm not a native speaker, I need to consider all the possible
1. 1 answer
2. asked by Franco
3. 986 views
if a motorcycle accelerates from rest through the 400 m in 10 sec flat. What is its acceleration?
1. 3 answers
2. asked by jill
3. 946 views
Multiplying Polynomials - please assist I have the following answer - but am sure It is wrong -(3c^2d-d^3+1)8cd^2 =
1. 1 answer
2. asked by maryk
3. 938 views
Media Disk, Inc. duplicates over a million 3.5” floppy disks each year by copying masters to stacks of blank disks. The
1. 1 answer
2. asked by Anonymous
3. 935 views
What z-value corresponds to the 18th percentile?
1. 1 answer
2. asked by Lori
3. 926 views
In the Minister's Black Veil by Nathaniel Hawthrone.What reasons does Hooper give for not wanting to remove his veil? I came up
1. 5 answers
2. asked by Amy~
3. 922 views
Researchers have found that a gecko's foot is covered with hundreds of thousands of small hairs (setae) that allow it to walk up
1. 3 answers
2. asked by Kelli
3. 904 views
A dart gun is fired while being held horizontally at a height of 1.00 m above ground level and while it is at rest relative to
1. 0 answers
2. asked by ben
3. 902 views
I need help identifying verb tanses. I have to write 5 sentences about the " role education plays in successful financial
1. 1 answer
2. asked by kelly
3. 900 views
Oxalic acid (H2C2O4) can be used to remove rust according to the following balanced equation:Fe2O3 + 6H2C2O4 --> 2Fe(C2O4)33-
1. 2 answers
2. asked by amber
3. 898 views
Your team has been hired by ABC company’s senior management to conduct a research project. The company has 40 employees and
1. 0 answers
2. asked by Jeff
3. 882 views
moussawi ltd's outstanding bonds have a $1000 par value, and they mature in 5 years. their yield to maturity is 9%, based on
1. 1 answer
2. asked by Anonymous
3. 877 views
draw scatterplots one for which the pearson correlation coefficient is r=-1and r=1 Stuck on how to get started
1. 1 answer
2. asked by noell
3. 877 views
Advice on my Tennis Ball Launcher...That Shoots 90 MetersIt can't rely on anything explosive, combustion, or electricity
1. 0 answers
2. asked by Nathan
3. 876 views
IS this sentence a fallacy? If so what type?If you start out with a bottle of beer a day and then go to a glass or two of wine
1. 3 answers
2. asked by Tara
3. 875 views
write the balanced net ionic equation for this reactionBa(OH)2+HCL-->
1. 1 answer
2. asked by amber
3. 870 views
Speech in the Virginia Convention by Patrick Henry.4a. What course of action does Henry want the colonists to take? 4b What is
1. 3 answers
2. asked by Mr.English
3. 850 views
A 83.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is(a) accelerating upward with
1. 1 answer
2. asked by Xavier
3. 850 views
if $1747.56 is including HST, what is that price without the HST?
1. 1 answer
2. asked by martha
3. 847 views
In the Speech in the Virgina Convention by Patrick Henry,1. If you had been in the audience, how would you have responded to
1. 3 answers
2. asked by Mr.English
3. 844 views
two blocks are connected over a pulley. The mass of block A is 10 kg and the coefficient of kinetic friction between A and the
1. 1 answer
2. asked by ashley
3. 821 views
An elf has a staircase with 10 steps to climb. Each step it takes can cover either one stair or two stairs. In how many ways can
1. 1 answer
2. asked by jenny
3. 812 views
In cost in millions of dollars to remove x% of pollution is a lake modeled by C=5,000 over 200-2x.(a) What is the cost to remove
1. 1 answer
2. asked by Al
3. 807 views
You are given solutions of HCl and NaOH and must determine their concentrations. You use 38 mL of NaOH to titrate 100 mL of HCl
1. 1 answer
2. asked by KELLY
3. 802 views
My Project is a Cell CityFor Example, my city is McDonald's, so the Nucleus is The ordering desk, the Mitochondria is the
1. 3 answers
2. asked by Rixy
3. 800 views
If I throw a tennis ball straight up in the air at the same time my friend throws one straight down at the same height-initial
1. 1 answer
2. asked by Aubrey
3. 799 views
This is an essay. The tiltle was introduce myself. I decided to make it in the sahpe of a diary entry. what do you guys think.
