<span>The three ways magma can form are when rock is heated, when pressure is released, and when the composition of the rock changes. The temperature of magma is 1300-2400F. Magma collects in magma chambers under the earth's surface, and can be come to the surface in the form of lava.</span>
<span>2 Na + CaF</span>₂<span> = 2 NaF + Ca
is an example of a </span>single- replacement
answer D
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Answer:

Explanation:
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In this case, given the relationship between velocity, wavelength and frequency:

By plugging in the given wavelength and frequency, we obtain the following speed:

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