asked 61.6k views
1 vote
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​

asked
User Almaju
by
8.3k points

2 Answers

2 votes
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
answered
User Zachbugay
by
8.3k points
2 votes

Answer:

physical change

slicing cheese

acid with baking soda

.......cookoing eggs

answered
User Astrofrog
by
7.9k points
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