Zinc atoms can be converted to Zn2+ ions by I adding the zinc to hydrochloric acid II heating the zinc in air III adding the zinc to cold water AI only BI and II only CII and III only DI , II and III
Question
Zinc atoms can be converted to Zn2+ ions by I adding the zinc to hydrochloric acid II heating the zinc in air III adding the zinc to cold water AI only BI and II only CII and III only DI , II and III
Solution
To convert zinc atoms to Zn2+ ions, there are three possible methods:
I. Adding the zinc to hydrochloric acid II. Heating the zinc in air III. Adding the zinc to cold water
To determine which methods are correct, we need to analyze each option:
Option I: Adding the zinc to hydrochloric acid This method involves combining zinc with hydrochloric acid. The reaction between zinc and hydrochloric acid produces zinc chloride and hydrogen gas. This reaction does indeed convert zinc atoms to Zn2+ ions.
Option II: Heating the zinc in air Heating zinc in air does not directly convert zinc atoms to Zn2+ ions. Instead, it can lead to the formation of zinc oxide (ZnO) through the reaction of zinc with oxygen. However, zinc oxide does not contain Zn2+ ions.
Option III: Adding the zinc to cold water Adding zinc to cold water does not directly convert zinc atoms to Zn2+ ions. Instead, it can lead to the formation of zinc hydroxide (Zn(OH)2) through the reaction of zinc with water. However, zinc hydroxide does not contain Zn2+ ions.
Based on the analysis above, the correct answer is AI only, which means that zinc atoms can be converted to Zn2+ ions by adding the zinc to hydrochloric acid.
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