Geography, 11.02.2020 00:53 newyorkvincetti

If you heat up a bar of iron in a fire until it glows, the light emitted from the iron is caused by ?

a. an increase in the atomic number of the iron atoms
b. a reorganization of protons and neutrons in the atomic nucleus
c. a chemical reaction with oxygen free radicals in the air
d. residual fire that is stuck to the metal
e. high energy electrons dropping back into a lower-energy shell

Answers: 2

Show answers

Other questions on the subject: Geography

Geography, 22.06.2019 16:00, blesskids600

Ineed quickly! which of the following would not be considered an example of the transition of europe into the formation of larger nation-states? a. the hundred years' war b. the unification of italy c. the marriage of isabella and fernando d. the height of feudalism

Answers: 1

continue

Geography, 23.06.2019 16:00, bndkdiwjdjd

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy

Answers: 1

continue

Geography, 23.06.2019 20:20, Janznznz1121

Ano anu ang mga guhit na makikita sa mapa o globo? ibigay ang kuhulugan ng bawat isa

Answers: 2

continue

Geography, 24.06.2019 22:50, ndaha

Ineed the answer for this question. more developed countries (

Answers: 1

continue

You know the right answer?

If you heat up a bar of iron in a fire until it glows, the light emitted from the iron is caused by...