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Chemistry Test

QuestionAnswer
3 different types of chemical reactions? decomposition, replacement, and synthesis
synthesis? A + B ---> AB
difference between physical and chemical change? physical is reversible, always the same compound, chemical's atoms and element have changed
decomposition?
5 proofs of a chemical change? gas, temperature , color property, property change, precipitation
what can affect the speed of a chemical change? catalysts
exothermic reaction? reaction which releases heat ( gets hotter)
endothermic reaction? reaction which absorbs heat (gets colder(
activation energy? amount of energy needed to get a reaction started
catalyst? speeds up a reaction
inhibitor? slows down a reaction
law of conservation of mass? states that the mass of substances in a closed system will remain constant, no matter what processes are acting inside the system.
according to conservation of mass law , unbalanced? doesn't observe law of conservation of mass
according to conservation of mass law, balanced? observes the law of conservation of mass
Created by: mollypainter
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