Answers: 2
Chemistry, 22.06.2019 12:00, sophiaa23
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.
Answers: 2
Chemistry, 22.06.2019 22:00, shaylasimonds587
The volume of an unknown substance in a sealed glass jar is 50 milliliters. the volume of the jar is 200 milliliters. which state of matter could the substance be?
Answers: 2
Chemistry, 23.06.2019 12:30, 1Angel2Got3Brains
Is the genie in the bottle experiment a physical or chemical change/reaction?
Answers: 1
A decorative balloon containing helium gas at 25.0 C and 100 kPa has a volume of 9.63 L. Calculate t...
Mathematics, 25.01.2021 21:10
Mathematics, 25.01.2021 21:10