Trinity conducted a science experiment using household products. she put a drop of a substance on a piece of litmus paper and it turned blue. what is the most probable substance that trinity tested?
a. water
b. orange juice
c. baking soda
d. vinegar

C

Explanation:

Litmus paper detects pH. The pH of the items are as follows:

Water - neutral

Orange juice - acidic

Baking soda - alkaline

Vinegar - acidic.

Litmus paper is red when it is in contact with an acidic substance, green when in contact with a neutral substance, and blue when it is contact with an alkaline substance. Therefore, Trinity likely tested baking soda, an alkaline substance (C)

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