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Kate
Questions (981)
A circular tablecloth is draped over a rectangular table so that the center of the cloth is directly above the center of the
1 answer
586 views
A buffer solution of pH=9.24 can be prepared by dissolving ammonia and ammonium chloride in water. How many moles of ammonium
1 answer
793 views
What is the [S^-2] in a saturated solution (.1 M) of H2S, in which the pH had been adjusted to 5.00 by the addition of NaOH? For
1 answer
558 views
if u add if you add 2.0 ml of 10.0 M HCl to 500 ml of a .10 M NH3, what is the pH of the resulting solution? for NH3,
1 answer
420 views
what is the molality of a 0.075m of ethyl alcohol in water at 25 degrees celcius. Assume the density of the solution at such low
1 answer
590 views
Find the limit as x->0 of (2-2cos(x))/(sin(5x))
Mathematically I got 2/5, but on the graph it appears to be 0.
3 answers
418 views
A person that has a sevre overreation to an intense emotion might be experiencing a
a. galvanic skin response b. sympathetic
1 answer
617 views
1. The Stubborn Child Law enacted by Massachusetts in 1646 permitted parents to
A. use corporal punishment when children
5 answers
1,498 views
Using l'hopital's rule, find the limit as x approaches zero of
(e^(6/x)-6x)^(X/2) I know l'hopital's rule, but this is seeming to
3 answers
555 views
Using l'hopital's rule, find the limit as x approaches infinity of
(e^(6/x)-6x)^(X/2) I know l'hopital's rule, but this is
0 answers
497 views
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6?
I think the molecular
4 answers
2,675 views
What is 6/12 in a equivalent fraction
30 answers
8,029 views
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6?
I think the molecular
0 answers
886 views
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6?
I think the molecular
0 answers
619 views
Does anyone know what SCl6 is used in? Note: I don't mean SF6. *Sulfur Hexachloride*
Thank you :)
9 answers
1,689 views
I have a project on Sulfur Hexachloride, or SCl6, but I can't find any info on it! Any help?
3 answers
597 views
I have a project on Sulfur Hexachloride, or SCl6, but I can't find any info on it! Any help?
0 answers
459 views
When ice melts, it absorbs 0.33 per gram.How much ice is required to cool a 12.0 drink from 72 to 37, if the heat capacity of
4 answers
750 views
A tennis ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One
1 answer
2,147 views
Explain why the occupants in a running car observe objects on the roadside as though they are running backwards.
1 answer
421 views
In Triangle SUM, if SU = 10 cm and UM = 15 cm then MS must be less than how many centimeters?
10 15 20 25...... Am I right?
1 answer
459 views
Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.
1 answer
1,200 views
Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.
1 answer
2,156 views
A catalytic converter combines 2.55 g CO with excess O2.What mass of CO2 forms?
1 answer
1,284 views
Find all the critical numbers for the function f(x) = cube root of 9-x^2.
help please?!
2 answers
1,508 views
How do you find use the annual net profit with the payables and inventory costs to determine the total annual cost a firm would
0 answers
442 views
I just finished an organic chemistry lab experiment on separating and analyzing an unknown acid/neutral compound mixture using
1 answer
1,196 views
Use average bond energies to calculate delta Hrxn for C(s)+2H2O(g)-->2H2(g)+CO2(g)
2 answers
2,035 views
If I had the equation
H2 + I2 --> 2HI could I write the rate of reaction as d[H2 + I2]/dt = k[H2]^x[I2]^y were x is the order of
1 answer
645 views
Amount after time t A (t) = yobt
Where: yo = starting amount b = growth constant (percent remaining) t = number of time units In
1 answer
693 views
Find the pH of a buffer that consists of 1.6 M sodium phenolate (C6H5ONa) and 1.0M phenol (C6H5OH). (pKa of phenol=10.00)
1 answer
1,071 views
What is the volume of 325 mL of a sample of gas at 51.0°C and 710. mm Hg if the conditions are adjusted to STP? Assume the
1 answer
975 views
What is the volume of 325 mL of a sample of gas at 51.0°C and 710. mm Hg if the conditions are adjusted to STP? Assume the
1 answer
454 views
NH4NO3(s) H2O(g) + N2(g) + O2(g)
Consider the unbalanced equation above. What will be the total volume of gas produced at 720. mm
1 answer
735 views
How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C?
For water: s =
1 answer
559 views
How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C?
