Question

name:per:35a: classifying changes skills check1. a student lights a candle.smoke is produced and solid waxbecomes a liquid.classify this change:a. physical change onlyb. chemical change onlyc. both physical and chemicalchanges have occurred.2. justify your answer.what evidence supports your choice?

Explanation:

1. Cambio físico: La cera sólida se convierte en líquida, solo cambia su estado físico sin modificar su composición química.
2. Cambio químico: Al encender la vela, la cera se quema, reaccionando con el oxígeno del aire para producir humo (compuestos como dióxido de carbono y partículas de carbono), lo que genera una nueva sustancia.

Answer:

1. C. Both physical and chemical changes have occurred.
2. The solid wax melting into liquid wax is a physical change (only state of matter changes, no new substance formed). The candle burning to produce smoke is a chemical change (new substances like carbon particles and carbon dioxide are created through combustion).