Answer and Explanation: Become a Study.com member to unlock this answer! The name of the compound is Manganese (VI) oxide.

MnO₂

Manganese oxideManganese(IV) oxide

Explanation: Manganese dioxide ( MnO2 ) can also be called manganese (IV) oxide . This ionic compound can catalyze the decomposition of hydrogen peroxide. Catalysts decrease the activation energy for chemical processes.

When manganese(IV) oxide is added to hydrogen peroxide, bubbles of oxygen are given off. To make oxygen in the laboratory, hydrogen peroxide is poured into a conical flask containing some manganese(IV) oxide. The gas produced is collected in an upside-down gas jar filled with water.

Synthesis. MgO2 can be produced by mixing MgO with hydrogen peroxide to create magnesium peroxide and water. This being an exothermic reaction should be cooled and kept around 30–40 degrees Celsius.

Manganese dioxide (MnO2) is an inorganic compound. It is a black to brown-colored material that occurs naturally as the mineral pyrolusite (see Figure 1).

Manganese dioxide catalyzes the break-down of hydrogen peroxide. Evidence for this is the quick bubbling when manganese dioxide is added. The formula for hydrogen peroxide is H2O2 when it is catalyzed it becomes H2O +O2. With the bubbling oxygen is being released so H2O is left.

When manganese (IV) oxide is added to hydrogen peroxide, oxygen and water are produced but there is no change in the manganese oxide. Note: the reaction rate 1g of manganese oxide is added to 100cm^3 of a solution of hydrogen peroxide.

A peroxide ion (O2-2) with a composition [O-O]2 is found in all peroxides. PbO2 does not contain peroxide ions and should thus not be referred to as peroxide.

Hydrogen peroxide also decomposes in the presence of a metal oxide catalyst into water and oxygen in an exothermic reaction (eq 1). (2) Using a catalyst, such as MnO2, reduces the activation energy to ∼58 kJ/mol(1) and accelerates the decomposition over 1000 times relative to the uncatalyzed reaction.

For a given reaction, the speed of the reaction will vary with the temperature, the pressure, and the amounts of reactants present. Reactions usually slow down as time goes on because of the depletion of the reactants.

There are four factors that affect the rate (speed) of a chemical reaction:

• temperature.
• concentration.
• particle size.
• use of a catalyst.

Five factors typically affecting the rates of chemical reactions will be explored in this section: the chemical nature of the reacting substances, the state of subdivision (one large lump versus many small particles) of the reactants, the temperature of the reactants, the concentration of the reactants, and the …

There are four main factors that can affect the reaction rate of a chemical reaction:

• Reactant concentration. Increasing the concentration of one or more reactants will often increase the rate of reaction.
• Physical state of the reactants and surface area.
• Temperature.
• Presence of a catalyst.

So if you have a reaction order of Zero (i.e., s+t=0), this basically means that the concentration of the reactants does not affect the rate of reaction.

A reversible reaction is a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously. A and B can react to form C and D or, in the reverse reaction, C and D can react to form A and B. This is distinct from a reversible process in thermodynamics.

Examples of reversible reactions

• Ammonium chloride is a white solid. It breaks down when heated, forming ammonia and hydrogen chloride.
• Ammonium chloride ⇌ ammonia + hydrogen chloride.
• The symbol ⇌ has two half arrowheads, one pointing in each direction. It is used in equations that model reversible reactions:

All reactions are reversible, but many reactions, for all practical purposes, proceed in one direction until the reactants are exhausted and will reverse only under certain conditions. In a reversible reaction, the reactants can combine to form products and the products can react to form the reactants.

1 2 3 Hydrated copper(II) sulfate is reduced to anhydrous copper(II) sulfate. The (II) in the name copper(II) sulfate refers to the oxidation state of the metal. The reaction is reversible.

In a complete combustion reaction, fuel and oxygen are the reactants and the products are carbon dioxide and water. These two products cannot react to reform the fuel and oxygen, so the reaction is irreversible. The one-way arrow in the equation shows that the reaction can go in only one direction.

(i) This reaction is not possible because copper is less reactive than zinc. (ii) This reaction is possible because iron is more reactive than copper. Iron can displace copper.

Correct option is B because Ag(Silver)is less reactive metal than copper so silver cannot displaces copper from its salt solution. Option B . bcoz Ag is less reactive than Cu ….so Ag cannot displace Cu.

A chemical reaction occurs when a substance is converted into a new substance with new physical and chemical properties.