1. 10 answers
2. asked by Matteo
3. 783 views
I can't think of a word to describe the reaction from the townspeople?Their gossiping about the Rev... Suprised... I'm stuck -A
1. 7 answers
2. asked by Amy~
3. 778 views
What is the minimum amount of 5.0M H2So4 necessary to produce 24.1g of H2(g) according to the following reaction? 2Al(s)
1. 2 answers
2. asked by Anonymous
3. 770 views
Compare and contrast the British and American conduct of the Revolutionary War. How did each side propose to win, how realisttic
1. 1 answer
2. asked by Lindsey
3. 767 views
8.3 grams of NaCl and 3 grams of KBr were dissolved in 47 mL of water. What is the mole fraction of KBr in the solution?I know
1. 7 answers
2. asked by Chem is try
3. 759 views
I'm writing an essay on the topic " The most memorable moment in your life" and I was wondering if you guy could give me
1. 4 answers
2. asked by Shadow
3. 751 views
Design a flowchart for the separation of a mixture that contains toluic acid, p-bromo-aniline, and anthracene. Whenever a
1. 0 answers
2. asked by Jessica
3. 740 views
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius
1. 5 answers
2. asked by Karlee
3. 732 views
In defining the sizes of orbitals, why must we use an arbitrary value, such as 90 percent of the probability of finding an
1. 0 answers
2. asked by Joseph
3. 728 views
I'm doing a research essay about "anchor babies", or in other words, babies born from illegal immigrants.How would you write a
1. 16 answers
2. asked by Melissa
3. 713 views
Determine bond length and bond strength?The picture of the problem is shown here: oi52[insert dot]tinypic[insert
1. 0 answers
2. asked by Lauren
3. 704 views
An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
1. 2 answers
2. asked by Catherine
3. 702 views
At a time when mining asteroids has become feasible, astronauts have connected a line between their 3760-kg space tug and a
1. 1 answer
2. asked by Xavier
3. 687 views
the specific heat capacity of seawater is 3900 j/kg degrees celcius. how much energy is needed to heat 500g of seawater from 20
1. 1 answer
2. asked by freddie
3. 686 views
Thank you very much for heping me. Here are some more alternatives I'd like you to check.1) Kurtz is said to be a brilliant
1. 3 answers
2. asked by Franco
3. 685 views
cpu company currently pays a divdend of $2.50. dividends are expected to increase at the rate of $.25 per share for the next
1. 1 answer
2. asked by gina
3. 684 views
Use de Broglie's relationship to determine the wavelength of carbon atom moving at 2.3 x 10^5 m/s.(Hint: First determine the
1. 2 answers
2. asked by Jessica
3. 676 views
Suppose that a firm is currently employing 30 workers, the only variable input, at a wage rate of $60. The average product of
1. 1 answer
2. asked by stacey
3. 676 views
A cart has a constant acceleration of a = 2m/s2. At a certain instant its speed is 5 m/s. What is its speed 2 s later and 2 s
1. 1 answer
2. asked by Jay
3. 671 views
An airplane has a mass of 33500 kg and takes off under the influence of a constant net force of 41500 N. What is the net force
1. 0 answers
2. asked by gabe
3. 648 views
Hello!I need to analyse fiction text in integrated text analysys. I`m not a native English speaker, therefore; i don't really
1. 3 answers
2. asked by Anete
3. 647 views

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