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Questions Asked on October 23, 2010

Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral?Al(ClO4)3-Acid
1. 1 answer
2. asked by Anonymous
3. 8,377 views
while john is traveling along an straight interstate highway, he notices that the mile marker reads 260. john travels until he
1. 3 answers
2. asked by Anonymous
3. 6,783 views
George saves 18% of his total gross weekly earnings from his 2 part-time jobs. He earns $6.25 per hour from one part-time job
1. 1 answer
2. asked by donna
3. 5,747 views
14.The marks on a statistics test are normally distributed with a mean of 62 and a variance of 225. If the instructor wishes to
1. 1 answer
2. asked by Rhea
3. 5,449 views
Mass mA rests on a smooth horizontal surface, mB hangs vertically.If m_{\rm{A}}=13.0 kg and m_{\rm{B}}=3.0 kg in the figure ,
1. 3 answers
2. asked by Anonymous
3. 4,698 views
Which has a larger radius, the oxygen atom (O) or oxygen ion (O-2) ? Explain.Isn't the ion bigger because negative ions are
1. 1 answer
2. asked by Sheryl
3. 4,604 views
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of
1. 2 answers
2. asked by Bella
3. 4,421 views
strontium nitrate reacts with potassium iodate. What is its molecular,ionic and net ionic equations?
1. 1 answer
2. asked by Stephanie
3. 4,234 views
Object 1 has a mass m1 and a velocity vector v 1 = (2.87 m/s)xhat. Object 2 has a mass m2 and a velocity vector v 2 = (3.06
1. 2 answers
2. asked by aok19
3. 3,988 views
Which of the following anions act as weak bases in solution?ClO4- ClO- C2H3O2- Cl- I think its ClO4- and Cl-
1. 1 answer
2. asked by Anonymous
3. 3,983 views
Determine whether the integral is divergent or convergent. If it is convergent, evaluate it and enter that value as your answer.
1. 2 answers
2. asked by Hannah
3. 3,388 views
for the reaction: c3h8+5o2=3co2 +4h2o how many moles of o2 will be produced in the complete combustion of 0.75 moles of c3h8?I
1. 2 answers
2. asked by Lillian
3. 3,284 views
Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and
1. 4 answers
2. asked by HELP !
3. 2,929 views
while john is traveling along an interstate highway he notices a 160-mile marker as he passes through town. later john passes
1. 3 answers
2. asked by Anonymous
3. 2,776 views
What is the molecular formula for an alkane with 12 carbon atoms? (Type your answer using the format C2H4 for C2H4.)so this
1. 1 answer
2. asked by Sarah
3. 2,332 views
I am doing a lab online and have no clue on how to get started with the following questions? Please Help me!1. Calculate and
1. 3 answers
2. asked by Melissa
3. 2,202 views
How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 2900 m?
1. 2 answers
2. asked by bill
3. 2,196 views
which of the following are predicted by the molecular orbital model to be stable diatomic species N22-, O22-, F22-
1. 2 answers
2. asked by Joseph
3. 2,174 views
The specified heat capacity of silver is 0.24 J/C.g. Please help with this Ap chem quastion.?a. Calculate the energy required to
1. 3 answers
2. asked by Nardos
3. 2,116 views
A skier goes down a slope inclined at 25 degrees. Her mass including equipment is 60.0kg.a. What is her acceleration if friction
1. 2 answers
2. asked by Adam
3. 2,095 views
Determine whether each of the following salts will form a solution that is acidic, basic, or pH-neutral?Al(ClO4)3-Acid
1. 1 answer
2. asked by Anonymous
3. 2,009 views
A crate has a mass 24 kg. What applied force is required to produce an acceleration of 3m/s^2 if the frictional force is 90 N.
1. 2 answers
2. asked by Adam
3. 1,996 views
A car travels at a constant speed around a circular track whose radius is 2.9 km. The car goes once around the track in 380 s.
