Answers edited by Truong-Son N.

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In a speed vs. time graph where a curve is depicted, why does the slope of a tangent line drawn to the curve represent the instantaneous speed, and not the average speed?
What physical or chemical changes occur in a flame?
How do you factor a "perfect square trinomial" #16x^2+48x+36 #?
What is #lim_(x->0) xlnx - x^2#?
How do you find the equation for the tangent line for #y=1/x# at #x=1#?
Why does polarization occur?
What can I do to prepare for organic chemistry lab?
Is an acid catalyzed hydro-alkoxy addition the same as an acid-catalyzed alkoxyation?
Explain what is meant by the dual nature of light?
Using the equation #(d[NO_3^(-)])/(dt) = k_1[NH_4^(-)]# calculate the predicted half-life of #"NH"_4^(-)# if the initial concentration is 2600 ppm?
How may I read NMR splitting?
Can ammonia complex with copper or chromium?
Buffer or no buffer? #"45 mL"# of #"0.60 M"# #"KF"# reacts with #"25 mL"# of #"0.60 M"# #"HClO"_4# to yield #"HF"# and #"KClO"_4#, all aqueous.
How do you use differentiation to find a power series representation for #1/(6+x)^2#?
How can I calculate molality of pure water?
The probability envelope for an electron is called?
How do you apply the sum and difference formula to solve trigonometric equations?
What does "cis" isomer mean in cyclohexane ring?
What are acid catalyzed hydro-alkoxy additions used for?
How do you use the square roots of 144 and 169 to estimate the square root of 154?
Where can I find electronegativities of lithium, carbon, and fluorine? How do they relate to the tendency to obtain a noble gas configuration?
How do you calculate enthalpy change?
How do you find the antiderivative for #1/2x^5#?
What are the rules to identify the major resonance structure?
What does "trans" isomer mean in cyclohexane ring?
What is the first law of thermodynamics and how is it related to conservation of energy?
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