White Powders Properties and Reactions

Powder Description Rxn to Rxn to Rxn to Name of Number Water Vinegar Iodine Powder Crystals, 1 Lg. grains None None None Tastes sweet

2 Fine powder None Fizzes, Black color releases gas

3 Fine powder None Fizzes, None releases Gas Black to 4 Fine Powder None None purple Grainy crystals 5 Tastes salty Dissolves None None Expands , be- 6 Fine Powder Comes None None rubbery

Properties of powders:

Sugar- sweet taste

Salt- salty taste, dissolves in water

Baking soda- sodium bicarbonate- odorless, dissolves in water, rxn to acid: bubbles and gives off a gas

Corn starch- thickens with water, rxn to iodine: turns black

Sodium polyacrylate- a polymer that is super absorbant

(rxn means reaction) White Powders Properties and Reactions