What’s a simple machine

Compare these two waves : a. the blue wave has a higher pitch, but the orange wave is louder. b.the blue and orange waves have the same volume, but the blue wave has a higher pitch. c.the blue and orange waves have the same pitch, but the blue wave is louder. d.the orange wave has a higher pitch, but the blue wave is louder.

Determine the percent sulfuric acid by mass of a 1.61 m aqueous solution of h2so4. %

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5