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. did pedro succeed in creating a chemical change? (a)-yes, because the oil was evenly suspended.(b-)yes, because the solution was permanently changed.(c)-no, because the oil only briefly mixed with the water. d)no, because no new substances were formed.

The answer is (d) - no chemical change because no new substances were formed

Explanation:

From the description is it likely that no chemical changes occurred because the two-phase system went back to looking just as it did before. Chemical reactions between two immiscible phases (like oil and water) can occur but it is normally very slow at room temperature and hindered because they cannot come into good content with the other material

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

a.   mass number from atomic number