When a substance changes its state, all BUT ONE of these statements ist A)
Mass remains constant.
B)
Only the form changes.
Kinetic energy changes.
D)
Something chemically new is formed.
Science

"Something chemically new forms" is the incorrrect statement

Explanation:

When a substance changes its state, it retains its mass even though its form and kinetic energy changes. It is simply moving between states, that is: loosing energy or gaining it. its chemical composition does not change.

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Oxidation-Reduction (REDOX) reactions can be defined with respect to electrons and Hydrogen and Oxygen.

Electrons:
                In a reaction the atom which looses electron(s) is said to be oxidized (reducing agent) and the atom which gains electron(s) is said to be reduced (oxidizing agent).

Oxygen-Hydrogen:
                            In a reaction if a reactant looses hydrogen or gain oxygen is said to be oxidized and the reactant which looses oxygen and gains hydrogen is said to be reduced.

Result:
           The correct answer is "May involve in loss of Hydrogen and Electrons".