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Questions Asked on October 9, 2011

Write the net ionic equation for the reaction that occurs when aqueous solutions of barium hydroxide and hydrobromic acid are
1. 6 answers
2. asked by Hannah
3. 14,029 views
Determine the oxidation number for the indicated element in each of the following compounds: (a) Co in LiCoO2, (b) Al in NaAlH4,
1. 2 answers
2. asked by rob
3. 13,001 views
Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs,
1. 1 answer
2. asked by rob
3. 8,195 views
Let vector B = 8.8 m, 75 degrees counterclockwise from the vertical.a) Find the x- and y-components of vector B in the normal
1. 2 answers
2. asked by Beth
3. 5,852 views
A thief uses a bag of sand to replace a gold statue that sits on a weight sensitive alarmed pedestal. The bag of sand and the
1. 1 answer
2. asked by Monique
3. 3,433 views
A train that is 1 mile long starts through a tunnel that is also 1 mile long. The train is traveling 15 miles per hour. How long
1. 3 answers
2. asked by PLEASEEEEE
3. 3,395 views
Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of
1. 2 answers
2. asked by rob
3. 3,266 views
How does Le Chatelier's principle explain the result you obtained when you added HCL to a suspension of Ca(OH)2 in water? Where
1. 1 answer
2. asked by mary
3. 2,899 views
if segment bd bisects angle abc. the measure of angle abc=7x. the measure of angle abd=3x+25 find the measure of angle dbc
1. 1 answer
2. asked by Anonymous
3. 2,815 views
Kosuke wrote a mathematics contest consistingof 25 multiple choice questions, the scoring system gave 6 points for a correct
1. 1 answer
2. asked by Nancy
3. 2,693 views
the balanced equation for the reduction of iron ore to the metal using CO is Fe2O3+3CO(g) -> 2Fe+3CO so what is the maximum of
1. 2 answers
2. asked by cheryl
3. 2,523 views
Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first
1. 2 answers
2. asked by Josh
3. 2,497 views
a cylinder with a top and bottom has a radius 2x+1 and height 2x-1 . Write a simplifed expression for itsa) surface area, SA=
1. 2 answers
2. asked by Heather
3. 2,435 views
A brick falls freely from a high scaffold.A. What is its velocity after 4.0s? B. How far does the brick fall during the first
1. 1 answer
2. asked by -Untamed-
3. 2,403 views
If you drop a golf ball, how far does it fall in 0.5s?Is the correct formula to use?: D = V1 + t + 1/2at^2. But the problem is
1. 3 answers
2. asked by -Untamed-
3. 2,356 views
two cones have radii in the ratio 5:4 and height 2:3, determine the ratio of their volumes . where V=1/3pier^2h
1. 2 answers
2. asked by Lacey
3. 2,353 views
y sin 12x = x cos 2y, (pi/2, pi/4)Find the tangent line to the curve at the given point. y=???
1. 2 answers
2. asked by John
3. 2,310 views
A 2 kg ball of putty moving to the right at 3m/s has a head-on inelastic collision with a 1 kg ball of putty moving to the left
1. 1 answer
2. asked by Nikki
3. 2,227 views
A string is tied to a 4.4 kg block and a 120 g hanging bucket. students add 20 g washers one at a time to the bucket. the
1. 1 answer
2. asked by Luis
3. 2,014 views
Ture or false questions: Your teacher gives a true-false pop quiz with 10 questions.Show that the number of possible outcomes
1. 1 answer
2. asked by mary
3. 1,962 views
A lake may be polluted with Pb2+ ions. what precipitation reaction might you use to test for the presense of Pb2+?
1. 1 answer
2. asked by Josh
3. 1,931 views
An infinitely long line charge of uniform linear charge density λ = -3.00 µC/m lies parallel to the y axis at x = -2.00 m. A
1. 2 answers
2. asked by Paul
3. 1,878 views
Which one of the following would be considered a fixed cost of operating a motor vehicle?A.Insurance premiums B.Gasoline C.Tune
1. 5 answers
2. asked by ciara
3. 1,815 views
an electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350 N amd the box
1. 1 answer
2. asked by marr
3. 1,698 views
Joe keeps all his socks in one drawer. He has 7 blue socks and 9 brown socks. If he reaches in the drawer without looking, what
1. 2 answers
2. asked by Maria
3. 1,670 views
A rolling ball moves from x1 = 3.2 cm to x2 = -4.4 cm during the time from t1 = 3.4 sec to t2 = 6.2 sec.What is its average
1. 2 answers
2. asked by celine
3. 1,597 views
WHAT ARE A FEW EXAMPLES OF A TRIANGULAR SEQUENCE PATTERN IN REAL LIFE? PLEASE ANSWER AS SOON AS POSSIBLE!
