Which of the following is used to show sound waves? A. Microscope
B. Telescope
C. Oscilloscope
D. Spectroscope

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water