How are chemical and physical changes different on a molecular level? chemical changes involve the breaking of bonds in molecules. chemical changes do not affect bonding between atoms. physical changes do not involve molecules. physical changes cause new molecules to form.

A Chemical changes involve the breaking of bonds in molecules.

Explanation: Because in a chemical change it breaks bonds of molecules and the other ones dont look right and this is the only statement that is true.

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explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

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