Friday
December 13, 2013

# Posts by Sylvia

Total # Posts: 113

algebra
need help with fractions

Chemistry
What effect do each of these have on the freezing point of the solvent? a. a nonvolatile solute that dissociates in the solvent b. a volatile solute that does not dissociate c. two solutes that react according to the equation: A+B---> C Please explain why.

Chemistry
If you place an aqueous solutions of CuBr2 (which is then Cu(H2O)4 2+) with solid KBr added to it in a hot water bath what do you observe and why?

Chemistry
If you add Na2CO3 and AgNO3 together in a test tube what exactly would you observe and what would be the equation for the equilibrium system? If you then add HNO3 to the solution what exactly would you observe and what would be the equation for that reaction?

Writing Essays
Im writing an essay and i have to include quotes with citations. if i wanted to include this quote: Dr. David M. Kent, founder of Lifestyle Lift, states, “It warms my heart to see two of our surgeons take part in such a noble cause." What would be the citation if i g...

chem lab
In a pottasium permanganate and oxalic acid titration..why do we add sulfuric acid to the oxalic acid solution and then boil it before titrating??

chemistry
Why do we use a boiling solution when carrying out oxidation- reduction titration?

chemistry
when aluminum metal reacts with iron (III) oxide to form aluminum oxide and iron metal, 429.6 kJ of heat are given off for each mole of aluminum metal consumed, under constant pressure and standard conditions. What is the correct value for the standard enthalpy of reaction in ...

calculus
yeah thats what i mean...but u cant plug in zero because it is not normal at the origin only goes through it..n the derivative is addition...

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