Indicate the type of change in the following processes:
a. distillation
b. souring of milk
c. rusting of iron
d. fermentation
e. photosynthesis
f. ripening of fruit
g. digestion
h. formation of snow
2007-08-25 04:03:35 · 5 answers · asked by clicked 1 in Science & Mathematics ➔ Chemistry
a. and h. are phisycal changes
2007-08-25 04:09:01 · answer #1 · answered by Dr.A 7 · 0⤊ 0⤋
You want me to do your homework. Master the lesson. I cannot pass the exam for you.
I will answer the first one
distillation entails converting a liquid to a gas (boiling) and then cooling it to its condensation temp and collecting the liquid. There is a phase change but no change in the chemical nature - this is a physical change.
souring milk - not a phase change - a change in chemical nature has to be going on so you figure it out.
2007-08-25 11:09:45 · answer #2 · answered by GTB 7 · 0⤊ 0⤋
b. souring of milk
c. rusting of iron
d. fermentation
e. photosynthesis
f. ripening of fruit
g. digestion
are all chemical changes.
distillation and formation of snow are physical changes.
2007-08-25 11:11:14 · answer #3 · answered by pigley 4 · 0⤊ 0⤋
a. physical
b. chemical
c. chemical
d. chemical
e. chemical
f. chemical
g. chemical
h. physical
2007-08-25 11:10:34 · answer #4 · answered by ledzep513 3 · 0⤊ 0⤋
a- is physical
b- is chemecal
c-is chemecal
d-is chemecal
e-is chemecal
f- is chemecal
g- not sure... probebly physical
h-is physical
2007-08-25 11:11:44 · answer #5 · answered by Avishay Zeta 2 · 0⤊ 0⤋