ocre
This page lists questions and answers that were posted by visitors named ocre.
Questions
The following questions were asked by visitors named ocre.
Don't know where to begin. 1) A thermally activated process (a reaction) takes four minutes at 811°C. How long will it take (in minutes) at 748°C if the activation energy is 150 kJ/mol?
10 years ago
Uranium metal can be produced by reaction of uranium tetrafluoride (UF4) with calcium metal (Ca). The by-product of this reaction is calcium fluoride (CaF2). The reactor is charged with 292.0 kg of UF4 and 47.0 kg of calcium. Assume that the reaction goes...
10 years ago
1)Which of the following single bonds has the greatest bond energy? B-F B-Cl B-I B-Br 2)What is the % ionicity of the bond you chose above? (answer in full percent, not a fraction) 3)What is the % ionicity of the weakest single bond above? (answer in full...
10 years ago
A current of 8.959 milliamps (10-3 A) is measured flowing through a tungsten wire of diameter 0.1 mm and 9 cm long when 1.7 mV is applied. What is the resistivity of tungsten? Express your answer in ohm-m.
10 years ago
Answers
The following answers were posted by visitors named ocre.
but that get with this?????
10 years ago
yes, that formula I use for this
10 years ago
If is limit what a reaction with reagent and excess but don't know how to start this exercise, please help me
10 years ago
the response must express it in minutes and I don't know where it will go out if what I get is a constant I am grateful can collaborate me
10 years ago
????? don't understand the that say
10 years ago