Halogens are good leaving groups in substitution reactions because leaving group ability is directly related to their being:____
1 answer:
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Answer:
Explanation:
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In this case, according to the required half-reaction, we start by setting it up from bismuth (V) oxide ion to bismuth (III) ion:
Thus, next realize that the oxidation state of Bi in BiO3^- is 5+ because oxygen is 2- (-2*3+x=-1;x=-1+6;x=+5), so we obtain:
Thereafter, we realize three water molecules are needed on the right in order to balance the oxygens and consequently 6 hydrogen atoms on the left to balance hydrogen:
Now, since the balance is is basic media, we add six molecules of hydroxide ions in order to produce water with the hydrogen ones:
Then, we accommodate the waters to obtain:
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(4) zinc
Explanation:
Given parameters:
Mass of the sample = 10g
Condition = STP
Unknown:
Element with the least volume = ?
Solution:
The number of moles of substance as STP can be derived using the equation below;
Volume of substance = number of moles x 22.4
Number of moles =
since mass = 10g
Number of moles of Al = = 0.37mole
Number of moles of Ti = = 0.29mole
number of moles of Mg = = 0.47mole
Number of moles of Zn = = 0.15mole
Zinc has the least number moles and it will have the lowest volume at STP because the volume directly proportional to number of moles.
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Number of moles brainly.com/question/1841136
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