1) The inner zone of a candle flame is the hottest part. (True or False) a) True b) False 2) What is the primary component of a flame that gives it color? a) Oxygen b) Carbon dioxide c) Excited atoms and molecules d) Water vapor 3) A luminous flame produces less heat than a non-luminous flame. a) True b) False 4) Flames are always visible to the human eye. a) True b) False

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