Changes in which no bonds are broken or formed; ending materials same as the beginning  - Physical Change, Occur when bonds are broken and/or formed between molecules or atoms - Chemical Change , Which law states that: Energy can be transformed but can neither be created nor destroyed; the total quantity of energy in the universe is assumed constant - Law of Conservation of Energy , Study of heat in chemical reaction - Thermochemistry, Give the 3 types of system and describe each - Open system - can exchange mass and energy; Closed system - allows the transfer of energy (heat) but not mass; Isolated system - does not allow the transfer of either mass/energy, Measurement of heat changes - Calorimetry, The sign convention for q: positive for _________ process and negative for _________ process - positive - endothermic; negative - exothermic, What is the formula for calorimetry? - q = ms delta t (final temp-initial temp),

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