In a kinetic model explain why a metal rod expands when heated​

Heat expansion

Explanation:

Heat expansion is when air bubbles get trapped in a chemical while heating,the bubble gets bigger and the host expands,therefore causing heat expansion.

When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small.

a. by accepting the election of president abraham lincoln in 1860 and convincing other southern states to do the same

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