A. Combination B. Bouble displacement B. Decomposition c. Single displacement E. Combustion F. Acid-base 1. Na OH + KNO3 -----→ Na NO3 + K OH 2. CH4 + O2 -------→ 3. Fe + Na Br -- 4. Ca SO4 + Mg ( OH )2 ------→ Ca (OH )2 + Mg SO4 5. NH4 OH + H Br -------→ H2O + NH4 Br 6. P4 + O2 --------→ P2 Os 7. Na NOs ------→ Na NO2 + O2 8. C18 H18 + O2 -------→ CO2 + H2O 9. H2 SO4 + Na OH 10. Ni SO4 + Lis PO4 ----→ Ni3 ( PO4 )2 + Liz SO4 CO2 + 2 H20 ---→ Fe Br3 + Na -→ Na SO. + H20
A. Combination B. Bouble displacement B. Decomposition c. Single displacement E. Combustion F. Acid-base 1. Na OH + KNO3 -----→ Na NO3 + K OH 2. CH4 + O2 -------→ 3. Fe + Na Br -- 4. Ca SO4 + Mg ( OH )2 ------→ Ca (OH )2 + Mg SO4 5. NH4 OH + H Br -------→ H2O + NH4 Br 6. P4 + O2 --------→ P2 Os 7. Na NOs ------→ Na NO2 + O2 8. C18 H18 + O2 -------→ CO2 + H2O 9. H2 SO4 + Na OH 10. Ni SO4 + Lis PO4 ----→ Ni3 ( PO4 )2 + Liz SO4 CO2 + 2 H20 ---→ Fe Br3 + Na -→ Na SO. + H20
A. Combination B. Bouble displacement B. Decomposition c. Single displacement E. Combustion F. Acid-base 1. Na OH + KNO3 -----→ Na NO3 + K OH 2. CH4 + O2 -------→ 3. Fe + Na Br -- 4. Ca SO4 + Mg ( OH )2 ------→ Ca (OH )2 + Mg SO4 5. NH4 OH + H Br -------→ H2O + NH4 Br 6. P4 + O2 --------→ P2 Os 7. Na NOs ------→ Na NO2 + O2 8. C18 H18 + O2 -------→ CO2 + H2O 9. H2 SO4 + Na OH 10. Ni SO4 + Lis PO4 ----→ Ni3 ( PO4 )2 + Liz SO4 CO2 + 2 H20 ---→ Fe Br3 + Na -→ Na SO. + H20
Classify the following unbalanced chemical equations according to the six types of chemical reactions. Write the letter only on the space provided.
Transcribed Image Text:CLASSIFICATION OF CHEMICAL REACTION:
1. COMBINATION REACTION-reactants combine to form a single product. The formula for this
reaction is
A + B-----→ AB
Example. Na + Cl2 ----→
Na CI
2. DECOMPOSITION REACTION – a single reactant breaks down into simpler ones. ( 2 or more
products ). This is the reverse of combination reaction. The formula for this reaction is
Eample.
AB ----
→ A + B
H20 ------>
H2 + O2
3. SINGLE DISPLACEMENT ( Replacement ) REACTION --one element replaces another
element from a compound. The more active element takes the place of the less active element in
the compound.
A + BC -----→ AC +B
Example. Al + Liz O ------→ Al Os + Li
4. DOUBLE DISPLACEMENT REACTION ( metathesis) – When the positive ions ( cations ) and
negative ions (anions ) of different compounds switch places forming two entirely different
compounds. The equation.
AB + CD -----> AD + CB
Example. Ba Cl2 + Na Br ---> Ba Brz + Na CI
5. COMBUSTION ( Burning ) REACTION. This when oxygen combines with a hydrocarbon to form
water and carbon dioxide.
Example. CH4 + O2 ----→ cO2 + H2O
6. ACID – BASE REACTION – a special kind of double displacement that takes place when an acid
and base react with each other.
Example.
HCI + NaOH ----→ NaCI + H2O
The mass is conserved in a chemical reaction known as the Law of Conservation of Mass .
The total mass of the reactants is equal to the total mass of the products. No new atoms are created or
destroyed. there was only grouping and regrouping ( rearrangement ) of atoms.
For a chemical equation to conform to the Law of Conservation of Mass, it has to be balanced.
Chemical equations are balanced by placing the appropriate coefficients before the symbols or formulas
of reactants and products. The coefficient ( number) placed before the formulas indicate the
number of molecules or moles while the subscript ( number ) placed after the element /compound.
Transcribed Image Text:A. Combination
B. Decomposition
C. Single displacement
D. Double displacement
E. Combustion
F. Acid-base
1. Na OH + KNO3 ----> Na NO3 + K OH
2. CH4 + O2 -------→ CO2 + 2 H20
3. Fe + Na Br
4. Ca SO4 + Mg ( OH )2 -----→ Ca (OH )2 + Mg SO4
5. NH4 OH + H Br --------> H2O + NH4 Br
6. P4 + O2
7. Na NO3 -------→ Na NO2 + O2
8. C18 H18 + O2
9. H2 SO4 + Na OH ------
10. Ni SO4 + Lis PO4
→ Fe Brs + Na
-------- P2 Os
-→ CO2 + H2O
-------*
→ Na SO4 + H2O
-→ Ni3 ( PO4 )2 + Liz SO4
-------
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
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