Magnesium bromide is an ionic compound whit the chemic formula mgbr2 what does the 2 tell you.

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j

I’m an electrically neutral atomic any element, there are equal numbers of

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above