For which of the following reactions is it important that the species collide with the correct orientation?

Question

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Both reactions involve the formation of a covalent bond, which requires the correct orientation of the reacting species in order for the bond to form properly. In A, the two H₂ molecules need to collide with the oxygen molecule in the correct orientation to form the H2₂O product. In B, the HCl and H₂O molecules need to collide in the correct orientation so that the hydrogen (H) from HCl and the hydroxide (OH) from H₂O can bond together to form water (H2O), leaving behind a salt (H₂O⁺ and Cl-).

For Which of the Following Reactions Is It Important That