For water: s =
1 answer
774 views
I am doing an assignment where I need to find an example of a spring that is used in a common device. Is a phone chord
2 answers
347 views
A quantity N2 of occupies a volume of 1.4L at 290K and 1.5atm . The gas expands to a volume of 3.1 L as the result of a change
1 answer
951 views
Please let me know if I figured this out correctly ...
2t + 4 >/= t -t -t 1t + 4 >/= 0 - 4 -4 1t >/= -4 /1 /1 t >/= -4
0 answers
502 views
Calculate the H3O+ concentration and pH of a carbonated beverage that is .10 M in dissolved CO2- (Essentially all of the H3O+
1 answer
873 views
What do noble gases have in common?
3 answers
456 views
If a ball is sliding down a ramp that is on a slant, so that the ball sliding down falls off. Is the speed of the ball
2 answers
568 views
Is the lining of the esophagus either :
1) Simple Squamous? OR 2) Stratified Squamous? -Please help . I know it has to be either
2 answers
399 views
What is 90% of 110?
2 answers
341 views
Calculate the mass of ethanol required to heat 200mL of water from 21 degrees celcius to 45 degress celcius
0 answers
569 views
What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means
0 answers
504 views
What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means
0 answers
428 views
Please help with this assignment!Thanks. I picked "Justice" I want to write about What is the moral aspect of Justice. Tell how
0 answers
692 views
Need help with topic "Justice"
Need 2 question: is what is the moral aspect of Justice? Research plan: Have investigate my
2 answers
458 views
I'm doing a vector problem which involves two forces with an angle of 30 degrees between them acting on an object. I think that
1 answer
648 views
To simplify the expression of
4r(3r-7) I came up with 12r^-28r. I cannot take this any further because they are not like terms,
2 answers
446 views
If a point on the surface of a sphere with its center at the origin has coordinates (9,4,6) how do you show the radius
3 answers
591 views
How about this one?
Simplify: -(21k - 3 + 4) - 17k -21 + 3 + -4 - 17k -38k + -1
2 answers
541 views
Just so I know I am understanding this, can you please let me know if I am doing this right?
Simplify: 24u - 6(8 - 4u) + 52 24u
2 answers
385 views
If f(x)=x^2-x, find the value if x=(2)-2. TIP: x^2 means x squared
1 answer
333 views
I need help on a homework problem. "Determine a vector equation for the line perpendicular to 4x-3y=17 and through point (-2,4).
0 answers
864 views
Can someone explain to me what the calorimetry equation - q=(m)(ΔT)(Cp) means exactly, in your own words, and how identifying
1 answer
550 views
A gas sample is connected to a closed-end manometer. The difference in mercury levels in the 2 arms is 115 mm. What is the gas
1 answer
1,076 views
A lunch box is 30cm long, 14cm wide and 12cm high. The formula for the volume of a box is v=lwh. Find the volume of the lunch
2 answers
840 views
how do I solve the equation (y+6) divided by 3- (y-3) divided by2=2
2 answers
511 views
How can you make 7 by only using the digits 1, 2, 3, and 4? You can put two numbers together (ie 12 or 34). You can use the
1 answer
1,069 views
How can you make 34 by only using the digits 1, 2, 3, and 4? You can put two numbers together (ie 12 or 34). You can use the
3 answers
604 views
Just checking to make sure I understand this.
Absolute value bars are grouping symbols. Use the order of operations to evaluate
0 answers
462 views
A water solution containing 25.0% sucrose by mass, has a density of 1.25g/mL. What volume of this solution in liters, must be in
1 answer
651 views
I'm trying to calculated the rate of reaction
In this lab I took a 50 mL beaker and poured in 10 ml of cold distilled water into
0 answers
1,126 views
I'm trying to calculated the rate of reaction
In this lab I took a 50 mL beaker and poured in 10 ml of cold distilled water into
0 answers
557 views
Kim is twice the age of Ryan. In 4 years Kim will be 7 years older than Ryan. How old is Kim now?
1 answer
461 views
a brain weighing 1.0 Ib occupies a volume of 620 ml. What is the specific gravity of the brain?
5 answers
3,255 views
A moving Company weighs 20 boxes you have packed that contain either books or clothes and says the total weight is 404 pounds.
1 answer
833 views
An alpha particle (mass = 6.6 10-24 g) emitted by radium travels at 2.5 107 ± 0.1 107 mi/h.
