TYPES OF CHEMICAL REACTIONS Online Test

1. 2H2O2 -------> 2H2O + O2


2. Cu + 2AgNO3 ---------> CuNO3 + 2Ag


3. H2SO4 + Na2S ------> H2S + Na2SO4


4. N2 + 3H2 -------> 2NH3


5. 2Na + 2H2O ---------> 2NaOH + H2







Description:

THERE ARE FIVE DIFFERENT TYPES OF REACTIONS: 1. SYNTHESIS: ONE ELEMENT OR COMPOUND REACTS WITH ANOTHER ELEMENT OR COMPOUND PRODUCING A COMPOUND. A + B -------> AB 2. DECOMPOSITION: A SINGLE COMPOUND IS BROKEN DOWN INTO TWO OR MORE SIMPLE SUBSTANCES. AB ------> A + B 3. SINGLE REPLACEMENT REACTION: AN ELEMENT SYMBOLIZED AS "A", REACTS WITH A COMPOUND "Bc" FOR EXAMPLE. "A" TAKES THE PLACE OF ONE OF THE COMPONENTS OF THE COMPOUND. A + BC -------> AB +C OR AC + B. THE COMBINATION MUST BE POSITIVE WITH NEGATIVE. 4. DOUBLE REPLACEMENT REACTION: TWO COMPOUNDS "AB" AND "CD" EXCHANGE PARTNERS TO PRODUCE TWO DIFFERENT COMPOUNDS (AD AND CB). AB + CD -------> AD + CB POSITIVE ION "A" COMBINES WITH NEGATIVE ION "D" AND POSITIVE ION "C" COMBINES WITH NEGATIVE ION "B". 5. COMBUSTION REACTION: A SUBSTANCE CONTAINING HYDROGEN AND CARBON BURNS PRODUCES CARBON DIOXIDE AND WATER. 2CH4+ 4O2 ------> 2CO2 + 4H20 BALANCED EQUATION

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