What are three common signs that a chemical reaction has taken place?
Gas formation, color change, and precipitate formation
The citric acid cycle?
What is the second stage of cellular respiration
Essential to life?
What is energy
Which sign of a chemical reaction occurs when vinegar is mixed with baking soda?
Gas evolution
What do we call the solid that forms when two liquids react?
Precipitate
If magnesium is burned, it glows bright white and turns into a white powder. What evidence of a chemical reaction is this? (
Color change and formation of a new substance
A student mixed two clear liquids, and after a while, the solution turned cloudy. What happened?
A precipitate formed, indicating a chemical reaction.