Answer: c. +4
Explanation:
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
![Mn:25:1s^22s^22p^63s^23p^64s^23d^{5}](https://tex.z-dn.net/?f=Mn%3A25%3A1s%5E22s%5E22p%5E63s%5E23p%5E64s%5E23d%5E%7B5%7D)
![Mn^{4+}:21:1s^22s^22p^63s^23p^63d^1](https://tex.z-dn.net/?f=Mn%5E%7B4%2B%7D%3A21%3A1s%5E22s%5E22p%5E63s%5E23p%5E63d%5E1)
![O:8:1s^22s^22p^4](https://tex.z-dn.net/?f=O%3A8%3A1s%5E22s%5E22p%5E4)
![O^{2-}:10:1s^22s^22p^6](https://tex.z-dn.net/?f=O%5E%7B2-%7D%3A10%3A1s%5E22s%5E22p%5E6)
Here manganese is having an oxidation state of +4 called as cation and oxygen forms an anion with oxidation state of -2. Thus they combine and their oxidation states are exchanged to give
which written in simplest whole number ratios to give neutral ![MnO_2](https://tex.z-dn.net/?f=MnO_2)
Explanation:
The molar mass of the compounds are incorrect
Since the molecules of a gas are constantly in motion, moving and hitting other gas molecules in all directions of the enclosed container, the molecules transfer a portion of energy through the interaction of other gas particles as they hit, but then bounce off.
C6H12O6 molar mass: 180.15768 g
solute: sugar
molarity = moles of solute / liters of solution
Jones Soda:
33 g / 180.15768 g = 0.18 moles C6H12O6
M = 0.18 g / 0.355 L
M = 0.52
Sierra Mist:
62 g / 180.15768 g = 0.34 moles C6H12O6
M = 0.34 g / 0.591 L
M = 0.58
Sienna Mist has a higher molarity and is more concentrated.
The tea was no longer hot or (brewed) so the 5th didn’t dissolve like the others because the tea was hot or warm enough anymore it cooled down. So the sugar won’t dissolve no more.