1. 7 answers
2. asked by Angela
3. 1,967 views
When a person stands on tiptoe (a strenuous position), the position of the foot is as shown in Figure P8.16a. The total
1. 1 answer
2. asked by rabhimself
3. 1,920 views
Select the answer that best describes an aqueous solution made from each of the following substances:Reference: Ref 14-4 solid
1. 1 answer
2. asked by Anonymous
3. 1,756 views
Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information,
1. 2 answers
2. asked by Tahnee
3. 1,640 views
what is the probability of drawing a diamond face card on the fifth draw from a standard deck of 52 cards, knowing that the
1. 2 answers
2. asked by Anonymous
3. 1,611 views
Which of the following anions act as weak bases in solution?ClO4- ClO- C2H3O2- Cl- I think its ClO4- and Cl-
1. 2 answers
2. asked by Anonymous
3. 1,600 views
c. Use the enthalpy diagram provided above and apply Hess’s Law to determine the standard enthalpy of formation for
1. 1 answer
2. asked by Nora
3. 1,572 views
the average age of a family of six is 25 years.The average age of the four children is 15 years.If the father is 2 years older
1. 4 answers
2. asked by Iby
3. 1,552 views
A power boat of mass 465 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The
1. 2 answers
2. asked by Xavier
3. 1,489 views
A 0.130 kg baseball, traveling 35.0 m/s, strikes the catcher's mitt, which recoils 11.0 cm in bringing the ball to rest. What
1. 4 answers
2. asked by Adolfo
3. 1,389 views
Given: segment AC and segment BD bisect each other at Eprove: E is the midpoint of segment RS i don't know if you will be able
1. 0 answers
2. asked by rebekah
3. 1,331 views
Please tell me if these are right.How many grams are needed to obtain 1.5 moles of magnesium oxide? I got 60grams is this right?
1. 3 answers
2. asked by Jason
3. 1,246 views
I forgot to include the following 4 statements. I hope you can correct them, too. Thank you.1) Friendship is very important to
1. 2 answers
2. asked by Franco
3. 1,212 views
A sample consisting of 0.025 mol of a solid compound is placed inside a metal cylinder. The cylinder was immersed in a water
1. 2 answers
2. asked by Nora
3. 1,211 views
A boy sledding down a hill accelerates at 1.30 m/s2. If he started from rest, in what distance would he reach a speed of 8.00
1. 2 answers
2. asked by Anonymous
3. 1,199 views
What is a good thesis statement on the destruction of world due to food we eat for my critical analysis paper?
1. 1 answer
2. asked by Aisha
3. 1,179 views
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1 MHz =10^6 Hz}.
1. 1 answer
2. asked by risha
3. 1,171 views
Can you please check these sentences for me I'm not sure of. Thank you very much.1) My sister and I are high school students.I
1. 1 answer
2. asked by Franco
3. 1,136 views
A certain number is halved, then increased by 3. The result lies between 5 and 7.Between which two values does the number lie?
1. 2 answers
2. asked by Jannie
3. 1,126 views
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 32 m/s, the block
1. 2 answers
2. asked by Fred
3. 1,124 views
Do plants grow better with tap water or distilled water?
1. 2 answers
2. asked by Andy
3. 1,123 views
I forgot to include the following statements. I really hope you can have a look at them, too.1)I have football training twice a
1. 1 answer
2. asked by Franco
3. 1,102 views
Choose a contemporary painting, sculpture, or piece of found art that captures your interest. Consider what it is that captures
1. 5 answers
2. asked by sweet
3. 1,074 views
if k2O, SrO, and Al2O3 are all correct formulas, predict the formulas for the oxides of Rb, Mg, & Ga.i think the answers are
1. 1 answer
2. asked by Kim
3. 1,065 views
A 0.130 kg baseball, traveling 35.0 m/s, strikes the catcher's mitt, which recoils 11.0 cm in bringing the ball to rest. What
1. 2 answers
2. asked by Adolfo
3. 1,057 views
choose a benchmark of 10,50, 100, or 1,000 to estimate the number of peanuts in a large bag.
1. 1 answer
2. asked by tony
3. 1,054 views
The specified heat capacity of silver is 0.24 J/C.g. Please help with this Ap chem quastion.?a. Calculate the energy required to
1. 2 answers
2. asked by Nardos
3. 1,041 views
A person pulls a toboggan for a distance of 20.0 m along the snow with a rope directed 25.0° above the snow. The tension in the
1. 1 answer
2. asked by Xavier
3. 1,035 views
Can you help me to make a speech about 'the importance of recycling' ?
