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The Main Reaction Types
There are hundreds or even thousands of types of chemical reactions! If you are asked to name the main 4, 5 or 6 types of chemical reactions, here is how they are categorized. The main four types of reactions are direct combination, analysis reaction, single displacement, and double displacement. If you're asked the five main types of reactions, it is these four and then either acid-base or redox (depending who you ask). Keep in mind, a specific chemical reaction may fall into more than one category.

Is a chemical reaction that results to the forming reddish brown colour on iron

self protection of minerals

is it corect

is about 21 by the volume of air

their are tree type of matter solid, liquid, gas

3

you are dam

is not her sorry for her/him

what

i think you dont under stand your self.

because it has the because.

ask mozila

stop jokes Twin rekcher your friend is serious.

chimney,metal ring,air suply, base.

head,shoulders,and last you can add your self

chemistry is a blanch of science which deals with nature,properties and composition of matter.

ask me

are scientific tools that are used for a scientific purpose in lab

are apparutus used in the laboratory.

i dont know

substance that brings threats to life

too bad

dangerous for life 

is the special instrument used to carry experiment in the laboratory.

nice

An special instruments used in the laboratory fo carring experment

thanks guys i was neary forget the meaning of a term apparatus

are substance that are dangerous and can cause death immediately.

killer one

are substance that are dangerous and poisonous can kill immediately

are signs which gives us warning when we are any place.

i dont know

cut my special hair

Razor blade is used to cut flapping skin.

cooking

Cut the flapping skin

is the small box contain equipment for first aid.

big box that contain a tank for water

is the small that contain an equipment for first aid

is the small box that contain items for giving first aid