The element necissary for an eye is plain vision, oxygen,
Answer:
The r.a.m. value is used to determine how many isotopes an element has.
Explanation:
Answer:
Indeed, most ionic compounds contain polyatomic ions. Well-known examples are sodium hydroxide (NaOH) with OH- as the polyatomic anion, calcium carbonate (CaCO3), and ammonium nitrate (NH4NO3), which contains two polyatomic ions: NH+ and NO3-.
Explanation:
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