Then, what are the evidence that a chemical reaction has occurred?
The following can indicate that a chemical change has taken place, although this evidence is not conclusive: Change of odor. Change of color (for example, silver to reddish-brown when iron rusts). Change in temperature or energy, such as the production (exothermic) or loss (endothermic) of heat.
One may also ask, what are the 7 signs of a chemical reaction? Seven Things That Indicate a Chemical Change Is Occurring
- Gas Bubbles Appear. Gas bubbles appear after a chemical reaction has occurred and the mixture becomes saturated with gas.
- Formation of a Precipitate.
- Color Change.
- Temperature Change.
- Production of Light.
- Volume Change.
- Change in Smell or Taste.
Furthermore, what are 5 evidences of a chemical reaction?
Chemical reactions are also known as chemical changes. There are many different ways to spot a chemical change. Five different signs include odor, temperature change, precipitate formation, production of gas bubbles, and a color change.
What are the 6 signs of a chemical reaction?
Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.