Question

Fill in the blanks,
1.
All irreversible changes bring a
change in a substance.
2.
A change, in which the substance produced can get back to the original form,
is called a
change.
3.
Bending of an iron rod is a
change.
4.
Burning of fuel is a
iron is a
chemical change, whereas rusting of
chemical change.
properties are
5.
In chemical change, new substances with
formed.​

Answer 1

Answer:

1. permanent

2. reversible

3. physical

4.

5. entirely different properties

Answer 2

1. permanent

2. reversible

3.physical

4. slow, fast

5.different