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Questions Asked on April 6, 2014

For the following electrochemical cellCu(s)|Cu2 (aq, 0.0155 M)||Ag (aq, 3.50 M)|Ag(s) write the net cell equation. I presume it
1. 2 answers
2. asked by Aki
3. 8,188 views
1) Which solution will have the lowest OH-A) Na2CO3 B) NaHCO3 C) NaCl D) NaHSO4 E) NH4Cl 2) Which solution will be the strongest
1. 6 answers
2. asked by Timothy
3. 5,722 views
Skeletal remains had lost 84% of the C-14 they originally contained. Determine the approximate age of the bones. (Assume the
1. 1 answer
2. asked by Vanessa
3. 5,048 views
how many ways can you choose 3 dishes from a menu of 8?my answer is 56
1. 1 answer
2. asked by steve
3. 2,270 views
When a reservoir is created by a dam,50 fish are introduced into the reservoir ,which has an estimated carrying capacity of 8000
1. 4 answers
2. asked by Dash
3. 2,174 views
1) it is found that .30 M solutions of the three shots Na3X, Na2Y and NaZ have pH's of 8.5, 7.0 and 10.5 not necessarily in
1. 1 answer
2. asked by Reggie
3. 1,990 views
1. If sec x + tan x = 3/2 and 0 ≤ x ≤ pi/2 then the value of sin x is...2. If 0 ≤ x ≤ pi/2 and tan²x + sec x = 5 then
1. 1 answer
2. asked by Patrick
3. 1,875 views
A bullet is fired horizontally with a speed of 100 m/s aiming at a target 20m away. It misses the target by??
1. 1 answer
2. asked by Anonymous
3. 1,821 views
a hammer is often used to force a nail into wood.the faster the hammer moves,the deeper the nail moves into the wood.
1. 1 answer
2. asked by kimesha
3. 1,817 views
I need help understanding oxidation I have a problem that states:The proper assignment of oxidation numbers to the elements in
1. 1 answer
2. asked by linda
3. 1,707 views
1. a) What species are present in a 3.0 M NH3 solution? b) Qualitatively, what is the pH of this solution? c) What reaction(s)
1. 3 answers
2. asked by Anonymous.
3. 1,643 views
A radioactive substance decays according to the formulaQ(t) = Q0e−kt where Q(t) denotes the amount of the substance present at
1. 1 answer
2. asked by Vanessa
3. 1,627 views
I need a chart plan that will help me win Ghana national lottery.
1. 9 answers
2. asked by Quayson Nyamiah Alex
3. 1,623 views
An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is 18% copper. How much (to the nearest tenth lb.) of the
1. 1 answer
2. asked by justin
3. 1,548 views
what is the degree of the polynomial4x-2+5x^2?
1. 2 answers
2. asked by Alice HELP HELP
3. 1,454 views
Assume a binomial probability distribution has p = .60 and n = 200.a)What are the mean and standard deviation (to 2 decimals)?
1. 1 answer
2. asked by Vanessa
3. 1,429 views
Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals).P(z -1.0) P(z -1.0) P(z
1. 1 answer
2. asked by Vanessa
3. 1,400 views
The following questions refer to the following acids and bases.A) Hydrazoic acid HN3 Ka = 1.9 x 10^-5 B) Hydrofluoric acid HF Ka
1. 3 answers
2. asked by Zachary
3. 1,342 views
Write the net ionic equation for the reaction between...(and MUST INCLUDE STATES, please post answers to all so i can verify if
1. 1 answer
2. asked by NEED HELP PLEASE!!!
3. 1,218 views
13. Why can convex mirrors only produce virtual images?Sadly, I can't find this answer in my book. :( Any help would be
1. 1 answer
2. asked by Alex
3. 1,121 views
A brass ring of diameter 10.00 cm at 22.2°C is heated and slipped over an aluminum rod of diameter 10.01 cm at 22.2°C. Assume
1. 1 answer
2. asked by niti
3. 1,111 views
Who am I? I have 2 in the ten thousands and the units place. The rest of my digits are 0.
