science chemistry 1 Word Scramble
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Question | Answer |
physical changes alter form or | appearance |
pc do physical changes change into another substance | no |
pc they can | bend crush and tear |
pc they are states of | matter |
chemical changes change the | composition |
cc - atoms are | rearranged |
cc they form new | compounds and substances |
cc they burn and | rust |
reactants | substances that undergo the change |
products | new substance |
chemical reactions involve | changes in properties and energy that can be observed |
the only evidence of a chemical reaction is that | one or more new substance is formed |
precipitate | solid to liquid |
gas | bubbles |
color | change |
exothermic rxn | energy is released |
endothermic rxn | energy is required |
chemical equations use chemical formulas to | to show a rxn |
chemical formulas are a combination of letter symbols | to form a compound |
chemical equations start and | end |
law of conservation of mass | matter cannot be created or destroyed |
synthesis | taking two things and making them into one |
decomposition | to break apart |
replacement single | trade places |
replacement double | flip places |
Created by:
kerrie.reed
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