Thursday
December 12, 2013

# Posts by Vicky

Total # Posts: 196

life orientation
Ways in which the human or environmenta l problem impact on the community

Biology
GENETICS PRACTICE PROBLEMS Worth 10 points each problem is either right or wrong 1. In humans, assume that brown eyes (B) are dominant over blue eyes (b). A blue eyed man, both of whose parents were brown eyed, marries a brown eyed woman whose father was brown eyed and whose m...

Chemistry
Im not getting the right value.I get 1.24*10^-4 and thats not correct.

Chemistry
Well, they also gave this information: A reaction has a rate constant of 1.24×10−4 at 25 C and 0.228 at 79 C.

Chemistry
Well, they also gave this information: A reaction has a rate constant of 1.24×10−4 at 25 C and 0.228 at 79 C.

Chemistry
i have no idea how to apply this formula as we can only use one temperature and this requires the use of two.

Chemistry
What is the value of the rate constant at 17 degrees celsius? The Ea = 122 kJ/mol I know I have to use ln k = ln A - Ea/RT.. but I don't know how to calculate it without known ln A and how do you find ln A Thank you for your help!

physical science
A rectangular container measuring 16cm times 46cm times 67 cm is filled with water what is the mass of this volume of water in kilograms and grams? (take the density of water to be 1000 kg/m cube

science
i need a arostic poem on w e g e n e r and h e s s

organic chemistry
calculate the amount of isopentyl acetate that should be present in the reaction mixture at equilibrium, based on the quantities of starting materials you used and a value of 4.2 for the equilibrium costant

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