please tell corrrect ans I need it urgent
Answers
Answer a chemical changes
b chemical changes
c physical changes
d chemical changes
e chemical changes
f chemical changes
g physical. changes
h physical and chemical changes both are there my science teacher has told
Answer:
a) Combination
b) Electronic structure
c) Chemical
d) High, low, large
Q2:-
Butter getting rancid => Chemical change
Boiling of water => Physical change
Fermentation of juice => Chemical change
Buring of paper => Chemical change
Baking of cake => Chemical change
Evaporation of water => Physical change
Breaking of glass => Physical change
Melting of wax => Physical change
Explanation:
(ii)
For example : ripening of fruits , germination of seeds , change in season etc. Non desirable or Undesirable changes are those changes which we do not want to take place. For example : rusting of iron, souring of milk, rottening of fruits and vegetables , global warming etc.