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Science 10 Chemical Reactions Assignment
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For the following questions balance the equation and write it in words. Each will be
worth 3 marks.
1. ___AgNO3 + ____Cu  ____CuNO3 + ____Ag
2. ____NaCl + ____H2SO4  _____Na2SO4 + ____HCl
3. ____Mg + _____ H2SO4  _____MgSO4 + ____H2
4. ____Pb(NO3)2  _____PbO + ____NO2 + ____O2
5. ____C2H6 + ____O2  ____H2O + ____CO2
6. ____Pb(NO3)2 + _____NaI  _____PbI2 + ____NaNO3
7. _____ (NH4)2SO4 + ____NaOH  _____NH3 + ____HOH + ____Na2SO4
8. ____NaOH + ____HNO3  ____HOH + ____NaNO3
9. ____Zn(OH)2 + ____H3PO4  ____Zn3(PO4)2 + ____HOH
10. _____CS2 + ____Cl2  ____CCl4 + ____S2Cl2
For the following questions identify what type of reaction is occurring and write a
balanced chemical equation. Each will be worth 3 marks.
11. Metallic iron is dropped into hydrogen chloride to produce hydrogen gas and
iron(III)chloride.
12. Bubbling chlorine gas through a solution of potassium iodide gives elemental
iodine and potassium chloride.
13. Iodine crystals react with chlorine gas to form iodine trichloride.
14. iron(III) chloride is mixed with calcium hydroxide to form iron(III) hydroxide and
calcium chloride.
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15. potassium nitrate breaks down into potassium nitrite and oxygen gas.
16. barium chloride is mixed with potassium carbonate to form barium carbonate and
potassium chloride.
17. iron(II) sulfide is mixed with hydrogen chloride to give iron(II) chloride and
hydrogen sulfide.
18. aluminum and nitrogen gas react to form aluminum nitride.
19. aluminum reacts with copper(II) sulfate to form aluminum sulphate and copper
metal.
20. phosphorous reacts with oxygen gas to form tetraphosphorous deca-oxide.
For the following questions predict the products of the reaction write and balance the
completed chemical equation. Each will be worth 3 marks.
21. ___Cu + ___S8 
22. ___CaO + ____HOH 
23. ___Zn + _____H2SO4 
24. ___Sn + _____NaNO3 
25. ____H2SO4 + ______Al(OH)3 
26. ____KOH + _____H3PO4 
27. ____SrBr2 + _____(NH4)2CO3 
28. ____C6H6 + _____O2 
29. ____Fe(NO3)3 + ____LiOH 
30. ____BaCl2 + ______H3PO4 