Elements donate 2 electron to produce a cation with a 2+ charge
1 answer:
Answer: alkaline earth metals (group-IIA)
Explanation:
The element which donates the electron is known as electropositive element and forms a positively charged ion called as cation. The element which accepts the electrons is known as electronegative element and forms a negatively charged ion called as anion.
Alkaline earth metals donate 2 valence electrons to acquire noble gas configuration.
For example: Berrylium is the first alkaline earth metal with atomic number of 4 and thus has 4 electrons
Electronic configuration of berrylium:
Berrylium atom will loose two electrons to gain noble gas configuration and form berrylium cation with +2 charge.
Thus Elements donate 2 electron to produce a cation with a 2+ charge are alkaline earth metals.
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Sucrose + H+ = fructose + glucose
The rate law of reaction is R = k [H+] [sucorse]
H+ = 0.01 M
[sucrose] = 1.0 M
R = k [0.01M] [1.0 M]
The rate of the reaction when [sucrose] and both are changed to 0.1 M = R'
R' = [0.1M] [0.1M]
2 / 1
R' = 1 x R
Thus, the rate change will be increased by 1.
To learn more about the acidic solutions, refer to the below link:
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