On page 106 of the workbook are two oxidation-reduction reactions. We discussed the first one (KClO3 and H4N2) and determined the oxidizing agent and the reducing agent as well as which substance was oxidized and which was reduced. There is an example in the text (example 3.9) that does this as well. This quiz question asks you to do this for the second reaction on page 106. Group of answer choices HNO2 is the reducing agent and it is reduced while CrO42- is the oxidizing agent and it is oxidized. HNO2 is the oxidizing agent and it is oxidized while CrO42- is the reducing agent and it is reduced. HNO2 is the oxidizing agent and it is reduced while CrO42- is the reducing agent and it is oxidized. HNO2 is the reducing agent and it is oxidized while CrO42- is the oxidizing agent and it is reduced.

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

What is the work done by the electric force to move a 1 c charge from a to b?