Thursday
December 12, 2013

# Posts by harry

Total # Posts: 199

Chemistry
What is the balanced net ionic equation for the following reaction: 2 NH4Cl + Ba(OH)2 = 2H2O + BaCl2 + 2 NH3 i got 2NH4^+ +2OH- = 2H2O + 2NH3 but it keeps telling me i'm wrong

physics
What displacement must be added to a 50cm displacement in the +x-direction to give a resultant displacement of 85cm at 25 degrees

calculus
how do i differentiate √secx+tanx ??

you have 8 moving boxes that you can use to pack for college. each box holds 15 lbs of clothing or 60lbs of books. let c be the number of boxes that contain clothing. write a function that gives the total pounds T of the boxes in terms of the number of boxes that contain cloth...

algebra with pizazz pg 40 riddle
4xt5(7x-3)=9(x-5)

physics
model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a constant upward acceleration of 1.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? m (b) How long after lift-off does...

gcse science
how would you get iron from iron oxide?

Algebra
what's the question asking? the zeroes of the function? the domain? in this case, if you want to find the domain you have to factor the bottom (5-x)/[(x-3)(x-5)] and because you know the denominator cannot be zero because that will make the problem undefined, the domain wo...

Chem
For a titration to be effective, what must be the relationship between the equivalence point and the endpoint?

science
what resistance would produce a current of 120 amps from a 6-volt battery?

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