What is the formula of the compound vanadium (V) oxide? Use the list of polyatomic ions and the periodic table to help you answe
r. A. VO2 B. VO5 C. V5O2 D. V2O5 E. V2O5
2 answers:
Answer: D.
Explanation: Ionic compound is formed by transfer of electrons from metal to non metal.
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.
Here vanadium is having an oxidation state of +5 and oxide is a ion with oxidation state of -2. Thus on exchange of their oxidation states, they combine to form neutral .
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The net force = -5 N
The direction : to the left(negative sign)
<h3>Further explanation </h3>Net force : the sum of all forces acting on an object
Force is a vector quantity that has both magnitude and direction,
We agree that the move up and to the right is a positive sign, while down and to the left is a negative sign.
The direction of the force (horizontal motion) is to the right (+32 N), and to the left (-37 N), so the net force :