The following compound can be prepared by a Claisen condensation followed by saponification and decarboxylation. Propose a structural formula for the ethyl ester precursor that undergoes a Claisen condensation.

there is none because earth is stationary and flat.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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