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Mandy
Questions and answers by
Mandy
, page 2
Questions (319)
Wwrite a balanced equation for the following chemical processes: the reaction between NaOH an dsalicyclic acid; the reaction
1 answer
421 views
Calculate the pH of each of the following solutions:
a) .35 M hydrochloric acid, HCl b) .35 M acetic acid, HC2H3O2 c) .35 M
4 answers
3,456 views
Could you please review for me. Thank you
The past has a hold on me in many ways. Thinking back on my childhood, I have made
5 answers
553 views
Write formulas for dinitrogen tetroxide, phosphate ion, and ammonium sulfate. Please Help! I don't know where to start!
1 answer
419 views
Measuring coefficients of friction. A coin is placed near one edge of a book lying on a table, and that edge of the book is
1 answer
1,144 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
2 answers
846 views
A syringe with a movable piston, contains 0.057g of carbon dioxide gas at 23.5C. If the pressure in the syringe was 953mmHg,
2 answers
579 views
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of
2 answers
777 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
5 answers
3,539 views
Acetone, C3H6O, is the main ingredient of nail polish remover. A solution is made up by adding 35.0mL of acetone(d=0.790g/mL) to
2 answers
810 views
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of
3 answers
2,407 views
The following general reaction was found to be first-order with respect to A and second-order with respect to B:
A + B --->
2 answers
481 views
2NOCl--->2NO + Cl2
Time(s) [NOCL)(M) 0 0.200 575 0.158 995 0.137 2080 0.102 a) Calculate the rate constant, k, and include units.
3 answers
455 views
G. William Domhoff's view of the power structure of the United States most closely resembles the analysis of which sociological
4 answers
559 views
A total of 30.6 g of potassium hydrogen phthalate is needed to completely neutralize a 500.0 mL solution of sodium hydroxide.
1 answer
500 views
A solution contains the following:
NH3(aq) + H2O(l) <--> NH4+(aq) + OH-(aq) Adding NH4Cl to this solution shifts the equilibrium
2 answers
1,300 views
Evaluate - |– 618|
the brackets indicate an absolute, so the answer is 618, but the negative before the brackets makes it
1 answer
388 views
How do you figure out the molecular weight?
1 answer
377 views
Trains A and B are traveling in the same direction on parrallel tracks. Train A is traveling at 60 mph, and train B is traveling
1 answer
514 views
Trains A and B are traveling in the same direction on parrallel tracks. Train A is traveling at 60 mph, and train B is traveling
3 answers
879 views
Trains A and B are traveling in the same direction on parrallel tracks. Train A is traveling at 60 mph, and train B is traveling
2 answers
608 views
Calculate the enthalpy change in kilojoules when 54.7g of MgCO3 decomposes according to the following equation:
MgCO3 (s) into
3 answers
1,834 views
Calculate the enthalpy for the following reaction: 4 NH3 (g) + 5 O2 (g) into 4 NO (g) + 6 H2O (g).
You may only use the following
5 answers
3,409 views
A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a
1 answer
400 views
The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object
1 answer
323 views
The velocity of a particle is given by the relation v(t)=(-5.00 x 10⁷)t² = (3.00 x 1065)t. At time t=0, the particle is
1 answer
426 views
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius
2 answers
1,100 views
The speed (v) of an ocean wave depends on its wavelength ë (measured in m/s) and the gravitational field strength g (measured
1 answer
445 views
A car is driven from point A to B at a constant speed of 25.0 m/s along a straight line, and then back from point B to A at a
1 answer
387 views
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius
2 answers
708 views
Two solid spheres A and B are made from the same material. The mass of sphere B is eight times that of sphere A. If the radius
2 answers
955 views
The speed (v) of an ocean wave depends on its wavelength ë (measured in m/s) and the gravitational field strength g (measured
1 answer
465 views
The velocity of a particle is given by the relation v(t)=(-5.00 x 10⁷)t² = (3.00 x 1065)t. At time t=0, the particle is
2 answers
584 views
The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object
1 answer
362 views
The velocity of a particle is given by the relation v(t)=(-5.00 x 10⁷)t² = (3.00 x 1065)t. At time t=0, the particle is
1 answer
393 views
The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object
1 answer
305 views
The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object
3 answers
379 views
The speed (v) of an ocean wave depends on its wavelength ë (measured in meters) and the gravitational field strength g
1 answer
459 views
The speed (v) of an ocean wave depends on its wavelength ë (measured in meters) and the gravitational field strength g
2 answers
560 views
To the nearest second, when wil the minute hand lie exactly over the hour hand between 2pm and 3pm?
