Which statement is true for most chemical reactions?
an energy change occurs during the breaking and forming of bonds.
the internal energy of the system increases during a reaction.
energy is released during the formation of reactants.
the enthalpy of the products is higher than the enthalpy of the reactants.

Astudent made the lewis dot diagram of a compound shown. what is the error in the lewis dot diagram? a)an o atom should transfer all of its six electrons to mg because the formula is mgo b) both electrons of mg should be transferred to one o adam because the formula is mgo c) the electrons should be transferred from each o add him to capital mg because mg has fewer electrons d) the number of dots around mg should be four because it has to transfer two electrons to each o

One or more substances changing into one or more substances is an example of a

98 ! and brainliest plz ! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?