1. 2 answers
2. asked by Howler
3. 1,597 views
The deli special lunch offers a choice of three different sandwiches, four kinds of salads, and five different desserts. Use the
1. 2 answers
2. asked by Brandon
3. 1,589 views
A solution of ammonia and water contains 2.70×1025 water molecules and 7.60×1024 ammonia molecules. How many total hydrogen
1. 2 answers
2. asked by Anonymous
3. 1,578 views
Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward
1. 3 answers
2. asked by Mar
3. 1,557 views
Ray Hf bisects with angle Ehg.. Which conclusion is not valida. E,F and G are coplanar b. angle EHF is congruent with angle FHG
1. 2 answers
2. asked by Jocelyn
3. 1,542 views
Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞.f(x) = { 2 - x if x ≤ 3 {
1. 1 answer
2. asked by Blue
3. 1,527 views
vector (V1) is 6.3 units long and points along the negative (X) axis. Vector(V2) is 9.0 units long and points at 55 degree to
1. 1 answer
2. asked by july
3. 1,524 views
Assuming the sample is pure sodium sulfate, how many mL of 5% BaCl2.2H20 solution would be required to precipitate the sulfate.
1. 1 answer
2. asked by Mika
3. 1,512 views
John bought a shirt on sale for 25% off the original price and another 25 % off the discounted price. If the final price was
1. 2 answers
2. asked by Cris
3. 1,482 views
If performing a gravimetric sulfate experiment and you use ordinary filter paper instead of ashless filter paper, would results
1. 1 answer
2. asked by Kenji
3. 1,479 views
The equation of the line that goes through the point ( 3 ,5 ) and is parallel to the line 2 x + 4 y = 2 can be written in the
1. 2 answers
2. asked by Amy
3. 1,467 views
Keno is a casino game in which the player has a card with the numbers 1 through 80 on it. The player selects a set of k numbers
1. 1 answer
2. asked by M
3. 1,455 views
What is 18 over 52 as a decimal rounded to the nearest thousandth
1. 1 answer
2. asked by Aaron
3. 1,454 views
A road has an incline of 10°. To the nearest foot, find the increase in altitude of a car after driving 4,000 feet along the
1. 3 answers
2. asked by Mikee
3. 1,358 views
a man weighs 573 n on earth. what would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s 2nd power? the
1. 2 answers
2. asked by mikael
3. 1,326 views
Let vector A = 4i^ + 4j^, vector B = -2i^ - 5j^, and vector F = vector A - 5(vector B).a) Write vector F in component form.
1. 0 answers
2. asked by Sara
3. 1,311 views
I am writing this essay about Shirley Jackson's "The lottery"My essay is supposed to be about i think i want to talk about
1. 2 answers
2. asked by Jessica
3. 1,301 views
The market in which the assumption of continuous market clearing seems to be LEAST applicable is the:a. stock market b. market
1. 2 answers
2. asked by Anonymous
3. 1,293 views
the perimeter of a rectangle is 56 inches> the width of the rectangle is three-fourth of the length. Find the length of the
1. 5 answers
2. asked by Paula
3. 1,288 views
Why is it possible for Kp to be less than Kc? If this is the case then when Kc>1 it favors products, but if Kp <1 than how can
1. 7 answers
2. asked by Jane
3. 1,284 views
A solution of 220mL of 0.200M Koh is mixed with a solution of 120mL of 0.240M NiSO4.1.Determine limiting reactant? 2.Calculate
1. 1 answer
2. asked by anonymous
3. 1,200 views
An aqueous solution of copper (I) chloride is 15.7% by mass copper (I) chloride. Copper (I) is 35.8% by mass chlorine. If the
1. 0 answers
2. asked by Mom
3. 1,186 views
A convenience store sells 1650 items where 12/25 of the items are junk food. How many of the items are junk food?
1. 6 answers
2. asked by Alex L.
