Which of these is caused by a chemical change?
a) the honey in a jar crystallizes and will no longer pour.
b) the skin of a banana turns from green to yellow as it ripens.
c) a box of powdered brown sugar turns into a solid brick over time.
d) the salt crystals in a shaker cake and will no longer pour
just the answer .

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value