What is the difference between a mechanical wave and an electromagnetic wave?
A mechanical wave travels through empty space, while an electromagnetic wave travels through matter
A mechanical wave has a short wavelength, while all electromagnetic waves have long wavelengths.
A mechanical wave has a high frequency, while all electromagnetic waves have low frequencies,
A mechanical wave travels through matter, while an electromagnetic wave travels through empty space
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Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.