Question

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

August 20, 2024

Answer

Elements – sodium, silver, tin, silicon.

Compounds – calcium carbonate, methane, carbon dioxide.

Mixtures – soil, sugar solution, coal, air, soap, blood.

💡 Some Related Questions

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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

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