Signs of a Chemical Reaction Lesson

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Signs of a Chemical Reaction

What are the signs of a chemical reaction?

There are certain things to look for that indicate a chemical reaction is occurring

The 4 Indicators of a Chemical Reaction Are:

Bubbles- a gas is being produced
Temperature Change- heat is being released or the reaction is getting colder
Color Change- the products of the reaction have a different color than the starting reactants.
It gets Cloudy- the reaction is producing a solid (called a precipitate) that makes the reaction appear cloudy

Do these signs prove a reaction is occurring?

No, these are indicators that a chemical reaction is probably occurring, but the only way to know for sure is to test it.

The 4 Indicators of a Chemical Reaction:

Gas (bubbles)
Color Change
Temperature Change
Solid produced (cloudy)

Signs of a Chemical Reaction

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