<h2>
Answer:</h2>
Hydroxide ions.
<h2>
Explanation:</h2>
- When base reacts with water they form hydroxide ion.
- For example, NH₃ + H₂O ----------> NH₄⁺ + OH⁻
(Ammonia) (Water) (Ammonium) (Hydroxide ion).
- In case of strong and week base, generally weak bases partially reacts with water to produce hydroxide ions. Whereas strong base completely reacts with water to produce hydroxide ions And the reaction between a strong acid and a strong base produces salt and water and reaction is called neutralization reaction as both acid and base get neutralized.
Result: On reaction of base with water gives hydroxide ion.
Heavily compacted soils<span> contain few large pores and have a reduced rate of both water infiltration and drainage from the </span>compacted<span> layer.</span>
Answer:
Figure 1
Explanation:
In this case, we have to ester with a <u>"malonic synthesis"</u> in which we have to add a strong (ethoxide) to produce an enolate ion that would form a new C-C bond with an alkyl halide (ethyl bromide and bromo pentane). Then a <u>"nucleophilic acyl substitution reaction"</u> takes place to add thiourea, in this step two ethanol groups are eliminated to form a cyclic structure. Finally, an "<u>elimination reaction"</u> happen by the addition of sodium hydroxide generating a double bond and a negative charge in the sulfur atom that is neutralized with the positive charge of sodium.
See figure 1 for the total mechanism
I hope it helps!
Answer:
option c is correct answer.
during alpha decay mass of daughter atom is 4 unit less than its parent atom and its atomic number is 2 unit less than its parent atom.
Therefore, option c is answer.