In which of these situations should a fire blanket be used? A.
A hot match starts a fire in the trash can.
B.
A student's clothes catch on fire.
C.
Smoke in the lab sets off the fire alarm.
D.
A student tips over their Bunsen burner.

What are the similarities of physical and chemical change ?

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.