SUSTANCIAS PURAS Flashcards

1
Q

que propiedades presentan

A

fisicas y qimicas constantes

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2
Q

en que diferenciamos

A

elementos y compuestos

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3
Q

elementos

A

sustancias que no puede descomponerse

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4
Q

compuesto

A

sustancias que puede obtenerse a aprtir de sustancias puras o que se puede descomponerse

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5
Q

abundancia de elementos

A

114 elementos-90naturales, 24artificiales

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6
Q

reacciones quimicas posibles

A

E+E—-C, C—-E+E, C—–E+C, E+C—–C+E, E+C—C, C+E—-C+C

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7
Q

rq no posibles

A

E+E—-E, E—-C

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