What are the classification of chemical reaction
Answers
ions is an essential skill for chemistry students, who must learn to predict the products of a reaction when given only the reactants. This becomes much easier for students to do when they learn the pattern of 5 basic categories of chemical reactions: synthesis, decomposition, single replacement, double replacement, and combustion. This article outlines some simple protocols your class can follow so that student pairs can produce each of
Types of Chemical Reactions
1. Synthesis reactions
Two or more reactants combine to make 1 new product.
Examples:
C(s) + O (g) → CO (g)
H O(l) + SO (g) → H SO (aq)
2. Decomposition reactions
A single reactant breaks down to form 2 or more products.
Examples:
H CO (aq) → H O(l) + CO (g)
CaCO (s) → CaO(s) + CO (g)
3. Single-replacement reactions
A single element replaces a similar element of an adjacent reactant compound.
Examples:
Zn(s) + CuSO (aq) → ZnSO (aq) + Cu(s)
4. Double-replacement reactions
Two ionic compounds exchange ions, producing 2 new ionic compounds.
Examples:
NaCl(aq) AgNO (aq) → NaNO (aq) + AgCl(s)
HCl(aq) + NaOH(aq) → NaCl(aq) + H O(l)
5. Combustion reactions
A single element or compound combines with oxygen gas releasing energy. This rapid oxidation is called burning.
Examples:
C(s) + O (g) → CO (g) + energy
2Mg(s) + O (g) → 2MgO(s) + energy
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