1. 1 answer
2. asked by Arnesh
3. 1,042 views
Please Help....A hard-boiled egg at 98℃ is placed in a sink of 18℃ water to cool. After 5 minutes, the eggs temperature is
1. 1 answer
2. asked by Raven
3. 1,026 views
work breakdown structure deliverables are ignored and replaced with activities or tasks that have been grouped in phasesTrue or
1. 1 answer
2. asked by Patti
3. 1,010 views
Maria and Charlie can deliver 50 papers in 2 hours. How long would it take them to deliver 35 papers? formula please
1. 2 answers
2. asked by jorge
3. 983 views
The percentage of a certain brand of computer chips that will fail after t years of use is estimated to beP(t) = 100(1 −
1. 1 answer
2. asked by Vanessa
3. 977 views
The surface area of a prism is 54 square inches. What is the surface area of a similar prism that is smaller by a scale of 1/3?M
1. 1 answer
2. asked by Unknown
3. 973 views
A hypothesis is an educated guess and as such must have the following characteristics:1) can be proved or disproved 2) is based
1. 1 answer
2. asked by Indigo
3. 960 views
In cat, the gene for black coat is dominant to the gene for white coat. A heterozygous black cat is crossed with a white cat.
1. 3 answers
2. asked by Didi
3. 949 views
I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs
1. 6 answers
2. asked by Anonymous
3. 920 views
A rectangular piece of cardboard 9" x 12" is made into an open box by cutting a 2 1/2" square from each corner and bending up
1. 5 answers
2. asked by thomas
3. 896 views
Write the net ionic equation for the reaction between potassium hydroxide and copper(I) nitrate.
1. 1 answer
2. asked by Michael
3. 886 views
How much energy is required to change a 40 g ice cube from ice at -25°C to steam at 105°C?Answer in J.
1. 0 answers
2. asked by Renee
3. 883 views
During a flu epidemic, the number of children in the Woodbridge Community School System who contracted influenza after t days
1. 0 answers
2. asked by Vanessa
3. 835 views
A 50 foot ladder is placed against a building so that it touches a point 40 feet above the ground. The distances ( in feet )
1. 3 answers
2. asked by thomas
3. 790 views
1. Develop hypotheses predicting the efficiency of solar energy from direct sunlight against the 4 variables tested?
1. 2 answers
2. asked by debie
3. 784 views
A series RLC circuit is made with a C=100pF capacitor, an L=100μH inductor, and an R=30Ω resistor. The circuit is driven at
1. 3 answers
2. asked by roger
3. 782 views
.An angle is 10° more than the measure of its complement. Find the number of degrees in each angle.The angles measure _
1. 3 answers
2. asked by justin
3. 781 views
You are about to leave for vacation, but you forgot your socks! You go back to your room but lights are out, can't see. You
1. 1 answer
2. asked by Laney
3. 773 views
Phosphorus-32 (P-32) has a half-life of 14.2 days. If 200 g of this substance are present initially, find the amount Q(t)
1. 0 answers
2. asked by Vanessa
3. 765 views
A lightning bolt may carry a current of 1.00 ✕ 104 A for a short time interval. What is the resulting magnetic field 134 m
1. 1 answer
2. asked by Chris
3. 753 views
A procedure in regression analysis where Predictor or Independent Variables are coded as 1 or 0 (representing categories) and
1. 1 answer
2. asked by C
3. 749 views
1. For the following research question, specify the parameter and give the null and alternative hypotheses. "Is there a
1. 2 answers
2. asked by A
3. 747 views
My question is ..can anyone explain how to do problem #2? I feel lost. :( And could you also explain why? Problem#1, is that a
1. 1 answer
2. asked by Lynn
3. 745 views
The growth rate of Escherichia coli, a common bacterium found in the human intestine, is proportional to its size. Under ideal
1. 0 answers
2. asked by Vanessa
3. 738 views
Who is the narrator of The Open Boat?A) The oiler B) The captain C) The correspondent D) The cook I think it's the
1. 1 answer
2. asked by Isabella
3. 733 views
Which expression is a polynomial????A: 11 0ver the square root of x B: square root of 11 times x C: x - square root 11 D: 11
1. 1 answer
2. asked by Amber
3. 727 views
Method for getting correct answer? Thank you!The reaction below is an endothermic reaction. What would one have to do to shift
1. 2 answers
2. asked by Chemistry
3. 719 views
I don't really understand these questions and their processes. And I am a bit iffy on redox reactions. For problem 3, can you
1. 1 answer
2. asked by Mika
3. 715 views
Jennifer figures that she uses 2 pens per month. She started the year with 10 pens. How do I write the equation that represents
1. 1 answer
2. asked by Colb
3. 705 views
The following questions refer to the following system:A total of 30.0 mL of a .10M solution of a monophonic acid (Ka = 1.0 x 10
1. 1 answer
2. asked by Charlie
3. 702 views
Collina’s Italian Café in Houston, Texas, advertises that carryout orders take about 25 minutes (Collina’s website,
1. 0 answers
2. asked by Vanessa
3. 691 views
a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of
1. 1 answer
2. asked by nina
3. 684 views
Bob buys a house for 150,000 with a mortgage rate of 5.8% convertible monthly. At the time ofpurchase he owns a 10,000 20-year
1. 1 answer
2. asked by John
3. 677 views
A uniform AB 2m long Rod which exerts a downwards force of 60N at its centre is placed on a knife egde support position 0.8m
1. 1 answer
2. asked by mwazzy
3. 673 views
What is the sum of the first 60 positive integers?
