Dude what's the difference between a parallel circuit and a series circuit? cuz idk

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.