Question

what happens to atoms in a chemical reaction? they turn into energy. they are destroyed. they are changed into atoms of different elements. they are rearranged. question 6 2 pts copper chloride and aluminum react to produce aluminum chloride and copper. which of the following is the correctly balanced chemical equation for this reaction? cucl₂ + al → alcl₃ + cu 3cucl₂ + al → alcl₃ + 2cu 3cucl₂ + 2al → 2alcl₃ + 3cu cucl₂ + 3al → alcl₃ + 2cu

Explanation:

In a chemical reaction, atoms are neither created nor destroyed, nor do they turn into energy or change into atoms of different elements. According to the law of conservation of mass, atoms are rearranged to form new substances. For the reaction of copper - chloride ($CuCl_2$) and aluminum ($Al$) to produce aluminum - chloride ($AlCl_3$) and copper ($Cu$), we balance the equation by ensuring the number of each type of atom is the same on both sides of the equation. The balanced chemical equation is $3CuCl_2+2Al
ightarrow 2AlCl_3 + 3Cu$.

Answer:

For the first question: They are rearranged.
For the second question: $3CuCl_2+2Al
ightarrow 2AlCl_3 + 3Cu$