1. 1 answer
2. asked by fani
3. 1,027 views
I have to draw Atomic Model Drawings of the Reaction to H2CO3 and then show a balance check. How do I do that?
1. 0 answers
2. asked by Anonymous
3. 1,022 views
Describe three issues related to role confusion that a teacher may feel or communicate
1. 2 answers
2. asked by Sharon
3. 996 views
A brick of mass 1.0 kg slides down an ice roof inclined at 30 degrees with respect to the horizantal. If the brick starts from
1. 1 answer
2. asked by Lisa
3. 993 views
Consider a normal distribution with mean 30 and standard deviation 6. What is the probability a value selected at random from
1. 1 answer
2. asked by Anonymous
3. 968 views
Suppose that sin x = 1/5 and cos y = 2/3, and x and y are each angles in Quadrant 1. Determine sin(x+y).
1. 1 answer
2. asked by jj re
3. 938 views
I have some doubts concerning a few sentences. I really hope you can check them. Thank you very much in advance.1)I did rhythmic
1. 1 answer
2. asked by Franco
3. 931 views
A centrifuge in a medical laboratory rotates at an angular speed of 3800 rev/min. When switched off, it rotates through 46.0
1. 1 answer
2. asked by john
3. 924 views
Finding out what your boss expects of you relates to the theory of:leadership. goal setting. human relations. defense
1. 4 answers
2. asked by dina
3. 911 views
Suppose you own a stock in a company. The current price per share is $25. Another company has just announced that it wants to
1. 0 answers
2. asked by Husain
3. 887 views
there are 3 naturally occurring stable isotopes of oxygen:O-16,O-17, O-18. there are 2 naturally occurring stable isotopes of
1. 3 answers
2. asked by Navroz
3. 869 views
A man measures the acceleration of an elevator using a spring balance. He fastens the scale to the roof, and suspends a mass
1. 0 answers
2. asked by Michael
3. 868 views
For every left handed person, there are 4 right handed persons. If there are 30 students in the class predict the number of
1. 1 answer
2. asked by Kory
3. 868 views
Determine the coordinates of the point on the graph of f(x)=sqrt(2x+1) where the tangent line is perpendicular to the line
1. 1 answer
2. asked by Anonymous
3. 845 views
A child is twirling a 0.0100 kg ball on a string in a horizontal circle whose radius is 0.118 m. The ball travels once around
1. 2 answers
2. asked by Fred
3. 834 views
A 3.0 kg object, moving with a constant velocity of 3.0 m/s, is acted upon by a force of 11 N in the direction of the motion for
1. 2 answers
2. asked by Adolfo
3. 832 views
A skier is gliding along at 5.0m/s on horizontal, frictionless snow. He suddenly starts down a 13 degrees incline. His speed at
1. 1 answer
2. asked by Jennifer
3. 826 views
Here are heart rates for a sample of 30 students before and after a class break. At α = .05, wasthere a significant difference
1. 0 answers
2. asked by ping
3. 821 views
This is the Problem, I just want to get a little help on this problem.Suppose automile repair customers are billed at the rate
1. 2 answers
2. asked by Lee
3. 820 views
If the coefficient of static friction is 0.350, and the same ladder makes a 64.0° angle with respect to the horizontal, how far
1. 3 answers
2. asked by heather
3. 813 views
A firm has return on equity of 15 percent, earnings before taxes of $30,000, total asset turnover of .80, a profit margin of 4.5
1. 1 answer
2. asked by Husain
3. 813 views
Determine whether the integral is divergent or convergent. If it is convergent, evaluate it and enter that value as your answer.
1. 0 answers
2. asked by Hannah
3. 798 views
int(dx/(x^2+9)) u = x/3Use the indicated substitution (above) to evaluate the integral. Confirm answer by differentiation. Okay,
1. 1 answer
2. asked by Nikki
3. 793 views
A 4.5 104-kg space probe is traveling at a speed of 15000 m/s through deep space. Retrorockets are fired along the line of
1. 1 answer
2. asked by Xavier
3. 785 views
classify the following as discrete or continuous random variables:a) the time it takes to run a marathon- i think that it is
1. 1 answer
2. asked by mary- please check calculations.
