The negative ion reactions that consist of the formation of carbon dioxide in the atmosphere is generally an exothermic reaction. By definition, an exothermic reaction takes place when the chemical process eventually releases heat as its by-product. It is in contrast in endothermic process wherein heat is absorbed.
Procedures that are likely a chemical change are:
- Bubbles were produced when iron was placed in acid.
- Two liquids were combined, and a solid appeared
- A white substance turned blue when water was added.
I think it is D I'm not positive
Neutrons actually don't carry an electrical charge, which is why they are called neutrons because they are "Neutral".
total pressure = ( 705 torr + 231.525torr) = 936.525torr