1 answer
397 views
Identify and describe which, if any, of the following creation and consequence situations that Native Americans has faced:
Native
2 answers
1,044 views
Describe the costs and benefits to society from purchasing insurance.
1 answer
412 views
The longer diagonal of a rhombus is 2 times as long as the shorter diagonal. Find the length of the shorter diagonal if the area
4 answers
1,342 views
why wasn't the articles of confederation adopted for 5 years?
1 answer
351 views
The northwest ordinance provided for all of the following except:
a. the eventual creation of three to five states out of the
5 answers
1,315 views
The Articles of confederation were nto adopter for fives because: (A) the antifederalists waged a stiff battle against them (B)
3 answers
366 views
Please help me solve this problem. I have a test tomorrow and I do not understand at all.
Determine all solutions of the
4 answers
429 views
Which of the following is the proper form to tell someone a writer's feeling
a. diagram b. autobiographical essay c. poem is
1 answer
395 views
An essay that shows why a location has become polluted is an example of
a. organization by degree b. chronological order c. main
2 answers
610 views
Find each value if g(x)=x^3-x.
SO, g(5)=(5^3)-5... would equal 120? Did I do this right?
1 answer
255 views
What does disable mean?
1 answer
325 views
Write an equation in slope-interept for, for the lnie that satisfies each set of conditions.
8. passes through (-2, 1),
1 answer
450 views
Research the Goldman Sachs website. Using your research findings from the Library and the Internet, develop both an EFAS
4 answers
1,035 views
3. Imagine that more than one band appeared in the GC chromatogram, but you were unable to run the standards. Instead you took
1 answer
784 views
In hydration of of 2-Ethyl-1-Butene
What important bands (include wavenumbers) would begin to disappear in an IR spectrum and
3 answers
806 views
Hi everyone!!! Can someone please tell me the answer to the following questions? Thank you so much!!!!
In Hydration of
1 answer
476 views
In Hydration of 2-Ethyl-1-Butene which alcohol is predominant?
Thanks!!!
1 answer
465 views
In Hydration of 2-Ethyl-1-Butene which is the major product and which is the minor product? possible products are
1 answer
690 views
in Synthesis of para-Methylacetanilide What was the purpose of the sodium acetate solution
1 answer
694 views
in Synthesis of para-Methylacetanilide What important bands (include chemical shifts) would begin to disappear in a H-1 NMR
1 answer
449 views
Can you please help me with some questions I have on my Chemistry lab?
3 answers
448 views
McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and
1 answer
418 views
McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and
1 answer
1,049 views
Can someone PLEASE help me brief a case for Waller Vs. Florida 397 U.S. 387 ??
4 answers
461 views
What are two advantages and two disadvantages of collectivism and individualism? I am having a hard time finding the answer to
4 answers
566 views
Could some one please help me with this assignment. I am really confused about this. Here is what I have to do:
Write 200 to 300
4 answers
827 views
Discuss how confirmation bias can influence perceptions and how some beliefs can actually generate their own confirmation in 200
4 answers
451 views
I need some help with this assignment. I really don't understand this class. Can someone please help me understand it
5 answers
466 views
By what amount does the sum of the roots exceed the product of the roots of the equation (x-7)(x+3)=0?
I have no idea what to do!
2 answers
1,149 views
Why is the total distance traveled by a mass traveling in a circle of radius R during n revolutions, 2piRn?
