1) Indicar v o f, en caso de ser falso cambia la palabra subrayada por la correcta.
a) Los cambios fĂsicos ocurren cuando las sustancias iniciales = sustancias finales.
b) Los cambios fĂsicos ocurren cuando las sustancias iniciales = sustancias finales.
c) Cuando se quema un papel se produce un cambio quĂmico.
d) Al fundir el oro para hacer un anillo ocurre un cambio quĂmico.
Answers: 3
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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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