0
There could be many possibilities depending of the reaction.
Some of them are change in colour, odour, evolution of gases, formation of precipitate etc
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
List three signs that could make you think a chemical reaction might be taking place?
Some signs that a chemical reaction is taking place is color and temperature changes, and the formation of precipitates.
What are the signs of physical change from a chemical change?
Signs of physical change - Change in appearance,taste,display of substance Signs of chemical change- Change in chemical reaction
Why is there a Physical reaction when you lie?
A reaction that is obvious when telling a lie is a psychological reaction. People subconsciously do these things, and show signs of distress, because they are scared.Ê
What is the definition chemical change?
Chemical ChangesAs opposed to a physical change, chemical changes are present when the substance undergoes a chemical reaction and produces a new substance. A chemical change is a chemical reaction that will always take place for there to be a chemical change. Signs that a reaction is taking place: Formation of gases (bubbles), Color change, production of heat or light, and the formation of a solid. a change in composition and characteristics of matter.new substance maybe formed.original substance and form may be lost.new color and shapeExamplesFermentationPhotosynthesisRusting nailSpoiling milkDigesting food
What are the signs of an exothermic reaction?
The reaction vessel will warm/hot to the touch. 'Exothermic' ; het coming out. Conversely, if the reaction vessel feels cool/cold to the touch it is Endothermic ; taking in heat from its surroundings.
What are four possible signs that a chemical reaction has taking place?
Some indicators of a chemical reaction are:- change of color- change of odor- release of a gas- change of the temperature- change of the viscosity- formation of a precipitate- change of general appearance- possible explosion- possible chemiluminescence -formation of new compounds
What signs that a physical change has taken place in water?
hydrogen and oxygen gas are given off
what are the physical signs of high cholesterol?
what are the physical signs of high cholesterol?
What are signs of someone taking Roxy pills?
where are the signs is taking Roxy pills
What are the five signs of a physical reaction?
colour change gas bubbles new substance formed texture changes something else i don't know about.
What are 4 signs that a physical reaction took place?
A change in state. It can always be changed back into its origanal state. (Ex. Melting, boiling, evaporation, freezing) Other ex. melting butter, shredding paper, mowing the grass, or liquid water to ice
What will not affect reaction rates?
Astrological signs will not affect reaction rates.
