The law is approximately valid for real gases at sufficiently low pressures and high temperatures. The specific number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, is 6.02214076 × 1023, a quantity called Avogadro's number, or the Avogadro constant.
Answer:
A tiny sense positively charge core called a nucleus in which nearly all the mass is concentratedm
Light bulb -it produces heat and light
toaster - it produces heat and the metal strips glow producing light
