The color changes to a blue green color because of the acidity/pH in water. Example is the statue of liberty
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Explanation:
The given cation:
(Rf₂Al₂F₃)³⁺
The oxidation number gives the extent to which a specie is oxidized in a reaction.
This number is assigned based on some rules:
- Elements in combined state whose atoms combines with themselves have an oxidation number of zero.
- The charge carried on simple ions gives their oxidation number.
- Algebraic sum of all the oxidation numbers of atoms in neutral compound is zero. In an ion with more than one kind of atom, the charge on it is the oxidation number.
for the specie given;
Known:
oxidation number of Al = +3
F = -1
charge = +3
let the oxidation number of Rf = k
2k + 2(3) + 3(-1) = +3
2k + 6 - 3 = 3
2k = 0
k = 0
The oxidation state of rutherfodium is 0
learn more:
Oxidation state brainly.com/question/10017129
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Answer: Part 1: The reaction is considered as replacement reaction and produce preciptate.
Part 2: Due to Mg is more active than Al.
Explanation:
Part 1: the reaction is replacement reaction due to the ions is replaced with each other as this equation shows:
MgCl2 + Na2CO3 → MgCO3 + 2NaCl
and MgCO3 is a white precipitate.
Part 2:
Al reacts with CuCl2 because Al is more active than Cu.
Al can not react with MgCl2 because Mg is more active than Al.
Answer:
Explanation:
Hello,
In this case, given the molality of the solution which is 2.88 m (mol/kg) we can compute the moles of sodium hydroxide that are dissolved in the 232 grams of water (0.232 kg) as follows:
Then, by using the molar mass of sodium hydroxide we compute the grams:
Regards.