How many electrons are needed in the outer energy levels of most atoms to be chemically stable?​

In any energy conversion, some of the energy is lost to the environment as question 5 options: electrical energy potential energy sound energy thermal energy

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat