following is a list of observations from a chemistry laboratory. place them in the appropriate category…

following is a list of observations from a chemistry laboratory. place them in the appropriate category. evidence of a chemical change no evidence for a chemical change. water boiling a candle being lit. a white cloudy substance occurs after mixing two clear solutions. burning toast yellow and blue paints mixed together.

following is a list of observations from a chemistry laboratory. place them in the appropriate category. evidence of a chemical change no evidence for a chemical change. water boiling a candle being lit. a white cloudy substance occurs after mixing two clear solutions. burning toast yellow and blue paints mixed together.

Answer

Brief Explanations:

A chemical change results in a new substance being formed. Water boiling is a physical change as it changes state from liquid to gas without forming a new substance. Mixing yellow and blue paints is a physical change as it just changes the color appearance without a new chemical substance being formed. A candle being lit involves combustion which forms new substances like carbon - dioxide and water vapor. Mixing two clear solutions to form a white cloudy substance indicates a chemical reaction forming a new substance (a precipitate). Burning toast involves a chemical reaction due to heat - induced changes forming new substances.

Answer:

Evidence of a chemical change: A candle being lit, A white cloudy substance occurs after mixing two clear solutions, Burning toast No evidence for a chemical change: Water boiling, Yellow and blue paints mixed together