Pedro wants to create a chemical reaction between oil and water. He adds oil to a beaker of water and notices that the liquids do not mix. He then shakes the beaker and the drops of oil become suspended through the water for a few moments before returning to their separate layers.

No chemical reaction occurred because the oil and water remained the same substances; shaking only spread oil droplets through the water temporarily. The liquids separated into layers again, and no new substances formed. Therefore, the correct choice is “No, because no new substances were formed.”

AI-written and checked against the verified answer.