The phlogiston theory was accepted until the 18th century when lavoisier proved that combustion requires a gas that has mass phologistion is considered

The infrared (ir) and the ultraviolet(uv) represent the two extremities of the visible spectrum (400-700nm). while ir represents electromagnetic radiation with wavelengths longer than those of visible light, uv represents wavelengths shorter than visible light

Processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.

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