Tuesday
May 21, 2013

Total # Posts: 74

earth science
Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox

earth science
Describe the change in duration of insolation from the Equator to the North Pole A) In the winter b) In the summer c) on the Equinox

chemistry
The evaporation procedure must be completed in 10-15 minutes right after isolating aspirin in the filtration step with alumina or the aspirin decomposes which will create more surface area on the molecule resulting a lower melting point and wider temperature range.

Chemistry
Convert 63.7 kg of oxygen to grams. Then use stoichiometry and convert the grams of Oxygen to moles of Oxygen, then moles of KNO3 using the equation. Calculations: 63.7 kg ---> 63,700 g. Divide by 32 grams of O2, then multiply by (4 moles KNO3/5 moles O2). For the second pa...

elementary
the rule is to use numbers and you always have to read the question to do it.

Math
In a survey of a TriDelta chapte with 54 member, 20 were taking mathematics, 35 were taking English, and 6 were taking both. How many were not taking either subject?

precalc
how do u do evaluateL cos135

Math
Solve the following 2w^3 4c^3t^2 _____ - ________ 9c^3d^3 3b^2d^2

Math
5k^2u^2 3z^2 ________ + ____ 12b^2d^2 4bk^3 How would I solve this?

Math
Is this equation right is it worked correctly x 1 ----- - -------- x2-4 x2+4x+4 This is how she simplified it: x(x2+4x+4) - 1(x2-4) ------------------- (x2-4)(x2+4x+4) x3+4x2+4x-x2+4 ------------- x4+4x3-16x-16 x3+3x2+4x+4 ------------ x4+4x3-16x-16 1+3x2+1+1 --------- x4+4-4-...

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