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 .
You might be interested in
Answer: 20.0 g of hydrogen chloride must simultaneously be formed
Explanation:
The balanced chemical reaction is :
According to the law of conservation of mass, mass can neither be created nor be destroyed. The mass on reactant side must be equal to the mass on product side.
Thus mass of reactants = mass of products
Given : mass of ammonium chloride = mass of reactants = 29.4 g
mass of ammonia = 9.4 g
mass of products = mass of ammonia + mass of hydrogen chloride
9.4 g +mass of hydrogen chloride = 29.4 g
mass of hydrogen chloride = 20.0 g