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how can you seperate two immiscible liquids ?
(d) Sol is a liquid-solid colloid and Gel is a solid-liquid colloid
state some examples of diffusion in solid, gases, liquid
What is chromatography? What are its various applications and underline the
is air a mixture or compound? give 3 reasons.
what is crystallization?
(a) How can we separate a mixture of two miscible liquids ?
10 difference between 3 states of matter
what is the difference between distillation and fractional distillation in tabular form?and dont tell mw that go to this link . give me this answer by typing in tabular form.
What is the dispersed phase and the dispersion medium in milk?
why is crystallization technique better than evaporation
why do liquids flow ? Explain .
(d) Blood is a compound and sea water is a mixture
State three reasons why you think air is a mixture and water is a compound.
why iron sulphide is a compound and not a mixture?
Differentiate between miscible and immiscible liquids..
difference between aqueous and non aqueous solutions?
A solution contains 30g of glucose and 20g of sugar in 500 mL of water. Calculate the mass percentage of glucose and sugar. (Density= 1g/mL)
define aerosol, emulsion, sol, gel
List out the difference between Solution,Suspension and Colloidal Sollution in all aspects.
what is the difference between sol,gel and emulsion?
An object is moving with uniform speed in a circle of radius r. Calculate the distance and displacement (a) When it complete half the circle (b) When it completes full circle (c) What type of motion does the object possess ? (Justify your answer)
melting of wax is a physical change whereas burning of candle is a chemical change why?
Is coal a mixture, element or compound?
does chalk powder dissolves in water if not why??
what happens when a saturated solution is further heated???????????
what does a solution expressed as 3.5% mass by volume mean????????????
clouds and automobile exhausts are both classified as aerosols.is there any difference?
what are the uses of sublimation in daily life( any three uses)?
draw a flow chart showing the separation of componets of air. Also, name this process?
Calculate the mass of water and mass of glucose required to make 250g of 40% solution of glucose??
pls answer as soon as possible!!!!!!!
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
water is a compound not a mixture .justify it by giving two reasons
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
(ii) Which food colouring contained the most dyes?
(c) Which food colouring did not dissolve in the water?
(d) Which method did Gary use to separate the dyes?
define colloidal solution....???
is muddy water a colloidal solution or a suspension ?
rate of evaporation of aqueous solution decreases with increases in humidity?why.
what is the difference between true solution,suspension,colloidal sol ? I want detailed information
True solution stable
Colloid is stable
and Suspension is unstable.
Is growth ofbody (human) a physical change or a chemical change?
explain why water is compound
When sodium hydroxide is added to ferric chloride solution,a reddish brown precipitate is formed.The precipitate is separated from the mixture by the process of
A)Evaporation B)Sublimation C)Filtration D)Fractional Distillation
What are the uses of Centrifugation in daily life? (Pls. mention at least five examples)
what is the solute and solvent in brass
list some more solid solution with theri solvent & solute
write any 2 applications of chromatography
State the principle used in separation by centrifugation
What is the difference in apparatus used for distillation and fractional distillation ?
1) Calculate the ratio of momentum, when
Velocity of an object is doubled
Mass of an object is halved
Both mass and velocity are increased by three times
What happens when dilute HCl is poured on a mixture of iron and sulphur.
suggest separation technique
1,mercury and water
2.potassium chloride and ammonium chloride
3.common salt,water and sand
4.kerosene oil,water and sand
with the help of labelled diagram describe an activity to separate a mixture containing ammoniun chloride and salt
a solution contains 40 ml of ethanol mixed with 100 ml of water .calculate the concentration in terms of volume by volume percentage of the solution
a solution of urea in water contains 16grams of it in 120 grams of solution. find out the mass percentage of the urea
the rate of diffusion of liquids is higher than that of solids. why?
name the process by which common salt is obtained from sea water.
acetone evaporates in normal room temp.why do we have two heat it to its boiling point?
Which gas forms the liquid first as the air is cooled?
a growing tree is chemical or phycal change..??
Calculate the mass of glucose and water required to make 250g of 25% solution of glucose.
write the steps involved in the process of obtaining pure copper sulphate from an impure sample.
is kerosene a pure substance
Why is it not possible to distinguish particles of a solute from the particles of solvent in a true solution
WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
Classify the following into elements, compound and mixtures:
Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, water, chalk.
on suffering from fever which will lower down your body temperature more ice or ice cold water ?why?
Which method is used to separate benzene from water
HOW CAN U OBTAIN PURE COPPER SULPHATE FROM IMPURE SAMPLE?
7g of iron fillings and 4g of sulphur powder iz ttreated with dil. h2so4 at room temperature. name the gas produced?
1) same mixture iz heated strongly and heated with dil h2so4 which gas would be produced?
2) what is the cause of this differencein results od chemical reaction in differnt conditions?
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
how will u separate common salt ,sulphur powder n sand from their mixture
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