give 10 example of chemical reaction taking place in lab
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Answer:
Synthesis – A reaction where two reactants combine to form 1 product.
A + B → C
2 NA(s) + CI2(g) → 2NaCL2(s)
Decomposition– A reaction where a single reactant separates to form two or more products.
A → B + C
2 KCIO3 (aq) + 2 KCI(aq) → 3O2(g)
CaCO3(aq) → CaO(aq) + CO2(g)
Combustion – A reaction where a reactant burns in the presence of oxygen to form carbon dioxide and water vapor. Note that here water is usually produced as vapor due to the high amount of heat energy produced in these types of reactions.
X + __ O2(g) → __ CO2 (g) + __ H2O(g)
C3H8(g) + 5 O2 (g) → CO2 (g) + 4H2O(g)
Single Replacement – A reaction where an element and a compound react. The element replaces a similar element in the compound.
A + BC → AC + B
Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)
Mg(s) + 2H2OI → Mg(OH)2 (aq) (aq) + H2 (g)
Double Replacement – A reaction where the elements from two compounds replace one another. (Partners switch).
AB + CD → AD + CB
AgNO3 (aq) + NaCl(aq) → AgCl(s) + NaNO3 (aq)
HCl(aq) + NaOH(aq)→ NaCl(aq) + H2O(I)
Acid-Base – Also called neutralization reactions. These double replacement reactions occur when an acid and a base react to make a salt and water.
HA + BOH → BA +H2O
HNO3(aq) + NaOH(aq) → NaNO3(aq) +H2O(I)
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