Which of the following is NOT a clue that could indicate a chemical change? A. change in color
B. mixing reactants
C. change in energy
D. release of gas
E. formation of precipitate​

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.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;