Awave of infrared light has a speed of 6 m/s and a wavelength of 12 m. what is the frequency of this wave?
0.5 hz
2.0 hz
18 hz
72 hz

Consider the point on the plot where 10.0 g of naoh have been added. what amount of naoh, in moles, has been added? 0.308 mol fecl3 initially present

What is avogadro’s number, and why is it useful

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.