First choice: PhH4 has a lower boiling point
Second: SiF4 higher
Third: CBr4 higher
Answer:
hi here goes your answer
Explanation:
iv. The lower the PH, the weaker the base
The weighted average of the nail in accordance with the given data is 11.176g.
<h3>How to calculate weighted average?</h3>
Weighted average is an arithmetic mean of values biased according to agreed weightings.
The weighted average of the nail in the image above can be calculated by multiplying the decimal abundance with the mass of the nail, then summed up as follows;
Weighted average = (decimal abundance × mass 1) + (decimal abundance × mass 2)
Weighted average = (0.12 × 3.3) + (0.88 × 12.25)
Weighted average = 0.396 + 10.78
Weighted average = 11.176g
Therefore, 11.176g is the weighted average of the nail
Learn more about weighted average at: brainly.com/question/28042295
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Answer: B
Explanation: The mitochondria are vacuoles and ribosomes are in both plant and animal cell
