Answer:
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force,
Explanation:
Phosphoryl chloride :
POCl3
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Pentane is the correct answer the prefix pent means 5 so 5 hydrogens
I think the answer is (1) Co. Because the element of Cobalt also has 2 electrons at the outer layer which is the same as Calcium. And the outer layer is an important factor which can affect the property of an element.
I think the answer is three but i can't be sure.