Question

Classify each of the following as a homogeneous or heterogeneous mixture: soda water, wood, air, soil, vinegar, filtrated tea.

August 20, 2024

Answer

Homogeneous mixture – soda water, air, vinegar, filtered tea.

Heterogeneous mixture – wood, soil.

💡 Some Related Questions

Which of the following are chemical changes? (a)Growth of a plant (b)Rusting of iron (c) Mixing of iron filings and sand (d)Cooking of food (e) Digestion of food (f) Freezing of water (g)Burning of a candle.

Classify the following into elements, compounds and mixtures. (a) Sodium (b) Soil (c) Sugar solution (d) Silver (e) Calcium carbonate (f) Tin (g) Silicon (h) Coal (i) Air (j) Soap (k) Methane (l) Carbon dioxide (m) Blood

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Explain the following giving examples. (a)Saturated solution, (b)Pure substance, (c) Colloid, (d)Suspension.

Pragya tested the solubility of three different substances at different temperatures and collected the data as given below (results are given in the following table, as grams of substance dissolved in 100 grams of water to form a saturated solution).

Substance dissolved Temperature in K

283 293 313 333 353

Potassium nitrate 21 32 62 106 167

Sodium chloride 36 36 36 37 37

Potassium chloride 35 35 40 46 54

Ammonium chloride 24 37 41 55 66

(a)What mass of potassium nitrate would be needed to produce a saturated solution of potassium nitrate in 50 grams of water at 313 K? (b)Pragya makes a saturated solution of potassium chloride in water at 353 K and leaves the solution to cool at room temperature. What would she observe as the solution cools? Explain. (c) Find the solubility of each salt at 293 K. Which salt has the highest solubility at this temperature? (d)What is the effect of change of temperature on the solubility of a salt?

Write the steps you would use for making tea. Use the words – solution, solvent, solute, dissolve, soluble, insoluble, filtrate and residue.

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