Answer:
Potassium is a<u> </u><u>more </u><u>reactive </u>metal than zinc
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Answer:
Examples of substances insoluble in water: oil, acetone, ether
Explanation:
Such examples of substances are non-polar and do not dissolve in water (polar compound). The classic example is oil floating in water (this happens because oil has a lower density than water).
Answer:increase In kinetic energy of molecules
Explanation:increase in kinetic energy of molecules