# Mona

Most popular questions and responses by Mona-
## chem

what is the balanced equation for aqueous zinc chloride and aqueous sodium chromate? Is it, ZnCl2+NaCrO4-->ZnCrO4+NaCl2 and how do I know if it is reactive or not?

*asked on October 11, 2015* -
## chemistry

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Plaese help!!!!!

*asked on November 13, 2013* -
## math

Mary and Peter had a total of Rs 480.After Peter spent Rs 20, he had 3 times as much as Mary.How much did Mary have?

*asked on December 9, 2012* -
## Chemistry 104

A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?

*asked on May 8, 2014* -
## chem

Consider the reaction: CO(g)+Cl2(g)⇌COCl2(g) Keq= 2.9×1010 at 25 ∘C A 5.89 −L flask containing an equilibrium reaction mixture has [CO]= 1.9×10−6 M and [Cl2]= 9.3×10−7 M . How much COCl2 in grams is in the equilibrium mixture?

*asked on June 5, 2016* -
## chemistry

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

*asked on November 13, 2013* -
## Geometry-8th gr

Can you please help me with this question? 1.) Given: triangle ABC ~ triangle XYZ, m

*asked on January 31, 2013* -
## Physics

A boy 12.0 m above the ground in a tree throws a ball for his dog, who is standing right below the tree and starts running the instant the ball is thrown. If the boy throws the ball horizontally at 8.50 m/s, (a) how fast must the dog run to catch the ball

*asked on February 13, 2018* -
## Programming in Python

A customer in a store is purchasing five items. Design a program in python that asks for the price of each item, and then displays the subtotal of the sale, the amount of the sales tax , and the total. Assume the sales tax is 6 percent.

*asked on September 7, 2012* -
## chemistry

How many grams of sodium chloride are needed to prepare 250 mL of a 2% solution?

*asked on March 9, 2011* -
## chemistry

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

*asked on November 14, 2013* -
## Maths

Two poles 13m and 18m high stand upright on a playground if their feet are 12m apart find the distance between their tops

*asked on November 5, 2014* -
## moral science

UNSCRABLE THESE WORD..ineisfsirdne; htotvulfhgrsen

*asked on December 10, 2014* -
## Math

The perimeter of a rectangle is 46m. If the width were doubled and the length were increased by 12m, the perimeter would be 82m. What are the length and width of the rectangle?

*asked on July 24, 2011* -
## chemistry

Consider a mixture of , albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture? Leave the dialyzing bag in

*asked on October 16, 2013* -
## chemistry

Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag? Check all that apply. NaCl solution albumin solution starch solution

*asked on October 17, 2013* -
## chemistry

How would you prepare 2.25L of a 3.00M solution from a 15.0M stock solution?

*asked on October 18, 2013* -
## calculus 1

At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 21 knots and ship B is sailing north at 18 knots. How fast (in knots) is the distance between the ships changing at 5 PM? (Note: 1 knot is a speed of 1 nautical mile per

*asked on March 25, 2010* -
## physics

An RV travels 45 km east and stays the night at a KOA. The next day it travels for 3 hours to the north, traveling 110 km. What is the displacement over the two days for the RV? Please help, thank you!

*asked on August 29, 2012* -
## Geometry

In the triangle, angles ABC and ADE are right angles. If AC = 35, AE = 11, and BE = 10, then what is AD?

*asked on March 29, 2015* -
## chemistry

Referring to the following reaction: Pb(NO3)2 (aq) + Na2SO4 (aq) -->PbSO4 (s) + 2NaNO3 (aq) A solution of 0.114 M Pb(NO3)2 with a volume 10.6 mL is added to 12.4 mL of a solution of 0.105 M Na2SO4. Calculate the number of grams of PbSO4 that will form. I

*asked on May 6, 2015* -
## physics

A body is projected vertically upwards with a speed of 40 m/s.Find the distance travelled by body in last second of upward journey?(g=9.8m/s2 neglect effect of air resistance)

*asked on May 30, 2014* -
## science

A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to è(t)= (1.20rad/s)t +

*asked on June 9, 2014* -
## Chemistry 104

The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 11.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.

*asked on May 8, 2014* -
## fine art

How are the elements of art used in the artwork titled "winged genie fertilizing a date tree?"

