Answer:
Elements in the same group have the same number of valence electrons.
Explanation: Science.
Answer:
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Explanation:
(also called Observational Error) is the difference between a measured quantity and its true value. It includes random error
The last step in performing a titration is <span>determining the concentration of an unknown base. So the answer to your question is letter B. The concentration maybe either an acid or base. The other choices are the earlier procedures in performing titration.</span>
