What are the five indicators of a chemical reaction?
1) temperature change
2) formation of a precipitate
3) color change
4) gas formation (not boiling)
5) change in properties
Some indicators include: Change in Temperature Change in Color Noticeable Odor (after reaction has begun) Formation of a Precipitate Formation of Bubbles When two or more reactants are mixed and a change in temperature, color, etc. is noticed, a chemical reaction is probably occurring. These are not definite indicators; a chemical reaction may not be occurring. A change in color is not always a chemical change. If one were to change the color of a…
If five atoms of hydrogen are reactants in a chemical reaction then how many atoms of hydrogen will be found in the products of that reaction?
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 - formation of new compounds