To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave which you already know as 186000 miles per second and its
a. refraction intensanator
b. amplitude divisor coefficient
c. intensity lumenous
d. wavelength

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?