Chemistry, 18.10.2019 04:30, katiebotts18
All of the following are reasons why astronomers have difficulty looking at distant stars except:
a. some stars are so far away, even the best telescopes are not powerful enough.
b. they don't understand how redshift affects stars.
c. there is a lot of gas and dust in the atmosphere that distorts the light coming from stars.
d. there is a lot of light pollution on earth.
Answers: 1
Chemistry, 21.06.2019 16:20, kingsqueen883
Consider the two electron arrangements for neutral atoms a and b. are atoms a and b the same element? a - 1s2, 2s2, 2p6, 3s1 b - 1s2, 2s2, 2p6, 5s1
Answers: 3
Chemistry, 22.06.2019 21:00, melissalopez12
Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point
Answers: 1
Chemistry, 23.06.2019 01:30, Sonicawesomeness
Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .
Answers: 2
All of the following are reasons why astronomers have difficulty looking at distant stars except: <...
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