practice: predicting products of chemical reactions\nuse your knowledge of the types of chemical reactions…

practice: predicting products of chemical reactions\nuse your knowledge of the types of chemical reactions and of bond formation in compounds to complete each reaction below. after, balance the equation, if needed. show all work for balancing on a separate sheet of paper. place coefficient final answers in the blanks provided. you can leave coefficients of 1 blank.\npart 1 synthesis reactions\n1. 4 na + o₂ →\n2. mg + f₂ →\n3. na + cl₂ →\n4. al + s →\n5. ca + p →\npart 2 decomposition reactions (hint: oxygen is always o₂ on its own, and metals tend to stand alone.)\n6. 2 hgo →\n7. 2 al₂o₃ →\npart 3 single replacement reactions (hint: like elements always switch!)\n8. 2 al + 3 niso₄ → al₂(so₄)₃ + 3ni\n9. f₂ + 2 nacl → 2naf + cl₂\npart 4 double replacement reactions\n10. koh + nacl →\n11. bacl₂ + na₃po₄ →\n12. agno₃ + cacl₂ →\npart 5 combustion reactions\n13. ch₄ + o₂ →\n14. c₂h₂ + o₂ →\n15. c₇h₁₆ + o₂ →

practice: predicting products of chemical reactions\nuse your knowledge of the types of chemical reactions and of bond formation in compounds to complete each reaction below. after, balance the equation, if needed. show all work for balancing on a separate sheet of paper. place coefficient final answers in the blanks provided. you can leave coefficients of 1 blank.\npart 1 synthesis reactions\n1. 4 na + o₂ →\n2. mg + f₂ →\n3. na + cl₂ →\n4. al + s →\n5. ca + p →\npart 2 decomposition reactions (hint: oxygen is always o₂ on its own, and metals tend to stand alone.)\n6. 2 hgo →\n7. 2 al₂o₃ →\npart 3 single replacement reactions (hint: like elements always switch!)\n8. 2 al + 3 niso₄ → al₂(so₄)₃ + 3ni\n9. f₂ + 2 nacl → 2naf + cl₂\npart 4 double replacement reactions\n10. koh + nacl →\n11. bacl₂ + na₃po₄ →\n12. agno₃ + cacl₂ →\npart 5 combustion reactions\n13. ch₄ + o₂ →\n14. c₂h₂ + o₂ →\n15. c₇h₁₆ + o₂ →

Answer

Explanation:

Step1: Recall synthesis reaction rules

Synthesis reactions combine elements to form compounds. For metal - non - metal reactions, we use oxidation states to predict products.

  1. $4Na + O_2\rightarrow2Na_2O$
  2. $Mg + F_2\rightarrow MgF_2$
  3. $2Na+Cl_2\rightarrow2NaCl$
  4. $2Al + 3S\rightarrow Al_2S_3$
  5. $3Ca + 2P\rightarrow Ca_3P_2$

Step2: Recall decomposition reaction rules

Decomposition reactions break compounds into elements or simpler compounds. 6. $2HgO\rightarrow2Hg + O_2$ 7. $2Al_2O_3\rightarrow4Al + 3O_2$

Step3: Recall single - replacement reaction rules

In single - replacement reactions, a more reactive element replaces a less reactive one in a compound. 8. $2Al + 3NiSO_4\rightarrow Al_2(SO_4)_3+3Ni$ 9. $F_2 + 2NaCl\rightarrow2NaF+Cl_2$

Step4: Recall double - replacement reaction rules

In double - replacement reactions, the cations and anions of two compounds switch places. For 10, $KOH + NaCl$ no reaction as no precipitate, gas or water is formed. 11. $3BaCl_2 + 2Na_3PO_4\rightarrow Ba_3(PO_4)_2+6NaCl$ 12. $2AgNO_3 + CaCl_2\rightarrow2AgCl + Ca(NO_3)_2$

Step5: Recall combustion reaction rules

Hydrocarbon combustion produces carbon dioxide and water. 13. $CH_4 + 2O_2\rightarrow CO_2+2H_2O$ 14. $2C_2H_2 + 5O_2\rightarrow4CO_2 + 2H_2O$ 15. $C_7H_{16}+11O_2\rightarrow7CO_2 + 8H_2O$

Answer:

  1. $4Na + O_2\rightarrow2Na_2O$
  2. $Mg + F_2\rightarrow MgF_2$
  3. $2Na+Cl_2\rightarrow2NaCl$
  4. $2Al + 3S\rightarrow Al_2S_3$
  5. $3Ca + 2P\rightarrow Ca_3P_2$
  6. $2HgO\rightarrow2Hg + O_2$
  7. $2Al_2O_3\rightarrow4Al + 3O_2$
  8. $2Al + 3NiSO_4\rightarrow Al_2(SO_4)_3+3Ni$
  9. $F_2 + 2NaCl\rightarrow2NaF+Cl_2$
  10. No reaction
  11. $3BaCl_2 + 2Na_3PO_4\rightarrow Ba_3(PO_4)_2+6NaCl$
  12. $2AgNO_3 + CaCl_2\rightarrow2AgCl + Ca(NO_3)_2$
  13. $CH_4 + 2O_2\rightarrow CO_2+2H_2O$
  14. $2C_2H_2 + 5O_2\rightarrow4CO_2 + 2H_2O$
  15. $C_7H_{16}+11O_2\rightarrow7CO_2 + 8H_2O$