Chemistry, 07.07.2019 20:00 Jacobstoltzfus
Will give brainliest! twenty points ! 1. why is a spectrometer important to astronomers? a.) spectrometers measure distances to stars. b.) spectrometers give us data on the light we cannot see with our human eyes. [i think this one might be the answer, but i'm unsure] c.) spectrometers launch telescopes into space. d.) spectrometers are in needed to look at distant stars from earth. 2. which measurement system would we use to measure within the solar system? a.) astronomical unit b.) light year c.) parsec [i think this is the right answer]
Answers: 1
Chemistry, 22.06.2019 16:50
What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume
Answers: 2
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
Chemistry, 23.06.2019 03:00
What do electromagnetic waves carry? how are they produced through which media can they move? where do they transfer energy? what do they not transfer? what do mechanical waves carry? how are they produced? through which media can they move? where do they transfer energy? what do they not transfer?
Answers: 1
Will give brainliest! twenty points ! 1. why is a spectrometer important to astronomers? a.) sp...
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