Sunday
August 30, 2015

Posts by Jacob


Total # Posts: 717

math (trig)
i have some problems doing trig the first one is: Show that cos(x/2) sin(3x/2) = ½(sinx + sin2x) i know that you are supposed to substitute all those trig function things in it but i kind of forgot how to the only that i can see substituting in is the double angle one ...
April 30, 2007

chemistry
Which solution would CaC2O4 be most soluble in? Na2C2O4 NaHC2O4 H2C2O4 NaCl HCl I due to common ions i think it would be one of the first three and i think it is Na2C2O4 because the other 2 have Hydrogen. Is it Na2C2O4? No, the common ions work just the other way; CaC2O4 will ...
April 7, 2007

red panda bear
Need to find good web site on a red panda bear. Seen lots none any good. Please check these sites carefully. Then post a specific question if you don't find what you need in these sites. http://www.wellingtonzoo.com/animals/animals/mammals/panda.html http://www.bbc.co.uk/...
March 28, 2007

PLEASE HELP SOLVE RIDDLE
What do you call a skinny white guy on the moon
March 23, 2007

physics (check my answers)
When the nuclear fuel in the sun is gone, the sun will collapse to a a. black hole b. white dwarf c. supernova d. neutron star My answer: I think its a black hole. If the mass of the Earth were suddenly doubled while the radius was unchanged, your weight would be? My answer: ...
February 17, 2007

math
how do you write an equivalent addition equation
February 14, 2007

physics
What's inertia? Inertia is the tendency of an object at rest to remain at rest; or the tendency of an object to continue moving if it is moving. In plain language, it's the tendency of an object to want to continue doing whatever it's doing. I had a definition ...
February 8, 2007

chemistry
The balanced equation doesnt seem to help because the thiosulfate is not in the equation, I think it is preventing the reaction from going backwards. THe equation is: 2iodide ion + hydrogen peroxide + 2 H3O --> elemental iodide + 4 H2O within the reaction there is also ...
February 5, 2007

Chemistry
How many moles of aluminum is needed to form 3.4 moles of aluminum oxide? 3.4 mol Al2O3 x (2 mol Al/1 mol Al2O3) = ?? mol Al. Note how the units we don't want cancel but the unit we want to keep remains.
February 1, 2007

isomers molecular formula
what are isomers that have the same molecular formula but a different arrangement of atoms called? geometric isomers, enantiomers, covalent isomers, structural isomers. They could be any of those except covalent isomers. I haven't heard of that one.
January 17, 2007

pH scale
If a base is added to water, the pH will increase, decrease, stay the same, or increase sometimes and decrease sometimes. I have asked several friends and the two answers I get is increase from 3 of them and stay the same from 2 of them. I am confused. And so are your friends...
January 17, 2007

symbolic?
Shakespeare has chosen to use a “poisoned sword” and the “poisoned chalice” to end the lives of the main characters in the play.why is this symbolic in the play? Since this is not my area of expertise, I searched Google under the key words "Shakespeare...
December 1, 2006

reading
ward for the framers to resolve there conflickthy was it so h They formed a small group, and worked it out rather quickly.
November 6, 2006

novel= death on the ice english
This book is a priceless story of 78 Newfoundland men who lost their lives tragically. The book is not "gay", you just care too much about stupid stuff instead of your schoolwork and haven't taken the time to appreciate literature. Grow up.
September 22, 2006

Social Studies!
rose and i are the only smart ones here
September 9, 2006

Social Studies!
cape cod
September 9, 2006

Social Studies!
2. its long island
September 9, 2006

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