3. 1,184 views
Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward
1. 1 answer
2. asked by Mar
3. 1,154 views
sodium sulfide, Na2S, is used in the leather industry to remove hair from hides. The Na2SO4 + 4C -> Na2S +4CO(g) so suppose you
1. 2 answers
2. asked by cheryl
3. 1,140 views
What major problem did the Roman Empire face in the mid to late Fourth Century?A. Immigration and invasion B. Lack of Education
1. 1 answer
2. asked by Angel
3. 1,109 views
Compare and contrast state and local programs as they contribute to successful reintegration and transition services for women
1. 0 answers
2. asked by Kay
3. 1,101 views
Define the following terms and identify their role in finance:1. Finance 2. Efficient Market 3. Primary Market 4. Secondary
1. 1 answer
2. asked by Anonymous
3. 1,084 views
Cannon-Bard view emotion as more than a response to physiological arousal. They suggest that...1) the hippocampus and the spinal
1. 1 answer
2. asked by vedrana
3. 1,083 views
An aqueous solution of copper (I) chloride is 15.7% by mass copper (I) chloride. Copper (I) is 35.8% by mass chlorine. If the
1. 1 answer
2. asked by Mom
3. 1,071 views
What is the Lewis dot structure for Carbon tetrabromide and what is the geometric shape of the molecule?
1. 1 answer
2. asked by Jill
3. 1,061 views
Write the balanced equation for:Magnesium nitride + water -> magnesium hydroxide + ammonia MgNO2 + H2O -> MgOH + NH3 Is this
1. 3 answers
2. asked by Hannah
3. 1,055 views
Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of
1. 1 answer
2. asked by rob
3. 1,044 views
We are working withdirect object pronouns and we had to answer these questions with the use of the direct object pronoun.It's a
1. 1 answer
2. asked by James C.
3. 1,037 views
A solution of 220mL of 0.200M Koh is mixed with a solution of 120mL of 0.240M NiSO4.1.Determine limiting reactant? 2.Calculate
1. 1 answer
2. asked by anonymous
3. 1,035 views
Jessica can jog to work in 4/5 of an hour. When she rides her bike, it takes her 3/10 of an hour. If she rides 10 miles per hour
1. 1 answer
2. asked by Lisana
3. 1,035 views
You are driving home from school steadily at 95 km/h for 130 km. It then begins to rain and you slow to 60 km/h. You arrive home
1. 1 answer
2. asked by marline
3. 1,025 views
why is this a poor model for hitting a baseball?y = -0.002x^2 + 0.879x + 3.981 I know it gets hit at approx. 4 feet high. The -a
1. 1 answer
2. asked by Jennifer
3. 997 views
how high a building can superman jump over if he is to leave the ground with a velocity of 60 m/s at an angle of 75 degrees
1. 2 answers
2. asked by Anonymous
3. 976 views
The systems shown below are in equilibrium (with m = 3.60 kg and θ = 33.0°). If the spring scales are calibrated in newtons,
1. 0 answers
2. asked by Anonymous
3. 976 views
Find the length of one base of a trapezoid if the area is 126 inches squared, the height is 7 inches and the length of the other
1. 1 answer
2. asked by Anonymous
3. 886 views
Suppose that contamination particle size in micrometers can be modeled as f(x) = 2x−3 for 1 < x. a. Show that f(x) is a
1. 1 answer
2. asked by latha
3. 883 views
If jan drove 7 hrs. at 72 miles per hr.and drove 4 hrs. at 68 miles per hr. How many hrs she drive for last 3 hrs.