*asked on April 9, 2015* -
## Math

Ethan's quiz average in spelling for the past 7 quizzes is 93. How many total points does he have for the 7 quizzes?

*asked on September 19, 2017* -
## Algebra

x -1 -1 -2 -2 y 0 -1 2 3Part A: Does the table represent a relation that is a function? Justify your answer by using the values shown in the table. (4 points) Part B: The function f(h) shown below represents the number of tennis matches Diana won each

*asked on May 6, 2014* -
## math

A car that weighs 15,000 N is initially moving at 60 km/hr when the brakes are applied. The car is brought to a stop in 30 m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force

*asked on February 7, 2018* -
## physics

A roller coaster reaches the top of the steepest hill with a speed of 3.0 . It then descends the hill, which is at an average angle of 36 and is 50.0 long. Estimate its speed when it reaches the bottom. Assume friction coefficint Mk=0.18.

*asked on March 15, 2012* -
## epidemiology

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is

*asked on May 21, 2011* -
## Calculus

I don't understand how to get q for this problem? The next steps for the problem, you just need to plug q in, but I'm not sure what to do? Do you set revenues equal to expenses? Problem: Revenue is given by R(q) = 750q and cost is given by C(q) = 6000 +

*asked on November 10, 2016* -
## chemistry

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.

*asked on November 12, 2013* -
## Grade 2 english

What is the hidden word in the letters below:- aeeilnnstv Thanks

*asked on February 16, 2010* -
## Statistics

A 10 question test is all multiple choice. Each question has four choices. Determine the mean number of questions answered correctly as well as the standard deviation for the number of correct answers if someone were to guess on all ten questions. So far,

*asked on March 27, 2016* -
## mrr high school

Find the power of human heart ,which beats72 times per minute , if it does 1.5J of work every beat.

*asked on January 2, 2015* -
## chemistry

If the thyroid test requires 3.2mCi in an "atomic cocktail," how many milliliters are used to prepare the iodine-131 solution?

*asked on November 1, 2013* -
## penn foster

what should you do if you find a bone or foreign matter in your food after you've already put it in you mouth?

*asked on March 13, 2010* -
## english

what is the prefix for dismayed.

*asked on October 28, 2009* -
## chemistry

Which term has the same numerical value for the forward reaction as it has for the reverse reaction, but with opposite sign? a. ^E ( delta E) b. Ea1 c. Ea’ d. Ea2

*asked on December 13, 2014* -
## epidemiology

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is

*asked on May 20, 2011* -
## quantitative maths

in a race A beats B by 100m. the ratio of their speeds is 5:4 . what is the length of the racecourse?

*asked on December 7, 2014* -
## calculus 1

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 19 knots. How fast (in knots) is the distance between the ships changing at 3 PM? (Note: 1 knot is a speed of 1 nautical mile per

*asked on March 25, 2010* -
## science(chemistry)

Using condensed electron configurations and Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce. 1) K and P

*asked on November 13, 2009* -
## dynamics of catering

john is a caterer who encourages his staff to make suggestion on work procedures and frequently incorporates their thoughts into his management program. what kind of management style does john exhibit?

*asked on March 13, 2010* -
## Science

improper functioning or regulations of which of the following might lead to poor regulation of membrane permeability? albumin, fibrinogen, platelets, lymphocytes, chloride ion levels

*asked on July 22, 2008* -
## aps rk puram .math

Q=if a three 3 digit units digit tense digit hundreds digit are in the ratio 1:2:3.if the difference of original number and the number obtained by reversing the digit is 594.find the no.

*asked on September 15, 2016* -
## Math

The right triangle has an angle of 53 degrees. The opposite side is 6.4cm long. What is the adjacent ?

*asked on May 26, 2016* -
## math

Jay is going to cover his kitchen floor with tiles that are each 1 square foot. The floor is shape in a rectangle that is 4 feet wide and 9 feet long. How many tiles are needed to cover the floor.

*asked on March 23, 2016* -
## Geometry-8th gr

IF 3a =2b and 4b=9c, find the ratio of a to c in simplest form and show steps.

*asked on January 31, 2013* -
## math

Eight-twentieths of a ton is how many hundredths of a ton?

