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Is it fair for the industrialized nations to expect that all nations, including the less developed ones, restrict their use of fossil fuels and therefore participate in future disadvantages without obtaining the benefits of cheap energy or do you think the industrialized nations which have enjoyed the past benefits, should accept most of the future costs?
a compound is found to contain 39.12 carbon 8.772 hydrogen and 52.11 oxygen by weight. what is the empirical
Describe the 3 dimensional shape of the central atoms of sugar using VSEPR. Include the bond angles.
Which expression represents the percent by mass of nitrogen in NH4NO3. A) 14 g N/80 g NH NO 100% B) 28 g N/80 g NH NO 100% C) 80 g NH NO /14 g N 100% D) 80 g NH NO /28 g N 100%
A first order reaction has activation energy of 50.1 kJ/mol as well as a frequency factor Arrhenius constant of 8.27 x 1010 sec -1. Compute the rate constant at 26oC. Utilize the nearest whole number.
State the organic products of each of the following reactions show the structures of the reactants as well as products. If two stereoisomers are formed, demonstrate both and label all sterogenic centres R or S as appropriate.
Using the isothermal transformation diagram for an iron-carbon alloy of eutectoid composition, specify the nature of the final microstructure (in terms of microconstituents present and approximate percentages
Calculate the standard emf for each of the following reactions:a)H2(g) + F2(g)---> 2H+(aq) + 2F-(aq)
a solution of ethanol c2h5oh in water is prepared by dissolving 90.0 ml of ethanol density 0.79 gcm3 in enough water
Determine the reaction, Fe2O3 + 6 HCl => 2 FeCl3 + 3 H2O. Explain how many moles of H2O will be made from 42.9 grams of HCl
Suppose 1500 J of heat energy are put into a sample of liquid water at 25 degrees celsius, and the final temperature of the water is 75 degrees celsius. How many grams of water are present?
What mass of helium was placed in balloon. What altitude does the balloon reach
What is the wavelength of light emitted when an electron in a hydrogen atom undergoes a transition from energy level n=4 to n=2?
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