Question posted by maryschwartz

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Questions Posted by maryschwartz

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$8.00 Closed, closed Chemistry General Chemistry chemistry Electrons and arranging atoms and molecules
1. The formula of the ionic compound formed the two elements 2. The oxidation half-reaction 3. The reduction half-reaction 4. The oxidizing agent 5. The reducing agent The elements... 		Feb. 24, 2009
$5.00 Closed, closed Chemistry General Chemistry Electrons
post a detailed explanation of why your solute is, or is not, soluble in water. Your explanation must be good enough so that it could be used to teach another person. Grammar and sentence structure... 		Mar. 01, 2009
$5.00 Closed, closed Chemistry General Chemistry vitamin C - titration and mass
For each trial (individual titration), 10.00 mL of beverage are titrated. If you were to determine that 0.500 milligrams of vitamin C were in 10.00 mL of beverage, what mass of vitamin C would be... 		Feb. 20, 2009
$5.00 Closed, closed Chemistry General Chemistry Chemistry finding moles
calculate how many moles of hydronium ion are in 1.50 x 10^2 milliliters of solution, and report your answer using correct rules for significant figures. solution 4.10 x 10^-6 M 		Feb. 18, 2009
$4.00 Closed, closed Chemistry General Chemistry more chem stuff
• How much larger is the hydronium ion concentration if a solution of pH = 2 compared with a solution of pH = 6? • Stomach acid, which is hydrochloric acid, has a pH = 2.0. How many moles of... 		Feb. 20, 2009
$1.00 Closed, closed Mathematics General Mathematics ratio
3:50 convert to a decimal 		Jan. 12, 2009
$1.00 Closed, closed Mathematics General Mathematics what is the value of x with this ratio
1:100 ------- x 300 = x 1:10 what is the value of x 		Jan. 12, 2009
$1.00 Closed, closed Chemistry General Chemistry Chemistry
What is the formula for the chemimistry compound Carbon Monoxide? 		Feb. 03, 2009
$1.00 Closed, closed Chemistry General Chemistry chemistry
What is the number of molecules in 1.50 moles in 28.01 u molecular mass of CO? 		Feb. 03, 2009
$1.00 Closed, closed Chemistry General Chemistry conversion factoring
change 0.0260 dm3 to ml   change 291 mg to dg 		Oct. 10, 2009