A closed pipe creates a fundamental frequency of 125 Hz.
What is the next higher frequency
that will create a standing wave in
the pipe?
(Speed of sound = 343 m/s)
(Unit = Hz)

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

If an atom contains 11 protons in its nucleus, predict the element with the atomic number and electronic configuration. will the number of electrons remain the same during the chemical reaction in such an atom? explain.