Answer:
Explanation:
By definition, <em>half neutralization</em> is the point at which half of the acid has been neutralized.
The neutralization reaction that you are studying is the acid-base reaction:
- HCl (aq) + NaOH (aq) → NaCl(aq) + H₂O (aq)
Then, since the starting molarity of the acid (HCl) is 0.2 M, you just need to find half of that concentration:
- Half molarity = M / 2 = 0.2 M / 2 = 0.1 M
So, the answer is the first choice: a. 0.1 M.
Many scientist use dichotomous key
Answer:
1) <em>(There must've been a diagram?)</em>
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2) Combustion, for example, say fossil fuels, release carbon dioxide, which is a greenhouse gas, contributing to global warming.( Well, greenhouse gases affect the ozone layer. )
3) When plants and animals die, they decompose and release nitrogen in the form of ammonia.