*asked on July 13, 2010* -
## GRADE 5 -MATHS

USE MENTAL MATH TO ADD OR SUBSTRACT: USING COMPATIBLE NUMBERS 1. 80+79+20 2. 308+95+5 3. 480+255+20 4.365+289 5. 523-198 6. 537+180 7. 325+239+75 8. 87+38+62 9. 4500-280

*asked on September 21, 2009* -
## French

It is customary to greet someone on the street with "allo." Is this true or false? Please help! Connections Academy

*asked on April 11, 2018* -
## Geometry-8th gr

Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x-4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.

*asked on February 1, 2013* -
## Geometry-8th gr

The perimeter of triangle ABC is 120. LIne segment BD bisects

*asked on February 1, 2013* -
## social studies

How is the physical geography of northern Europe connected to the economies of northern Europe?

*asked on January 26, 2012* -
## englis 3

my garden is full of water, because of yesterday"s rain.

*asked on October 25, 2010* -
## Physics

a transverse wave on a string has a period of 0.1 s and an amplitude of 1 cm. What is the maximum transverse acceleration at any point along the string?

*asked on November 15, 2016* -
## Calculus

log (base 3) x^2 = 2log(base 3)4-4log(base 3)5 And I need to solve for x.

*asked on July 6, 2015* -
## History

How did imperialism in Africa and Asia, and the value of the U.S. exports in 1870-1920 increasing support a policy of the Open Door?

*asked on August 14, 2014* -
## Geometry-8th gr

The geometric mean x of two numbers is the positive value of x that satisfies the proportion a/x =x/b, where a and b are given. Find the geometric mean of 16 and 9.

*asked on January 31, 2013* -
## physics

1. If m1= 3kg and m2= 2kg then find acceleration and tension action on the system. 2. A batsman deflects a ball by an angle 45 degree without changing its initial speed which is equal to 54km/hr.What is the impulse imparted to the bal.(mass of the ball is

*asked on August 14, 2012* -
## Algebra

solve the amount of money (in cents) of x quarters and (x+6) dimes the value of a quarter is 25 cents and a value of a dime is 10 cents

*asked on November 29, 2011* -
## ALGEBRA- MATH

Avery paid $168 for a cell phone. What was the original price of the phone if he got it at a 30% discount?

*asked on November 1, 2011* -
## math

Find the area of each circle and round to the nearest tenth. radius= 3 and two thirds

*asked on March 7, 2011* -
## math

Find the distance around and the area of each figure. Round to the nearest tenth. quarter circle: 5 inches

*asked on March 7, 2011* -
## math

Area of a trampoline is 201.1 square feet. The safety padding around the jumping surface is 1 foot wide. What is the area of the jumping surface?

*asked on March 7, 2011* -
## 2nd grade english

What is the hidden word in these letters. tiningtesre Thanks.

*asked on March 8, 2010* -
## Grade2 eng

What is the hidden word in these alphabets? abbceeru Thanks

*asked on February 8, 2010* -
## GRADE 5 MATH

USE MENTAL MATH TO ADD OR SUBSTRACT: 1. 80+79+20 2. 308+95+5 3. 480+255+20 4.365+289 5. 523-198 6. 537+180 7. 325+239+75 8. 87+38+62 9. 4500-280

*asked on September 21, 2009* -
## ALGEBRA

I need help with two problems to finish my assignment. #1 The length of a rectangle is fixed at 29cm. What widths will make the perimeter greater than 86 cm? If I could get the equation for this I would be able to figure it. I saw this one posted and no

*asked on May 3, 2009* -
## English

What's the conflict in the poem of A voice by pat mora?

*asked on March 3, 2016* -
## Is this right?

Between 1857 and 1903, the United States acquired many new territorial possessions around the globe. Why do you think so many of these new possessions were islands located in the Pacific Ocean? So that they could stop their ships there and refuel them.

*asked on August 14, 2014* -
## science

Draw a free body diagram to show the relationship of forces on a 200 kg boulder resting on a 15degree incline. Include the magnitude of the force applied by an aadvark as it holds the boulder in place.

*asked on May 3, 2012* -
## Math

Determine a relationship between the x- and y- values in the equation {(0,1), (1,0), (2, -1), (3, -2)}. Write an equation......y=?

*asked on March 20, 2012* -
## social studies

If you had to move to a Northern European country, how would you decide which country you would move to?

*asked on January 26, 2012* -
## statistics

Suppose a random sample of 36 is selected from a population with a standard deviation of 12. If the sample mean is 98, the 99% confidence interval to estimate the population mean is

*asked on April 25, 2011* -
## Math

if x = 10 what is 3x² - x + 14 ?

