B is the correct answer. All chemical reactions lead to new material being formed — this is one or more substances. Chemical changes are the opposite of physical changes, for example the change of state of matter.
B ;
The correct answer is B, 'A new material is formed,' as chemical changes involve the formation of new substances through the breaking and forming of chemical bonds. This is different from physical changes, where the material's state may change but its identity does not. Energy might be transformed during these changes, but it is not created or destroyed.
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