Question

B, Fill in the blankes.
1. Physical changes are
and can be
by changing the conditions.
2. Chemical changes cannot be reversed by simple
methods
3. A new product formed during a chemical change is completely different from original substance in
and properties.
4. Chemical changes involves either
Weiter for Tee and for False
respect of
of energy​

Answer 1

Answer:

1) Reversed

2) Method

3) separation

4) I don't know

Answer 2

Answer:

4. True

this is the 4th answer

thanks