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Goshia [24]
3 years ago
14

Which element family is all 2-

Chemistry
1 answer:
Zielflug [23.3K]3 years ago
4 0

Answer:

Alkaline Earth Metals

Explanation:

:)

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2HgO O2 + 2Hg
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Answer:

33.5 grams of oxygen will be produced

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7 0
2 years ago
What is 694,563,239 rounded to the nearest thousand
lina2011 [118]
694,563,239 rounded to the nearest thousand is 694,563.
 
It's because the first digit from the right is for ones, second for tens, third for hundreds and fourth for thousands and that's the one that we should take a closer look at. You can round it either to 3 or 4, depends on the digit of hundreds. In this case 3239 is clearly closer to 3000 than 4000, that's why we round it to 694,563, not 694,564.
6 0
2 years ago
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What are the transition metals
Valentin [98]
Theyre the big bunched up group in the middle of the periodic table
8 0
2 years ago
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Which activity might help to increase the validity of this experiment?
MArishka [77]
A should be the answer because the more you test an experiment the more data you have to rely on changing the experiment would cause you to have different outcomes making the results different and unreliable so B, C, and D is not going to be the answer Hope this helps
5 0
2 years ago
What is the wavelength (in nm) of the least energetic spectral line in the visible series of the H atom?
grin007 [14]

Answer:

Brackett Series (n = 4)

Explanation:

The least energetic line of Hydrogen atom lies in <em>Brackett Series </em>when n = 4 because these are least energetic, have longer wavelengths and lies in Infrared region of spectrum.  No traces of <em>Pfund series </em>are formed by H=atoms.

8 0
2 years ago
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