The answer is A. carbon dioxide and water
Answer:
H-1 solid Ne-10 Liquid
He-2 Solid Na-11 Liquid
Li-3 Liquid to Gas Mg-12 Gas
Be-4 Gas Al-13 Gas
B-5 Gas Si-14 Gas
C-6 Gas P-15 Liquid to Gas
N-7 Liquid S-16 Liquid to Gas
O-8 Liquid CI-17 Liquid
F-9 Liquid Ar-18 Liquid
>>>>>>>>>>>>>> K-19 Gas
Ca-20 Gas
Molar mass KI = 166.0028 g/mol and Pbl₂ = 461.0089 g/mol
<span>2 Kl + Pb(NO</span>₃<span>)</span>₂<span> ------> 2 KNO</span>₃<span> + Pbl</span>₂<span>
</span>
2 x 166.0028 g ---------> 461.0089 g
? g KI -------------> 1.2 g
Mass KI = 1.2 x 2 x 166.0028 / 461.0089
Mass KI = 398.40672 / 461.0089
Mass KI = 0.86 g
Answer B
hope this helps!
Answer:
mass number
Explanation: its the sum of the protons an neutrons in the nucleus
Halogens
Explanation:
Halogens are a group of non-metals located in the seventh group on the periodic table. The will only gain one electron during a chemical reaction.
- Halogens have a seven electrons in their outermost shell.
- To complete the number of electrons in this shell, they need to gain an additional electron.
- One more electron makes the halogen similar to the corresponding noble gas which is very stable.
- Halogens are very reactive groups of elements and are highly electronegative.
- They have a high affinity for electrons.
- These elements are fluorine, chlorine, bromine, iodine and Astatine.
learn more:
Halogens brainly.com/question/6324347
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