Question

0xygen and hydrogen react to form water . which property is this?physical or chemica

Answer 1

Answer:

Chemical change.

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Answer 2

This is manifestly a chemical change............

Explanation:

Chemical change is characterized by the making and breaking of strong chemical bonds, and the formation of new substances.......

H

2

+

1

2

O

2

→

H

2

O

And this representation certainly depicts the breaking STRONG

H

−

H

and

O

=

O

bonds, and the making of stronger

H

−

O

bonds in the water molecule.

And so, this clearly is an example of chemical change.