what are the indicators of a chemical change

Best answer

Smoking, changes in color, temperature change, bubbling, fizzingare all signs of a chemical alteration. This is an example of a chemical change. The bubbles are caused by carbon dioxide gas, the new substance formed.

People also ask

  • What are the five indicators of a chemical change?

  • What Are Five Indicators of a Chemical Change? What Are Five Indicators of a Chemical Change? Five indicators of a chemical change are color change, temperature change, precipitate formation, gas bubble formation and smell or taste change.

  • How do chemicals indicators work?

  • Chemical indicators are organic substances that are used to determine the endpoint. Indicators are generally weak acids or weak bases. Indicators change their colors at a certain pH range due to ionization. Unionized forms essentially have a different color than ionized forms. Most of the pH indicators work at a pH range from 3 to 11.

  • How are chemical changes distinguishable from physical changes?

  • Chemical changes are distinguishable from physical changes by five major indicators. If at least one of these indicators is present during a change in matter, a chemical change is probably occurring. The five major indicators of chemical changes are:

  • Why is temperature change an indicator of chemical reaction?

  • Temperature change is one major indicator of a chemical change. If a substance becomes hotter or colder to the touch, a chemical reaction is occurring. Temperature changes provide evidence of chemical reactions because the release or absorption of energy causes them.

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