Question

given the data shown, what two substances react with vinegar? hint: (+) = a reaction occurred, (-) = no reaction
substance appearance litmus (ph) r - b base b - r acid vinegar biuret (protein) iodine (starch)
baking powder powder 0 + - +
baking soda powder base + - -
corn starch powder 0 - +
gelatin crystal acid - + -
salt crystal 0 - - -
unknown crystal & powder acid - mixed mixed

Explanation:

Step1: Check Vinegar column

Look for '+' in Vinegar column.

Step2: Identify substances

Baking Powder and Baking Soda have '+'.

Answer:

Baking Powder, Baking Soda