What is the frequency of an electromagnetic wave that has a wavelength of 7.6 x 10^-6 m in a vacuum? (The speed of light in a vacuum is 3.00 x 10^8
m/s.)
A. 2.3 x 10^3 Hz
B. 1.3 x 10^5 Hz
C. 4.0 x 10^13 Hz
D. 2.5 x 10^-14 Hz

The compound methyl butanoate smells like apples. its percent composition is 58.8% c, 9.9% h, and 31.4% o. what’s the empirical formula ?

If the root word engage means “to connect with something,” what does the word disengage mean in the following sentence? he disengaged the gears by stepping on the clutch pedal. a.added more engine powerb. activated a connection to the pedalc. stalled the engined. released a connection to the pedal

Which proportionality applies to avogadro’s law?