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Chemistry, 16.01.2021 22:00 916837

1) Indicar v o f, en caso de ser falso cambia la palabra subrayada por la correcta. a) Los cambios físicos ocurren cuando las sustancias iniciales = sustancias finales.

b) Los cambios físicos ocurren cuando las sustancias iniciales = sustancias finales.

c) Cuando se quema un papel se produce un cambio químico.

d) Al fundir el oro para hacer un anillo ocurre un cambio químico.

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1) Indicar v o f, en caso de ser falso cambia la palabra subrayada por la correcta. a) Los cambios...

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