kiransuriya kiransuriya

28-08-2021
Chemistry

contestada

1. . Are these physical or chemical changes? a) slicing cheese
b) acid reacting with baking soda to make carbon dioxide
c) emptying a gas cylinder of air
d) cooking eggs

Respuesta :

eliaszainabbashir eliaszainabbashir

28-08-2021

Answer:

physical change

slicing cheese

acid with baking soda

.......cookoing eggs

Answer Link

rahmahatim02 rahmahatim02

28-08-2021

A physical change is
-temporary
-reversible
-when no new substance is formed
A chemical change is
-permanent
- irreversible
-where a new substance is formed

Answers:
a) Physical
b) Chemical
c) physical
d) chemical

Answer Link

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