2 answers
1,276 views
The center of a 1.50 diameter spherical pocket of oil is 1.20 beneath the Earth's surface. Estimate by what percentage directly
1 answer
657 views
You know your mass is 69 kg , but when you stand on a bathroom scale in an elevator, it says your mass is 78 kg. What is the
4 answers
1,629 views
The center of a 1.50 diameter spherical pocket of oil is 1.20 beneath the Earth's surface. Estimate by what percentage directly
2 answers
865 views
Calculate the OH− concentration after 51.3
mL of the 0.100 M KOH has been added to 25.0 mL of 0.200 M HBr. Assume additive
1 answer
451 views
I have been working on this problem all day and i just cant get the answer. Please help I would really appretiate it.
The
3 answers
514 views
A zinc-copper battery is constructed as follows at 25°C.
Zn|Zn^2+ (0.15 M)||Cu2+(3.00 M)|Cu The mass of each electrode is 200.
1 answer
507 views
A mixture of Nitrogen and Argon gases in a balloon exerted a pressure of 2.55 atm. Given that there were 1.0 g nitrogen gas and
2 answers
899 views
HCl(g) HBr(g) HF(g)
Which of these gases has the fastest average speed? Which has the highest average kinetic energy?
1 answer
794 views
what is the delta H of N2 + 3H2 ---> 2NH3 + 22,000 cal
2 answers
591 views
h(0.5) if h(x) = 6-2x^3
So I set it up as 6 - 2(0.5^3) correct? That way only the (0.5) is being cubed, and THEN multiplied by 2?
4 answers
296 views
Write an equation in slope-intercept form for each line described.
(I just need my work checked, thank you!) The slope = 1/2, and
5 answers
924 views
I need some help determining the elements and principles of an art piece called "Polly, Minou and Eon" by Will Barnet
5 answers
482 views
Thanks for the websites, I have a worksheet of a list of all the elements and principles, but i am still struggling as to which
5 answers
442 views
i have been working one this paper for a few days and i have been struggling with it, I need to write about the elements and
2 answers
583 views
In a city with no cars of mixed color, 30% of the cars on the road are brown. Forty percent are either brown or green, and 10%
10 answers
575 views
Upon examining its records, a hospital computes the distribution of the number of days a patient stays at the hospital. They
2 answers
992 views
The basketball player Steve Nash is the all-time career free throw shooter among active players. He makes about 90% of his free
2 answers
1,265 views
In each of the following situations, state whether or not the given assignment of probabilities to individual outcomes is
2 answers
857 views
If there are only two possible outcomes to an experiment then...
A.) the two corresponding probabilities must each be.50. B.) the
2 answers
531 views
Where should commas be placed?
Combine flour shortening pecans and cold water to make a tasty pie crust.
26 answers
18,783 views
The difference between two numbers is 9 and the product of the numbers is 162. Find the two numbers. Explain your working
4 answers
2,516 views
You are walking from your math class to your science class carrying a book weighing 112N. You walk 45 meters down the hall,
2 answers
1,341 views
A force of 600N is applied to a metal box to pull it 15 m across a floor. The roped used to pull the box is held at an angle of
4 answers
1,665 views
I am currently making a short movie about "NO SMOKING!". So, I am now searching for the right music background for the movie.
1 answer
429 views
Pam has a mass of 40Kg and she is at rest on smooth, level, frictionless ice. Pam Straps on a rocket pack. The rocket supplies a
7 answers
2,597 views
From what height would a compact car have to be dropped to have the same kinetic energy that it has when being driven at 100
2 answers
541 views
solve each system by graphing
2x-y=4 5x-y=13
1 answer
344 views
solve each system graphically. be sure to check your solution. if a system has an infinite number of solutions, use the
2 answers
608 views
The product of two consecutive positive integers is 11 more than their sum. What the integers? Please help.
3 answers
760 views
A store mixes Brazilian coffee worth $11 per Kilogram, Turkish coffee worth $13 per kilogram. The mixture is to sell for $12 per
2 answers
671 views
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