Question

consider the following balanced chemical equation: which of the following statements best describes what is occurring during this reaction? 2al(s) + 3cucl₂(aq) → 2alcl₃(aq) + 3cu(s) aluminum ions are replacing copper atoms from solution. aluminum atoms are replacing copper ions from solution. copper ions are replacing aluminum atoms from solution. copper atoms are replacing aluminum ions from solution. when potassium (k) reacts with water (h₂o), it undergoes a vigorous and exothermic reaction, typical of alkali metals. what are the products of the reaction? k2o + h2 koh + h2 koh+ o2

Explanation:

1. For the reaction $2Al(s)+3CuCl_2(aq)\to2AlCl_3(aq) + 3Cu(s)$, aluminum is a more reactive metal than copper. In a single - displacement reaction like this, aluminum atoms (in solid state) lose electrons and become aluminum ions in solution, while copper ions in solution gain electrons and become copper atoms (solid). So, aluminum atoms are replacing copper ions from solution.
2. When potassium reacts with water, the chemical reaction is $2K(s)+2H_2O(l)\to2KOH(aq)+H_2(g)$. Potassium displaces hydrogen from water to form potassium hydroxide and hydrogen gas.

Answer:

1. Aluminum atoms are replacing copper ions from solution.
2. KOH + H2