3. 762 views
In the hostile environment form of sexual harassment, the harassed person:does not get a fair hearing for the complaint. suffers
1. 4 answers
2. asked by dina
3. 760 views
The height, h, in metres, of a ski ramp over a horizonatal distance, x, in metres, is given by h(x)=0.01x^3-0.3x^2+60 for the
1. 1 answer
2. asked by Anonymous
3. 759 views
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 150m above the
1. 0 answers
2. asked by Student
3. 755 views
for the reaction: c3h8+5o2=3co2 +4h2o how many moles of o2 will be produced in the complete combustion of 0.75 moles of c3h8?
1. 1 answer
2. asked by Lillian
3. 749 views
1. A spinner has four outcomes Three outcomes have the same probability and the fourth is half as likely.2. A spinner has three
1. 1 answer
2. asked by Alex
3. 736 views
would it be:O.2576/0.7086=0.3635 0.3635 X 87.65= actual yield? A 2.30-mL sample of methane gas (density 0.112 g/cm3) was
1. 1 answer
2. asked by gary
3. 735 views
There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a cylindrical container mounted
1. 1 answer
2. asked by Angela
3. 729 views
If a car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s2. The driver then applies the
1. 3 answers
2. asked by Bob
3. 728 views
A 1030 kg car is pulling a 360 kg trailer. Together, the car and trailer have an acceleration of 2.07 m/s2 directly forward.How
1. 2 answers
2. asked by James
3. 722 views
Two identical cars are traveling at the same speed. One is heading due east and the other due north, as the drawing show. What
1. 0 answers
2. asked by jo
3. 722 views
(a) Given that the energy released per fission of 235U nucleus is 200MeV, calculate (i) the number of fissions and (ii) the
1. 0 answers
2. asked by Akkie
3. 715 views
Compare the Kennedy Administration’s New Frontier domestic policies to that of the Johnson Administration’s Great Society
1. 2 answers
2. asked by Anonymous
3. 714 views
A force F=180 N pulls a crate at a 60 degree angle on a rough surface. The weight of the crate is 296 N and the friction force
1. 1 answer
2. asked by Lisa
3. 683 views
Groupthink is likely to occur when:anger within the group has been growing. the need arises for a group opinion. almost no
1. 2 answers
2. asked by dina
3. 674 views
group 1 cations:im doing a lab report for a experiment we did today. we had a known and we checked it for pb^+2, Hg2^+2, and
1. 3 answers
2. asked by JES
3. 674 views
The speed -time graph of a particle moving along a fixed direction is shown below.obtain the distance travelled by the particle
1. 1 answer
2. asked by soya.
3. 669 views
A sample consisting of 0.025 mol of a solid compound is placed inside a metal cylinder. The cylinder was immersed in a water
1. 1 answer
2. asked by Nora
3. 667 views
If you have 1.90 moles of H_2 How many grams of NH_3 can be produced?
1. 1 answer
2. asked by Doug
3. 653 views
A car of mass 1600 kg is traveling without slipping on a flat, curved road with a radius of curvature of 38 m. If the car's
1. 1 answer
2. asked by john
3. 652 views
8) The reactionCH3- N≡C → CH3- C≡N is a first-order reaction. At 230.3°C, k = 6.29 x 10^-4 s^- 1. If [CH3 -N≡ is 1.00 x
1. 1 answer
2. asked by JES
3. 648 views
You purchased a $1,000 five percent coupon bond that matures in 10 years.How much would your bond be worth if interest rates
1. 1 answer
2. asked by sweet
3. 647 views
Can you help me write EITHER 250-word+ paragraph or 10 lines in iambic pentameter outlining your version of a Faustian bargain?
1. 10 answers
2. asked by Twin
3. 643 views
Consider the following scenario: John buys a house for $150,000 and takes out a five year adjustable rate mortgage with a
1. 1 answer
2. asked by sweet
3. 638 views
Find a number whose square root is 24 more than 5 times the number.How do I set up this problem?
1. 1 answer
2. asked by Dylan
3. 632 views
Can someone explain what is the difference between a connotation and denotation?
1. 2 answers
2. asked by Joe
3. 627 views

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