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What is a
Zinc Reaction? Definition of a Reaction
Define a Zinc
Reaction: A Zinc reaction involves a process in which
Zinc is mixed with another substance which react to form
something else. Reactions are manifested by the
disappearance of properties characteristic of Zinc and
the appearance of new properties in the new substance or
Compound.
The substances initially involved in a reaction are
called reactants or reagents. The most important of the
Zinc compounds is Zinc oxide, ZnO, which is used in the production
of rubber, concrete, paints and batteries and in the
treatment of minor skin rashes, cuts or burns and as a
sun screen. Reactions are described
with Chemical
Formula and Equations.
Zinc
and Water Reaction
Zinc virtually has no reaction with cold water but it reacts
with steam to give zinc oxide and hydrogen gas. Zinc Oxide (ZnO)
occurs as white powder known as zinc white. When ointments or
creams containing ZnO and water are melted and exposed to
ultraviolet light, hydrogen peroxide is produced. Zinc oxide,
ZnO, which is used in the production
of rubber, concrete, paints and batteries and in the
treatment of minor skin rashes, cuts or burns and as a sun
screen. Zinc Oxide (ZnO) also forms cement like products, used
in dentistry, when treated with phosphoric acid. Zinc oxide can
react violently with aluminium and magnesium powders, with
chlorinated rubber and linseed oil on heating causing fire and
explosion hazard.
Zinc + Steam —> Zinc
Oxide + Hydrogen
Reaction
with Oxygen - Zinc Oxide
Zinc oxide
reacts with both acids and alkalis. With acid it reacts to form
familiar compound such as zinc sulfate. The hydrated form is the
mineral goslarite which was historically known as "white
vitriol" and can be prepared by reacting zinc with aqueous
sulfuric acid. With alkali it forms zincates. An example of a
zincate is salt of zinc hydroxide Zn(OH)2. Strong
heating is required to make zinc powder burn in oxygen.
Considerable heat is given out during the reaction and a white
powder is formed, which is yellow when hot and turns white when
cold.
Zinc + Oxygen —> Zinc
Oxide
Zinc Nitrate Reaction
Zinc nitrate is a colorless crystalline solid. It is soluble
and is used as a catalyst in the manufacture of chemicals, in
medicine, and in dyes. It is non-combustible, but accelerates
the burning of combustible materials. If large quantities are
involved in a fire or the combustible material is finely
divided, an explosion may result. Prolonged exposure to fire or
heat may result in an explosion. Zinc reacts with dilute nitric
acid to give zinc nitrate and hydrogen gas.
Zinc + Nitric acid —>
Zinc nitrate + Hydrogen
Chemical Reactions
Some examples of a chemical reaction include most commonly burning, fermentation,
tarnishing and rusting. There are several different types of Chemical reaction
which have been detailed below:
Refer to
our
Chemical Reaction
article for additional facts and information providing
the different types of reactions, examples of reaction
and the Rate of a Chemical Reaction. |