1. 1 answer
2. asked by kathy
3. 664 views
A series RLC circuit is made with a C=100pF capacitor, an L=100μH inductor, and an R=30Ω resistor. The circuit is driven at
1. 2 answers
2. asked by roger
3. 659 views
Alex's favorite restaurant is a buffet-style Chinese restaurant downtown. Each time he goes, he chooses 2 appetizers and 1
1. 1 answer
2. asked by Tom
3. 653 views
Square miles 66, 000 and 1, 000, 000 people.Population density is a rate that is indicates how crowed and area is. A proportion
1. 1 answer
2. asked by Alice Urgent
3. 648 views
What higher education institution were established to assist blacks during reconstruction?is it college?
1. 1 answer
2. asked by anonymous
3. 641 views
Three positive numbers form an increasing G.P. If the middle term in this G.P. Is doubled , the new numbers are in A.P. Then the
1. 1 answer
2. asked by sagar tiwari
3. 640 views
Method for how to get answer? Thank you!For the equilibrium reaction below. To what is Kc equal? N2(g) + 3H2(g) ↔ 2NH3(g) a.
1. 1 answer
2. asked by Chemistry
3. 636 views
How do you think southern whites reacted to president Andrew Johnson’s plan?President Johnson’s Plan (10%+)  Offered
1. 1 answer
2. asked by anonymous
3. 625 views
I have to write a essay about the confederation of Canada in 1867 and why it was a good choice. I have all of my body paragraphs
1. 4 answers
2. asked by Anonymous
3. 625 views
Method for getting correct answer for this? Thank you! A mixture containing an initial concentration of 0.1877 M for H2 and
1. 1 answer
2. asked by Chemistry
3. 621 views
To what temperature would the reaction below need to be heated to have a rate constant of 8.474e-4 M-1s-1 if the rate constant
1. 1 answer
2. asked by Chemistry
3. 618 views
what is the number of moles of nonvolatile nonelectrolyte dissolved in 3.5 kg of water when the solution boils at 101.86 degrees
1. 1 answer
2. asked by anonymous
3. 617 views
In the device a 50g mass is hung from a pulley and released. A disk is placed on the platform. The platform has a radius of 5cm.
1. 0 answers
2. asked by Joe
3. 609 views
2. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1? Explain
1. 1 answer
2. asked by debie
3. 608 views
what is the formula of a base area for a right trapezoidal prism?
1. 1 answer
2. asked by ali
3. 607 views
How would you start and finish these questions by a step by step process? Does Amp equal to Joules?1. How many grams of aluminum
1. 1 answer
2. asked by Erika
3. 600 views
if you have 9.50x10^25 molecules of KClO3 how many grams of KCl and O2 will you get? The balanced equation is 2KClO3 = 2KCl +
1. 1 answer
2. asked by Emma
3. 600 views
Jane has a pizza shop. She has 1 type of crust, 1 type of sauce and 6 toppings. How many 2 topping pizzas can she make. Note the
1. 1 answer
2. asked by Evan
3. 596 views
The initial concentration of PCl5 was 0.1983 M. It was allowed to decompose at some temperature until equilibrium had been
1. 1 answer
2. asked by Chemistry
3. 589 views
Two stations, A and B, are located six miles apart on a railroad. The rates of cartage of coal are 50 cents per ton per mile
1. 1 answer
2. asked by thomas
3. 588 views
Method for getting correct answer? Thank you!What is the value of Kc at 226.85 °C for the reaction below if Kp is 6.24e-3 at
1. 1 answer
2. asked by Chemistry
3. 582 views
why do fine motor skills develop slower than gross motor skills?
