color change , heat given off light given off shape and asll that stuff ya here1
thomas thetank engine
Colour change is an obvious sign of a reaction occurring. Other indications include: Gas given off (fizzing/bubbling) Precipitate formation (creation of a solid) Disappearance of a solid reactant...
Hydrolysis of disaccharides apex lol
when there is a color change, formation of a gas, formation of a precipitate, and by an energy change (exothermic and/or endothermic).