1)what do you mean by global warming?
2) a solution contain 30 gram of glucose, 20 gram of salt in 500 gram of Water, calculate the mass percent of-
1) gulcose. 2) salt
3) show diagrammatically how water is purified in the waterworks system and labelled it?
4)write the drawback of rutherford's model of an atom?
5) write any 4 difference between true solution and colloidal?
solve in 5questions
Answers
1 Global warming is the observed and projected increases in the average temperature of Earth's atmosphere and oceans.
2)The solution contain 30g glucose , 20 g salt and 500g water(density of water = 1g/ml so 500ml= 500g)
Total weight of solution by mass = 30g + 20g + 500 g = 550g
Mass % of glucose = 30/ 550 *100 = 5.45 %
Mass % of salt = 20 /550 *100 = 3.63%
3) In water works system, methods like sedimentation, loading, filtration and chlorination are used to remove impurities from water.
4)Drawback of Rutherford's Nuclear Model of Atom... For this, Rutherford gave the explanation that electrons revolve around the nucleus in a spiral path. This too is not satisfactory because in following a spiral path, energy is lost by the electrons and ultimately they will fall into the nucleus, but atoms are stable.
5)Colloid
it is heterogeneous mixture in a nature.
colloid are quite stable.
colloid scatter beam of light and hence show Tyndall effect
True Solution
It is a homogeneous mixture in a nature.
It is very stable.
it does not scatter beam of light and hence do not show Tyndall effect.
answer is in photos
plz mark it as brainiest
