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Worksheet #2 DECOMPOSITION REACTIONS RULESIF THE REACTANT IS A SINGLE COMPOUND, THE REACTION IS A DECOMPOSITION REACTION.GENERAL EQUATION: AB ï...
IF THE REACTANT IS A SINGLE COMPOUND, THE REACTION IS A DECOMPOSITION REACTION.
GENERAL EQUATION: AB A + B [ Compound Element1 + Element2 ]
APPLY THESE RULES TO DECOMPOSTION REACTIONS:
salt metal + nonmetal
ternary acid nonmetal oxide (acid anhydride) + water
metal hydroxide metal oxide (basic anhydride) + water
metal chlorate metal chloride + oxygen
salt (with polyatomic ion) nonmetal oxide + metal oxide
metal carbonate metal oxide + carbon dioxide
metal oxide metal + oxygen
hydrated salts anhydrous salt + water
STATES OF MATTER IN DECOMPOSITION REACTIONS:
nonmetal oxides (g) metal oxides (s)
salts (s)
water as a product (g) water as a reactant (l) acids (aq)
individual elements (look at periodic chart for state)
THE DIATOMICS: H2, N2, O2, F2, Cl2, Br2, I2
DIRECTIONS: Determine the products of each reaction. Balance the equation. Indicate the states of matter on all reactants and products. Place the rule number for each to the right of each problem.
ZnCO3 _______________________________
Ba(ClO3) 2 _____________________________
Sb2O5 ________________________________
CaCO3 _______________________________
KClO3 _______________________________
H2CO3 _______________________________
Ba(OH) 2 _____________________________
HgO ________________________________
NaCl ________________________________
H2SO4 _______________________________
11. Ag2O _________________________________ 12. Fe(OH) 2 _______________________________ 13. PBr5 __________________________________ 14. CuSO4 • 5H2O _________________________ 15. Mg(OH) 2 ______________________________ 16. H3PO4 _________________________________ 17. Al(OH)3 ________________________________ 18. Zn(NO3)2 _______________________________ 19. Ca3(PO4)2_______________________________ 20. NaO2 __________________________________
Chemical Equations
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