Questions Asked

jk_16:
Group Title
A problem in a test given to small children asks them to match each of three pictures of animals to the word identifying that animal. If a c…
 updated one month ago
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jk_16:
Group Title
For what integer values of n is xy a factor of x^n  y^n?
 updated one year ago
 2 replies
 3 Medals

jk_16:
Group Title
how many sodium ions in 99.6mg of .750M Na2SO4 soln?
d=1.10g/mol
answer: 8.18*10^19
 updated one year ago
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jk_16:
Group Title
For an intro chem course
Zn^0 (s)+ Cu^2+ (aq) + 2H+ >Cu + H2O(l)
…
 updated one year ago
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jk_16:
Group Title
Intro course
Zn^0 (s)+ Cu^2+ (aq) + 2H+ >Cu + H2O(l)
…
 updated one year ago
 1 reply
 1 Medal

jk_16:
Group Title
Oxidation state for
2Mn^(2+)
…
 updated one year ago
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jk_16:
Group Title
oxidationreduction question..
MnO4(2)
Mn+4(2)=2
…
 updated one year ago
 4 replies
 1 Medal

jk_16:
Group Title
I was able to solve the problem but I dont know why.
problem: S + O2 > SO2; 2.6*10^7 tons of SO2 formedhow many tons of sulfur??
…
 updated one year ago
 3 replies
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jk_16:
Group Title
I have glucose (C6H12O6)..I find molar mass=180.16[g/mol]
if I want the mass in grams I can just do
…
 updated one year ago
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jk_16:
Group Title
Carry out the following calculations and round to the proper number of significant figures.
Log 967.3
Im putting in 6.8745 but it says its…
 updated one year ago
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jk_16:
Group Title
How to partial fraction decomp for:
1/[s^2(s3)^2]
…
 updated one year ago
 5 replies
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jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 6 replies
 1 Medal

jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 1 reply
 No Medals Yet

jk_16:
Group Title
How many grams of ZnSO4 will be made from 50grams of Zn and 50grams of K2Cr2O7?
4Zn + K2Cr2O7 + 7H2SO4=4ZnSO4 + 2CrSO4 + K2SO4 + 7H2O
 updated one year ago
 2 replies
 1 Medal

jk_16:
Group Title
calculate the quantity of heat in KJ required to raised the temp. of 2.15kg iron bar 24c (specific heat iron=.473J/gc)..answer in KJ
 updated one year ago
 1 reply
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jk_16:
Group Title
How would you put y=ln(x+1)/ln(x) in terms of x=
thanks
 updated one year ago
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jk_16:
Group Title
Is there a limit as to the magnitude of the radius of a bubble in water is?
 updated one year ago
 2 replies
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jk_16:
Group Title
Question is attached..on calculus (derivatives) and induction for higher order derivatives
 updated one year ago
 16 replies
 1 Medal

jk_16:
Group Title
how would I find this??
 updated one year ago
 3 replies
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jk_16:
Group Title
how would I find the second derivative of uv with respect to x
exact notation:
 updated one year ago
 1 reply
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jk_16:
Group Title
how do you evaluate this limit??
Limit as x>a
[f(x)m(xa)c]/[xa]
…
 updated one year ago
 1 reply
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jk_16:
Group Title
why is
((m(xa)+c))
equal to
…
 updated one year ago
 5 replies
 1 Medal

jk_16:
Group Title
Suppose that y=f(x) is differentiable at x=a and that g(x)=m(xa) + c is a linear function in which m and c are constants. If there error E(…
 updated one year ago
 1 reply
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jk_16:
Group Title
Suppose that y=f(x) is differentiable at x=a and that g(x)=m(xa) + c is a linear function in which m and c are constants. If there error E(…
 updated one year ago
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jk_16:
Group Title
m1, m2, m3, Radius, coeffiction of friction U
 updated 2 years ago
 2 replies
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jk_16:
Group Title
mass1 pulled down by m2 using a pulley system..
kinetic friction of u..find velocity after distance D
 updated 2 years ago
 2 replies
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jk_16:
Group Title
A cutting tool several forces acting on it. One force is F=axy^2 j , a force in the negative ydirection whose magnitude depends on the pos…
 updated 2 years ago
 16 replies
 1 Medal

jk_16:
Group Title
A cutting tool several forces acting on it. One force is F=axy^2 j , a force in the negative ydirection whose magnitude depends on the pos…
 updated 2 years ago
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jk_16:
Group Title
in ti89 titanium how do i make it so that when i input sin(pi/3) it returns sqrt(3)/2
??
 updated 2 years ago
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jk_16:
Group Title
proff showed us a trick today for trig substitution:
integral of dx/(x^2/16)
we know: dx/(x^2+1)=arctanx+C
…
 updated 2 years ago
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