When a substance was tested on both red and blue litmus paper, neither the red or blue litmus paper changed colors. Therefore, the
substance tested was most likely:

a. neutral
b. a base
c. an acid
d. invisible

A.neutral

Explanation:

When blue litmus paper is placed in a substance that is acidic, it will turn to red. However, if placed in a substance that is basic or neutral, it will remain blue.When red litmus paper is placed into a basic substance, it will turn blue. If it comes in contact with an acidic or neutral substance, it will remain red.

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

answerleaving cheese out to get moldy;