Question

A chemical reaction does not involve: a. Formation of new substances having entirely different properties than that of the reactants b. Breaking of old chemical bonds and formation of new chemical bonds c. Rearrangement of the atoms of reactants to form new products d. Changing of the atoms of an element into those of another element to form new products Class X please give known answer

Answer 1

Answer:

According to Dalton's theory, atoms of same element are alike in all respect and atoms of different elements are different.

According to Dalton's theory, atoms of same element are alike in all respect and atoms of different elements are different. In a chemical reaction one substance is converted into another by rearrangement of atoms not by changing element of one type into other.

Answer 2

Answer

melting of candle wax on heating is an exmple of physical change no chemical reaction is taking please only the change of state from solid to liquid state