Chemistry, 28.10.2019 22:31 josephvcarter
The labels on a shipment of the five chemicals a-e were washed off by accident when the delivery truck went through a truckwash with the doors open. a clever student took infrared spectra of each of the resulting unknowns. unknown #1 had a strong, broad ir absorption at 3400−3600 cm−1, and no absorptions between 1600 and 2900 cm−1. unknown #2 had a strong absorption at 1680 cm−1 and no absorptions above 3100 cm−1. structure a is a cyclic ketone. structure b is an alcohol bonded to a ring. structure c is an enone, which is a carbonyl bonded to an alkene. structure d contains both an amide and an alcohol. structure e is an ester. what is unknown #1
Answers: 1
Chemistry, 20.06.2019 18:04
Brad and his family like to go camping. they always take a gas lantern with them. the lantern can take fiuels but always puts out the same amount of light. brad has two different kinds of fuel for the lantern. how can he figure out which kind of fuel has more chemical energy that the lantern can turn into light? measure the brightness of the lantern using each kind of fuel by comparing it to the full moon. g measure the volume of the containers of fuel. measure how long the lantern stays lit on a fixed amount of fuel. measure the mass of each container of fuel using a balance scale. answer 12
Answers: 1
Chemistry, 21.06.2019 21:30
Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water
Answers: 1
Chemistry, 22.06.2019 11:50
If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.
Answers: 3
The labels on a shipment of the five chemicals a-e were washed off by accident when the delivery tru...
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