Which of the following is an example of chemical energy changing into radiant energy?
a)a fireplaces glowing when lighted
b)a plant using sunlight to make food
c)a child on a swing slowing down as she swings upwards
d)a coil of a toaster glowing when the toaster is switched on

D)A coil of a toaster glowing when the toaster is switched on

Explanation:

A coil of a toaster glowing when the toaster is switched on  is an example of chemical energy changing into radiant energy.

The toaster is turning into radiant energy because it is getting warmer and cooking.

Explanation:

The reaction you are looking for is

hydrocarbon + O2 > nCO2 + mH20

in the simplest form.

You have a piece of wood. You burn it. There is going to be a chemical change.

Both heat and light are produced. (radiant energy)

The second best answer is D because you do get radiant energy.

George Wittig was awarded the Nobel Prize in Chemistry in 1979. The crown of his work is the discovery of the alkene synthesis from carbonyl compounds and phosphorus ylides. In his honor, this reaction was later called the Wittig reaction.Wittig found that phosphoric ylides attack the carbonyl group in aldehydes and ketones, creating alkenes, as a result of the double bond between ylide and carbonyl carbon.

For a synthesis of 2-methyl-2-pentene over Wittig reaction as phosphonium ylide we will use triphenyl(propylidene)phosphorane and as carbonyl-containing molecule a propan-2-one (reaction is shown in the picture below).