Wednesday
July 30, 2014

Posts by Sylvia


Total # Posts: 115

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...

calculus
find an equation for a line that is normal to the graph y=e^x*x and goes through the origin.

chemistry
how do you write the formula for an oxoacid..for example bromic acid?

calculus
A rectangle is to be inscribed under the arch of the curve y=4cos(.5x) from x=-pi to x=pi. What are the dimensions of the rectanlge with the largest area and what is the largest area? please explain.

calculus
its not just cosx...its cosx=x

calculus
the equation cosx=x has a solution in what interval?...the answer is given as [0,pi/2] can someone please explain why?? thnks

5TH GRADE SCIENCE
what 2 characteristics do earth and moon share. have not atmostphere and rotate on an axis rotate on an axis and revolve around a larger body revolve arounda larger body and have seasons have season and a solid surface

chemistry
will the anhydrous mass be less as well?

chemistry
In the experiment, a hydrate is heated to form an anhydrate. The masses of the before and after are measured and the percent of the water in the hydrate is calculated. If some of the hydrate spatters out of the crucible and isnt noticed, how will this affect the calculated per...

com 220
identify example of bias fallacies and specific rhetorical devices in the speech how did the speacher address arguments and counter arguments ? were the speacher's argument effective explain your answers.

english
help unscramble lesfat

History
Thank for your help Ms. Sue. I do not have anything written down at the moment.

History
Critically analyze Greek and Rome philosophical, political and social contirbution to contemporary western civilization

Health
Is giardiasis transmitted through direct and indirect contact with infected fecal material or by touching the moist lining of the eyes and nose? Isn't it transmitted through direct and indirect contact with infected fecal matter? http://www.cdc.gov/Ncidod/dpd/parasites/gia...

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