explains what are the molecular orbitals present in hydrocarbons and how they are formed by atomic, hybrid and non-hybrid orbitals; describe the steps of the electrophilic addition and explain why the π bond is broken between the two carbon atoms and not the σ bond?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added