Answers

  • Brainly User
2015-01-02T17:15:42+05:30
If you will touch the powdery substance you will come to know that by touching ,,
if the powder sticks on your hand it means that it is chalk powder and if it will not stick you will feel some rough powder then its a salt..
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2015-01-02T19:36:50+05:30
Take a glass of water add that  powdery substance in to it. stir it well.if, that substance dissolve easily so,it's a salt or if turns in to white color then it's a chalk powder.    
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