Recent Physical Education Questions
Sunday, December 1, 2013 at 5:24pm
Solar energy is transformed into carbohydrates, sugars and other materials through plants (everything from algae to Redwoods). Plants also put out oxygen from the CO2 they absorb. The carbon is used as a building block for the materails they make. The plants also "fix&...
Sunday, December 1, 2013 at 5:22pm
Sunday, December 1, 2013 at 5:20pm
A pharmaceutical preparation of pH 6.2 is preserved with substance A (pKa 8.5). If the preservative effect is due to the undissociated molecule determine the per cent of active preservative present in the preparation. Thanks! :)
Friday, November 29, 2013 at 2:48pm
d/ 2 A1 + 3 CuSO4 = 3 Cu + A12 (SO4)3
Wednesday, November 27, 2013 at 4:51pm
Do metalloids have a complete outermost shell?
Wednesday, November 27, 2013 at 12:45pm
How many compounds are in potassium sulfide (K2S)?
Wednesday, November 27, 2013 at 12:42pm
what physical components do the sun and earth have in common ? a) core and mantle b) core and atmosphere c) crust and atmosphere d) mantle and crust
Wednesday, November 27, 2013 at 9:28am
Tuesday, November 26, 2013 at 4:03pm
The answer is "Molecules." A Molecule is an electrically neutral group of two or more atoms held together by chemical bonds. :)
Tuesday, November 26, 2013 at 4:01pm
unless they're looking into heaven, they're not likely to see angels. locations after six months are a full orbital diameter apart, the largest separation possible.
Tuesday, November 26, 2013 at 1:58am
Yes, based on Newton's Third Law, they both exert an equal and opposite force on each other.
Tuesday, October 9, 2012 at 11:13am
8th grade physical sience
Monday, November 17, 2008 at 6:46pm