The temperature of hot coffee drops upon addition of some cold milk. Is this a chemical change or a physical change

Physical change

Explanation:

Its thermodynamics. There is a change in heat energy. Any physical changes are temperature, shape, size or location

Any chemical changes are burning, spoiling, or decaying

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under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?