Two or more substances may combine chemically under certain conditions and form compounds.
When two or more substances combine chemically, they undergo a chemical reaction where their atoms rearrange to form new chemical bonds. This results in the formation of one or more new substances with different properties than the original substances.
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Chemical (Apex)
it is important to separate and purify substances so that: 1.we can get them in their pure form. 2.to remove undesirable particles from them.
2 or more chemical substances interacting with each other to form a new substance
Compound.
Two or more substances which can chemically react form new chemicals after the reaction.1. If these chemicals react they form new compounds.2. Without a chemical reaction they form a mixture.Read more: What_is_two_or_more_substance_are_combined
Reactivity
These substances form a mixture.
The ability of two or more substances to combine to form other substances.
Synthesis
a solution is 2 or more substances and can be seperated easily
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Chemical change
The rearranging of atoms to form new combinations is called bonding, more specifically chemical bonding (or chemical reaction) and the resultant "new combinations" are called compounds.
This is a chemical reaction.