The correct answer is A. The magnetic field is strongest at the north pole and the south pole of a bar magnet. At the poles, the magnetic field is equally strong while the force is weaker at the middle of the bar. The field lines are closely packed at each pole and it gets wider as the lines get further from the pole.
Answer:
b the valence of the atoms involved
Explanation:
i just did this
Exothermic. The reaction of the two elements form the compound iron sulfide.
The Chemical fomulla for Zinc Phosphate
Zn3(PO4)2
Abiotic being is a non-living or sterile could cover a lot of elements in the desert ecosystem. Rocks, water, air
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