(a) What is its de Broglie
1 answer
1,026 views
Hello I had a couple of questions and was woundering if you have staff members that are teaching or have taught
AP BIOLOGY AP
4 answers
808 views
I know my english is crap any corrections suggestions cirtisims etc. would greatly be apreciated... if you know any biology and
0 answers
633 views
Convert 5:25:25 to seconds.
1 answer
352 views
Available evidence suggests that about 20 percent of the asteroid’s mass turned to dust and spread uniformly over Earth after
1 answer
1,335 views
actually cos(x)=-2 has an infinte amount of solutions so to say it dosen't have ONE is just wrong... but yah I don't buy that
2 answers
635 views
same as my question below please help me post your answer on here if you have one on these forms of course
h t t p : / / w w w .
0 answers
355 views
no one on physics forums seems to know the answer so I was wondering if you guys could help
post anser on these forms of course
1 answer
601 views
For many years the recovery of gold-that is, the seperation of gold from other materials-involved the use of potassium cyanide:
4
1 answer
3,887 views
In the figure we see two blocks connected by a string and tied to a wall, with theta = 33°. The mass of the lower block is m =
3 answers
2,675 views
Rectangle ABCD has vertices C and d on the x-axis and vertices A and B on part of the parabola y = 9 - x^2 that is above the
0 answers
1,482 views
x +/- 3
is that mroe simplified then writing it out x + 3, x - 3 I thought it would be becaue we normally say simple is when all
1 answer
539 views
I'm trying to write an equation for all the infinite values of the equation
-i ln(2 + sqrt(3) ) people have told me that its
0 answers
422 views
1. The problem statement, all variables and given/known data
cos(x) = -2 I was trying to solve that problem ignoring what people
1 answer
1,191 views
1. The problem statement, all variables and given/known data
cos(x) = -2 I was trying to solve that problem ignoring what people
0 answers
1,223 views
Having some trouble graphing this
y = 3 - x for x less then or equal to 1 y = 2x for x greater than one how do I indicate that
0 answers
432 views
(60 + 16sqrt(15))/(60 + 17sqrt(15))
i tried dividing but got stuck thanks
0 answers
386 views
Find the range of
y = (3x-1)/(2x^2 + x - 6) I was going to take the derivative of the numerator and denomenator and then use the
2 answers
925 views
Find the range of
y = (3x-1)/(2x^2 + x - 6) I was going to take the derivative of the numerator and denomenator and then use the
0 answers
1,314 views
I'm kind of confused as to what simplified mean? Can you please provide me with a definiton...
Like I'm kind of stumped as to
4 answers
1,326 views
Yes I was trying to find the range
y = (x^2 -4)/(x^2 - x -12) ok using 2(4 +/- sqrt(15) ) sorry I forgot the minus in the
1 answer
448 views
y = (x^2 -4)/(x^2 - x -12)
dy/dx of numerator I got 2x dy/dx of denomenator I got 2x - 1 dy/dx of y I got (x^2 - 16x
1 answer
453 views
I'm stuck on this problem please help me
find the range of this equation y = (x^2 - 4)/(x^2 - x - 12) I know that it is
0 answers
491 views
Ok so I kind of forgot how to do this so I looked up on the internet and was told divide the coefficent in the numerator of the
1 answer
495 views
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 7 9 9 0 5 6 1 4
well it's on this page just CTRL+F
7 answers
489 views
I was doing this problem
sin^-1 (4/5) if I'm not mistaking most teachers would say that .927295218 radians is wrong is just an
5 answers
828 views
Even if you have no idea what on earth any of this stuff is but have a vast knowledge in complex number system you might be able
1 answer
639 views
Did I do these probelms correctly?
Find the intercepts 1. y^2 = x^2 - 4x y^2 = x(x - 4) Y intercepts y^2 = 0(0 - 4) (0,0) x
1 answer
617 views
Which one is more "simple"?
(-7(2x + 3))/(x(x + 3)) or (-14 x + 21)/(x^2 + 3x) I would go with the factored form but i'm still
2 answers
446 views
I'm kind of confused as to what exactly simplified means by deffintion which one is more simple
(2x)^6 or 64x^6 I thought
1 answer
1,136 views
What does it mean to be "simplified"
which one is most "simple" 2(3+5) or 6 + 10 ??? I've been told both and wonder if someone
1 answer
782 views
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