Asmall atomic bomb releases energy equivalent to the detonation of 14,000 tons of tnt; a ton of tnt releases 4 ? 109 j of energy when exploded. using 2 ? 1013 j/mol as the energy released by fission of 235u, what mass of 235u undergoes fission in this atomic bomb?

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.