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

4. absorption has the highest risk of overdose due to increased potency. a. rectal b. oral c. transdermal d. intranasal

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never