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Chemical Reactions - Sodium Hydroxide Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change, effervescence bubbleswhen light or heat given off, and the change is usually irreversible.
There are 6 main types of chemical reactions- combustion often called burningsynthesis, decomposition, neutralization, single replacement and double replacement.
A combustion reaction is a reaction with oxygen, and heat is evolved given off.
It is the breakdown of a compound, usually through electrolysis. Electrolysis is a method of separating bonded elements or compounds by passing an electric current through them.
One of the elements is one of the reactants, and a metal replaces a metal or a non-metal replaces a non-metal. Nowadays, it is made along with hydrogen and chlorine, using the chloralkali process any process that produces chlorine or a related oxidizer Electrolysis of a solution of sodium chloride common salt makes chlorine and sodium hydroxide.
To stop the sodium hydroxide from reacting with the chlorine, three processes can be used. The first one is called the Mercury cell process, where sodium metal forms an amalgam at the bottom of a mercury cathode.
This sodium then reacts with water to produce NaOH. Another process is called the Diaphragm Cell process, where it uses a steel cathode and a porous diaphragm.
The third is the most cost-effective and environmentally friendly process. It is called the Membrane Cell process, and it is similar to the Diaphragm Cell process, just that it produces a higher quality of sodium hydroxide. Flow chart on how to make sodium hydroxide using the Mercury Cell process:A chemical reaction is a change where two or more substances are changed into a new substance.
You can identify a chemical reaction by colour change, effervescence (bubbles), when light or heat given off, and the change is usually irreversible.4/4(1).
Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change, effervescence (bubbles), when light or heat given off, and the change is usually irreversible/5(1).
Chemical Reactions: Section 2 Chemical reactions do not just occur in a chemistry classroom; they are constantly taking place everywhere. It may be a simple or even complex reaction.
For example, a simple chemical reaction that takes place in our everyday life is cooking/5(1). Chemical Reaction Paper Select one of the following products that utilizes a chemical reaction as a main feature: Cold pack Hot pack Can of food that cooks when opened Light sticks Epoxy glue Commercially available antacids Baking soda and lemon juice Bleach Note.
Types of Chemical Reaction A chemical reaction is a process that is usually characterized by a chemical change in which the starting materials (reactants) are different from the products. Chemical reactions tend to involve the motion of electrons, leading to the formation and breaking of chemical bonds.
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