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Physical change as CaCl2 is a hygroscopic substance which absorbs H2O without actually reacting with it.
1 Answers 1 viewsAnswer: The balanced reaction of combustion of carbon can be written as: C + O2 ----------------> CO2 1 1 1 (i) As per the balanced equation, 1 mole of carbon burns in 1 mole...
1 Answers 1 viewsAir gets polluted because of the following reasons; 1) Burning of different types of fuel causes air pollution for example burning of wood, furnaces and stoves. 2) The...
1 Answers 1 viewsPV = n RT= (m/M) RT M= dRT /P =1.15 x .0821 x 300/ 700 /760 = 30.75gmol-1 Let w1 be the mass fraction of N2 ans 1- w2 is the mass fraction...
1 Answers 1 viewsCl2 has a molecular mass of 71 g. And molecular mass of Air is 29 g . Relative density of chlorine =( Mass of chlorine/ Volume of chlorine) / (Mass of air/...
1 Answers 1 views(ii) pO2 higher, pCO2 lesser The partial pressure of oxygen in atmospheric air is higher than that of oxygen in alveolar air. In atmospheric air, pO2 is about 159 mm Hg....
1 Answers 1 views(a) Ultrasound can be used in: (i) Monitoring foetus during pregnancy. (ii) Medical imaging of internal organs to check their size, structure and physiological functioning in humans. (iii) Breaking kidney stones into smaller...
1 Answers 1 viewsDelhi has been categorized as the fourth most polluted city of the world in a list of 41 cities. Burning of fossil fuels has added to the pollution of air...
1 Answers 1 viewsyour answer 1987.
1 Answers 1 views