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Question:I really want to know it get's me angry I never know where to put the double bonds when sketching alkenes and also where to put the triple bonds on alkynes. Also, in non-organic chemistry, how are you supposed to know in the chemical formula where to put the double bond? PLEASE HELP! Do you ONLY EVER put double and triple bonds BETWEEN CARBON atoms? So if there's no carbon there will never ever be a double/triple bond?

Answers:I think you are either getting yourself angry over nothing because you are not required to know such a thing or you aren't being specific enough. 1. Where to put a double bond and alkenes and triple bond on alkynes: The first chapter of Organic Chemistry goes over Organic Nomenclature. Lemme briefly tell you how it works: Alkenes: The double bond location is indicated by the name of the compound. There is a number in the compound. Count to that carbon number and place the double bond after it. Example: 2-pentene: C-C=C-C-C (not including hydrogens) Alkynes: Same thing Example: 3-Hexyne C-C-C=/C-C-C (again no hydrogens and that =/ is supposed to indicated a triple bond) Maybe it will clear up your confusion if I tell you given a chemical formula like C6H10 it's impossible to know if it's Hexyne or 2-methylbutyne because there are so many isomers that share the same chemical formula. It may help to say with simply alkanes, alkenes, and alkynes with no weird branching or addition of halogens there's a formula: Alkanes: 2[# of carbons]+2= # of hydrogens C4H10-butane Alkenes: 2[# of carbons]= # of hydrogens C2H4-ethene Alkynes: 2[# of carbons]-2= # of hydrogens C5H8-pentyne 2. How are you supposed to know in the chemical formula where to put the double bond: Unless you're given an organic IUPAC name like 3-pentyne, for example, you can't really tell so you put it anywhere because its likely you're teacher doesn't carebut if you're dealing with compounds with only two carbons it should be obvious where to put the double bond...right between the carbons :P

Question:Hey I'm looking to work with a talented artist that is comofrtable creating 2D pencil sketch animations. An example can be found here: http://www.aniboom.com/animation-video/21559/DUEL/ You can email me about project details at air_pederson@hotmail.com, but basically I am looking to make a simple music video animation for a song (approximately 2 minutes). My budget is roughly $500-$600. Im really passionate about this project and hope I can find someone to work with who loves their craft and is eager to create a great piece of art.

Answers:im pretty sure i could do this that video seems fairly easy and ive been wanting to combine my drawing skills with my editing skills so i could go for somthing like this

Question:X: +2 (frequency=1), +1 (f=1), 0 (f=1), -1 (f=1), -2 (f=2), -3 (f=4), -4 (f=6), -5 (f=3), -6 (f=1)

Answers:You need an x-axis (horizontal) and a y-axis (vertical). You could draw the y-axis so that it crosses the x-axis at zero on the x-axis. However, for a histogram of difference scores, it is better to draw the y-axis at the left of the graph through x=-7. The frequency f is plotted on the y-axis. You draw vertical bars (columns) centred on x=-6, x=-5 and so on. The height of each bar equals the frequency. For, example the bar centred on x=+2 has a height f=1. The bars should be width=1, so that the width of the bar at x=0 will stretch from x=-0.5 to x=+0.5 and adjacent bars touch.

Question:Thank you.

Answers:Obviously, you could create a table of values ranging at least across the period of sin(x) [ie. 0 to 2*pi] which would define the x and y coordinates of the graph. Something like: x = 0.0000 acos(sin(x)) = 1.5708 x = 0.3927 acos(sin(x)) = 1.1781 x = 0.7854 acos(sin(x)) = 0.7854 x = 1.1781 acos(sin(x)) = 0.3927 x = 1.5708 acos(sin(x)) = 0.0000 x = 1.9635 acos(sin(x)) = 0.3927 x = 2.3562 acos(sin(x)) = 0.7854 x = 2.7489 acos(sin(x)) = 1.1781 x = 3.1416 acos(sin(x)) = 1.5708 x = 3.5343 acos(sin(x)) = 1.9635 x = 3.9270 acos(sin(x)) = 2.3562 x = 4.3197 acos(sin(x)) = 2.7489 x = 4.7124 acos(sin(x)) = 3.1416 x = 5.1051 acos(sin(x)) = 2.7489 x = 5.4978 acos(sin(x)) = 2.3562 x = 5.8905 acos(sin(x)) = 1.9635 x = 6.2832 acos(sin(x)) = 1.5708 However, an *easier* way to graph the function would be to use a graphing calculator or on-line utility to do the work. For example, I used the utility at: http://gcalc.net/ to create the graph of "acos(sin(x))": http://www.wikiupload.com/download_page.php?id=30799 .

From Youtube

Vector Fields - Sketching :Vector Fields - Sketching In this video, I give the definition of a 2d and 3d vector field, and do one example of roughly sketching a vector field. For more free math videos, visit PatrickJMT.com

Organic Chemistry: 3D Sketches of Molecules :Watch more free lectures and examples of Organic Chemistry at www.educator.com Other subjects include Geometry, Algebra 1/2, Pre Calculus, Pre Algebra, Calculus, Statistics, Biology, Chemistry, Physics, and Computer Science. -All lectures are broken down by individual topics -No more wasted time -Just search and jump directly to the answer