*asked on April 12, 2011* -
## number patterns

mrs brander has 30 tomato plants .she wants to plant the same number of plants in each row of her garden.explain how she could decide the number of rows to plant

*asked on October 20, 2010* -
## number patterns

joshua is raising fruit flies for a science project.at the begining of the first day,he had 4 fruit flies,his fruit flies double in number each day.how many fruit flies does he have at the end of three days

*asked on October 20, 2010* -
## math

three-fourhs of a gallon is how many eighths of a gallon?

*asked on July 13, 2010* -
## math

one thousand three hundred twenty feet are what part of a mile. Since there are 5,280 feet in a mile the answer will be 1/4 of a mile. how would you set this up in a fraction?

*asked on July 13, 2010* -
## 5th grade maths

Choose a reasonable metric unit to complete each sentence and how did you do it. 1. 1 mile is about 1.6---- 2. 1 yard is about 1------ Thanks

*asked on May 3, 2010* -
## Advanced physics

A child on a swing is traveling at 2 m/s as she passes through the lowest part of swing’s arc. What is the period of the motion?

*asked on November 13, 2016* -
## Physics 30

A system containing a frictionless pulley is described in the diagram on the right (the 2.0 kg box is on the floor while the 3.0 kg box is 0.5m high) . If this system is released, what will be the momentum of: A. the 2.0 kg box when the 3.0 kg box hits the

*asked on January 23, 2016* -
## Physics 30

A system containing a frictionless pulley is described in the diagram on the right (the 2.0 kg box is on the floor while the 3.0 kg box is 0.5m high) . If this system is released, what will be the momentum of: A. the 2.0 kg box when the 3.0 kg box hits the

*asked on January 23, 2016* -
## Maths

a box contains 3 black balls , 7 white balls and 5 red balls . one ball is lost . the probability that a red ball is drawn is 2/7 . The colour of the lost ball is

*asked on July 14, 2015* -
## Geometry

Points F, E, and D are on the sides line AB, line AC, and line BC, respectively, of right triangle ABC such that AFDE is a square. If AB = 12 and AC = 8, then what is AF?

*asked on March 29, 2015* -
## math

Evaluate. 8 • [5 + (18 – 7)] ÷ 4

*asked on September 8, 2014* -
## TIme zones

1. If its 12 noon in Greenwich time, what time is it in Moscow, Denver? I said 3 PM. 2. If its 2:30 PM in Abidjan, what time is it in the zone labeled +7? I put 9 PM In the zone labeled -4? I put 10 AM

*asked on August 14, 2014* -
## statistics

A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are

*asked on February 5, 2014* -
## Geometry-8th gr

The Circumference of a circle is equal to the area of the circle. Find the radius. Thanks.

*asked on March 8, 2013* -
## Geometry-8th gr

Can you please help me solve this question? Express the ratio x^2 + 4x -12/ x^2 - 4 in simplest form. Thanks.

*asked on February 1, 2013* -
## science (physics)

A chairlift carries skiers to the top of a ski hill. If the chairlift does 180 kJ of work in 15s, what is the power of the chairlift?

*asked on May 18, 2012* -
## science

During the shot put competition at a track and field meet, a shot putter transfers 245J of energy to a 7200g steel ball he is throwing. What is the velocity of the ball?

*asked on May 9, 2012* -
## confidentiallity in allied health

when should the computer bureau destroys or erases records,should the erasure be verified by the bureau to the physician?

*asked on December 13, 2011* -
## disease

what is the relation between high Blood glucose level (not Diabetes) and Urinary tract infection.

*asked on September 19, 2011* -
## english macbeth

i really nedd to know what i'm suppose to write in macbeth's theme superstition? i know that it's about the witches and their prophecies and apparitions and about banquo's ghost but what should i emphasize on??

*asked on May 27, 2011* -
## math

Two of these statements are false. Identify them. 1.4x12>3x15 2.96/231+13 Answers: 1. 48>45 2. 4844 48

*asked on March 23, 2011* -
## Math

Two of these statements are false. Identify them. 1.4x12>3x15 2.96/231+13

*asked on March 22, 2011* -
## Grade 2 english

Hi What is the hidden word in the following letters- panirlea Thanks

*asked on February 22, 2010*

## Pages

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