1. 1 answer
2. asked by Chanel
3. 581 views
Mr. Benedict left half of his estate to his wife, one-fourth to his son, one-fifth to his daughter and the remainder, $5000 to
1. 3 answers
2. asked by thomas
3. 578 views
A theory differs from a hypothesis in the following ways:Question 2 options: 1) they are proven hypotheses and are not subject
1. 1 answer
2. asked by Indigo
3. 573 views
What are ten observations made by Charles Darwin on his voyage and what are their significance?
1. 0 answers
2. asked by Zoey
3. 572 views
Method for getting correct answer for this? Thank you!For the reaction A ↔ 2B K = 3.80x10-7 , if one started with 0.154 M A
1. 1 answer
2. asked by Chemistry
3. 565 views
Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into
1. 0 answers
2. asked by roger
3. 563 views
a chord of 42 cm with the distance of 5 cm from center of the circle find the raduis of the circle?/.
1. 1 answer
2. asked by sar
3. 562 views
Method for getting correct answer? Thank you!Initially there were equilibrium concentrations of 0.1887 M A, 0.1042 M B. Which of
1. 2 answers
2. asked by Chemistry
3. 557 views
Put the following words in the correct place in these sentences.Revoke, Provoke, Invoke A. If we put something off until later,
1. 1 answer
2. asked by Anonymous
3. 553 views
Boxcar A, with a mass of 1500 kg, is travelling at 25 m/s to the east. Boxcar B has a mass of 2000 kg, and is initially at rest.
1. 1 answer
2. asked by DeAnne
3. 544 views
What are mathematical concepts are used to make string art?
1. 1 answer
2. asked by Juanita
3. 540 views
The height of a certain species of a tree are normally distributed with a mean of 30ft and stand dev of 4ft. If a random sample
1. 1 answer
2. asked by Tammy
3. 539 views
Revision of the second paragraph: "Leisure time is another one of my favorite things about summer. It brings me happiness beyond
1. 1 answer
2. asked by Anonymous
3. 533 views
Which of these phrases is correct?A 9 is a multiple of 3 and a factor of 12. B 9 is a factor of 45 and a multiple of 5. C 9 is a
1. 1 answer
2. asked by Carlotta
3. 516 views
A certain Circle of paper has x degrees cut out of it. The two cut edges are taped together, curling the paper up into a right
1. 1 answer
2. asked by diana
3. 511 views
Football is the best sport. The athletes are amazing, and it is extremely complex. (Points : 1) is it deductive or inductive
1. 2 answers
2. asked by sallie
3. 508 views
PLS HELP ME AND THANK YOU:)What is the molarity if 2.18 grams of CO(NO3)2.6H2O dissolved in 50.00ml of solution?
1. 1 answer
2. asked by may
3. 502 views
important concept that children learn by modeling other children is associated with which one of the following researchers?
1. 1 answer
2. asked by Soso
3. 501 views
How many mole of magnesium atoms are present in 0.50g of manesium (mg=24)
1. 2 answers
2. asked by Moses
3. 497 views
there are about 100,000 genes in each cell. Why would it be important scientists to identify what every one of these genes does?
1. 0 answers
2. asked by sara
3. 497 views
the gamma function r(x) is defined by r(x)= integral from 0 to infinity of x^n-1(e^-1)dx. find r(1), r(2), r(3)
1. 1 answer
2. asked by chelsea
3. 487 views
what is the molecular mass of a gas if 0.833 g of it occupies 210 mL at 106.3 kPa and 8 degrees Celsius.
1. 1 answer
2. asked by lisa
3. 485 views
What mass of N2O occupies a volume of 0.500 L at 0 degrees Celsius and 101.325 kPa?
1. 1 answer
2. asked by stella
3. 483 views
help us!!! plzzbtw this is not a question :P
1. 6 answers
2. asked by anonymous
3. 481 views

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