Chemistry, 11.11.2020 21:10 jonellelewis2897
Which 2 elements have 2 valance electrons and are in the 4 periods of the periodic table.
1.sodium
2.Carbon
3.Berylirium
4.Calcium
Answers: 2
Chemistry, 21.06.2019 15:00
Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)
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Chemistry, 22.06.2019 00:30
If 3.00 g of titanium metal is reacted with 6.00 g of chlorine gas, cl2, to form 7.7 g of titanium (iv) chloride in a combination reaction, what is the percent yield of the product?
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Chemistry, 22.06.2019 03:00
In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?
Answers: 3
Which 2 elements have 2 valance electrons and are in the 4 periods of the periodic table.
1.sodium<...
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