Ques-1 Write true and false for the following :-
1)tearing of paper is a physical change
2)...
Ques-1 Write true and false for the following :-
1)tearing of paper is a physical change
2) The presence of oxygen and water is necessary for rusting of iron
3) Copper is more reactive than iron
4) A physical change can we reserved.
5) In a chemical change ,no new substance is formed
Ques-2 Complete the analogies.
1) Acetic acid:vinegar:: lime water.
2) Copper sulphate : blue vitriol:: green vitriol
3) Physical change: :: chemical change:permanent
4) Oxide of iron: : : oxide of magnesium :MgO
5) Saline water: salt water :: soda water:
Answers: 1
Chemistry, 22.06.2019 12:00
Why are people not able to skip a dive to the deepest part of the ocean
Answers: 1
Chemistry, 22.06.2019 12:30
In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
Answers: 3
Chemistry, 22.06.2019 14:30
The three types is stress that act on earths rocks are compression, tension, and
Answers: 1
Mathematics, 12.08.2020 09:01
English, 12.08.2020 09:01
Mathematics, 12.08.2020 09:01
History, 12.08.2020 09:01
Spanish, 12.08.2020 09:01
English, 12.08.2020 09:01