Answer:
Explanation:
Hello,
In this case, for the given reaction:
We find a 1:2 molar ratio between the acid and the base respectively, for that reason, at the equivalence point we find:
That in terms of concentrations and volumes we can compute the concentration of the acid solution:
Best regards.
<u>Answer:</u> The net ionic equation is written below.
<u>Explanation:</u>
Net ionic equation of any reaction does not include any spectator ions.
Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.
The chemical equation for the reaction of iron and copper (II) sulfate is given as:
Ionic form of the above equation follows:
As, sulfate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.
The net ionic equation for the above reaction follows:
Hence, the net ionic equation is written above.
Answer:
The second choice: physical change because even though gas formation was observed, the water was undergoing a state change, which means that its original properties are preserved
(WAS ALREADY ANSWERED PREVIOUSLY)
An ion must be shaped when a neutral atom picks up or loses electrons.
Since electrons convey a negative charge, picking up electrons will bring about the formation of a contrarily charged ion, or anion. Thus, losing electrons will bring about the formation of an emphatically charged ion, or cation.
For your situation, the sulfide anion, S^2−1, conveys a(2−) negative charge, which must imply that it picked up electrons.
All the more particularly, it picked up 2 electrons. A neutral sulfur atom has an atomic number equivalent to 16, which implies that it has 16 protons inside its nucleus and 16 electrons encompassing its nucleus.
For every electron picked up, the ion's general charge diminishes by 1 unit, which additionally affirms the way that the unbiased sulfur atom picked up 2 electrons to get the (2−) charge.
