173.00m
Step by step explanation
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<span>A) Frequency due to motion
As you are moving toward the object that is making the sound the frequency is higher. When you begin to move away the frequency lowers.
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D) 1 and 4
Chromosomes are made up of DNA. DNA strands contain short segments called genes.
core electrons are those occupying the innermost or lowest energy levels
b. Na2HPO4 + NaH2PO4.
A <em>buffer </em>is a solution of a weak acid and its conjugate base. The weak acid is H2PO4^(-) and its conjugate base is HPO4^(2-).
All the other options are incorrect because they consist of only a single component.
