Atomic mass. Which is the number of protons and neutrons combined.
Answer:
B.Add acid to water,not water to acid
Explanation:
they should not be mixed
Answer:
B as all the forces cancel out
Explanation:
20-20=0
25-25=0
D. quantitative data can be recorded.
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.