1. 2 answers
2. asked by Liz
3. 881 views
find the derivative of (x^2+1) 3rd root of x^2+2
1. 1 answer
2. asked by vicki
3. 873 views
a tower standing on level ground is due north of piont N and due west of point W, a distance 1,500 feet from N. If the angles of
1. 1 answer
2. asked by courtney
3. 870 views
Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞.f(x) = { 2 - x if x ≤ 3 {
1. 0 answers
2. asked by Chris
3. 867 views
A train that is 1 mile long starts through a tunnel that is also 1 mile long. The train is traveling 15 miles per hour. How long
1. 1 answer
2. asked by Micka
3. 857 views
A descent vehicle landing on the moon hasa vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it
1. 1 answer
2. asked by Louis
3. 850 views
3) Which of the following statements is true concerning home equity loans?A. Home equity loans are generally installment loans
1. 1 answer
2. asked by Anonymous
3. 849 views
what element behaves as tghe oxidizing agent in the following equation and what element behaves as the reducing agent? sn2+ +
1. 1 answer
2. asked by Anonymous
3. 837 views
The voltaic cell:Pt, H2(g, 1 atm), H+(xM),,H+ (1M), H2(g, 1 atm), Pt registers an Ecell=+0.108 V. What is the pH of the soln? I
1. 0 answers
2. asked by Holly
3. 828 views
an electric motor is used to pull a 125 kg box across a floor using a long cable. the tension in the cable is 350 N amd the box
1. 2 answers
2. asked by marr
3. 815 views
What is the traverling ball in Hanbball
1. 1 answer
2. asked by Anonymous
3. 811 views
Two workers pull horizontally on a heavy box, but one pulls twice as hard as the other. The larger pull is directed at 25.0 west
1. 1 answer
2. asked by moneera
3. 797 views
Monthly Budget: You earn $250 per month from your part-time job. You are in a kayaking club that costs $20 per month, and you
1. 1 answer
2. asked by Stefanie
3. 795 views
A quantity of electrical charge that brings about the deposition of 4.5 g Al from Al3+ at a cathode will also produce what
1. 1 answer
2. asked by Holly
3. 780 views
How did geography affect the trade patterns of Africa and Asia during the period of time covered in the chapter?
1. 0 answers
2. asked by buck
3. 778 views
Of the four river valleys that supported major early civilizations, which one lost one of it's major rivers?A. Yellow River B.
1. 1 answer
2. asked by Angel
3. 774 views
For the overall population, the IQ scores follow the normal distribution with mean equal to 100 and variance equal to 225. What
1. 1 answer
2. asked by Anonymous
3. 772 views
Urn I and urn II each have two red chips and two white chips. Two chips are drawn simultaneously form each urn. Let X1 be the
1. 0 answers
2. asked by Pat
3. 758 views
Light is incident on a glass-air interface from the glass side(n=1.5), and researchers want to use the evanescent field on the
1. 0 answers
2. asked by Vanda
3. 752 views
compare how europeans treated the different native population
1. 1 answer
2. asked by katherine
3. 750 views
Two blocks with mass m1 = 7.2 and m2 = 7.7 are connected by a massless string over a frictionless and massless pulley. The angle
1. 4 answers
2. asked by Jessica
3. 749 views
Bob:Thank you for answering my Chemistry question. I apologize that it was on there twice. I accidentally posted again the same
1. 0 answers
2. asked by Mom
3. 742 views
if segment bd bisects angle abc. the measure of angle abc=7x. the measure of angle abd=3x+25 find the measure of angle dbc
1. 1 answer
2. asked by Anonymous
3. 741 views
Could someone show me how to solve these two problems-I have 10 of each kind to do this weekend and I'm really lost1. Find
1. 3 answers
2. asked by Tammie
3. 738 views
How does Le Chatelier's principle explain the result you obtained when you added HCL to a suspension of Ca(OH)2 in water?
1. 1 answer
2. asked by mary
3. 735 views
Problem 25.52A 100-turn, 2.0-cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60 degrees away from
1. 1 answer
2. asked by Paige
3. 731 views
A bicyclist of mass 60 (including the bicycle) can coast down a 9.0 hill at a steady speed of because of air resistance.Part A
1. 0 answers
2. asked by Diamond
3. 726 views
My topic is community and I have to form a paragraph from the 10 activity plans such as math, science literacy, dramatic play,
1. 7 answers
2. asked by Maryann
3. 723 views
A homogenous mixture of metals is called an alloy. An alloy is found to be 30% by volume gold with the rest being aluminum.
1. 1 answer
2. asked by Mom
3. 702 views
Disability insurance is designed to replace:A.Damageed property B.loss or damage to property C.money damages awarded in a law
1. 3 answers
2. asked by ciara
3. 701 views
A piece of metal alloy (a solution of metals) is made of gold and silver. It is 20% by mass silver. An irregularly shaped piece
1. 1 answer
2. asked by Mom
3. 691 views
When 0.076 moles of lead(II) nitrate are dis-solved in enough water to make 670 mililiters of solution, what is the molar
1. 3 answers
2. asked by Lutesia
3. 690 views

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