Chemistry
Chemistry, 12.10.2020 01:01, skateboardb718

Why is an absorption spectrum especially useful for astronomers? O It helped astronomers to understand the rainbows we see on Earth after storms
O It shows that the stars are transparent; we can see right through them
O It has bright lines in it which allow astronomers to determine how bright the star is
O It has dark lines in it that allow astronomers to determine what elements are in the
star

answer
Answers: 3

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 02:40, hardwick744
Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.
Answers: 2
image
Chemistry, 22.06.2019 10:10, andersonemma2222
How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?
Answers: 1
image
Chemistry, 22.06.2019 20:00, edamite12
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
image
Chemistry, 22.06.2019 20:30, hsbhxsb
We are hoping to create 5.72 grams of glucose. the plant was given 4.75 liters of co2 and 2.81 g of h20. which reactant was the limiting reagent? how much excess mass did we have of the other reactant?
Answers: 3
Do you know the correct answer?
Why is an absorption spectrum especially useful for astronomers? O It helped astronomers to underst...

Questions in other subjects:

Konu
Mathematics, 20.04.2021 15:30
Konu
Mathematics, 20.04.2021 15:30