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Chemical Equations Test Review. Diatomic Molecules 1. List the seven diatomic molecules.

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Presentation on theme: "Chemical Equations Test Review. Diatomic Molecules 1. List the seven diatomic molecules."— Presentation transcript:

1 Chemical Equations Test Review

2 Diatomic Molecules 1. List the seven diatomic molecules.

3 Labeling of equation Fe(s) + CuSO 4 (aq) → Fe 2 (So 4 ) 3 (aq) + Cu(s) reactants yields products 2. Label the parts.

4 (a) What is meant by the symbol in parentheses following a chemical formula? State of matter (i) (s) Solid (ii) ( l ) Liquid (iii) (g) Gas (iv) (aq) aqueous – dissolved in water

5 3. Classify the reaction (a) 2NaCl (aq) + Pb(NO 3 ) 2 (aq) → PBCL 2 (s) + 2Na(NO 3 )(aq) (b) H 2 (g) + Cl 2 (g) → 2HCl(g) (c) C 2 H 8 (g) + 4O 2 (g) →2CO 2 (g) + 4H 2 O(g) (d) 2Li(s) + 2H2O ( l ) → 2LiOH(aq) + H2(g) (e) 2KNO 3 (s) → 2KNO 2 (s) + O 2 (g) Double Replacement Synthesis Combustion Single Replacement Decomposition

6 4. Add coefficients to balance the equations (a) ____ Hf + ____N 2 → ____Hf 3 N 4 (b) ____Mg + ____H 2 SO 4 → ____ MgSO 4 + ____H 2 (c) ____ C 2 H 6 + ____ O 2 → ____ CO 2 + ____ H 2 O (d) ____ Pb(NO 3 ) 2 + ____NaI → ____PbI 2 + ____NaNO 3 (e) ____ Pb(NO 3 ) 2 → ____PbO + ____NO 2 + ____O

7 Write balanced chemical equations for each word equations (a) potassium chloride + silver nitrate → potassium nitrate+ silver chloride KCl + AgNO 3 → KNO 3 + AgCl

8 Write balanced chemical equations for each word equations (b) aluminum hydroxide + sodium nitrate → aluminum nitrate + sodium hydroxide Al(OH) 3 + NaNO 3 → Al(NO 3 ) 3 + NaOH

9 Write balanced chemical equations for each word equations (c) iron metal + copper (II) sulfate → iron (II) sulfate + copper metal Fe + CuSO 4 → FeSO 4 + Cu

10 Write balanced chemical equations for each word equations (d) Aluminum metal + copper (II) chloride → aluminum chloride + copper metal Al+ CuCl 2 → AlCl 3 + Cu

11 Write balanced chemical equations for each word equations (e) Sodium chlorate → sodium chloride + oxygen gas NaClO 3 → NaCl + O 2

12 Write balanced chemical equations for each word equations (f) calcium carbonate → calcium oxide + carbon dioxide gas Ca(CO 3 )→ CaO + CO 2

13 Write balanced chemical equations for each word equations (g) zinc metal + oxygen gas → zinc oxide Zn + O 2 → ZnO

14 (h) Chlorine gas + sodium metal → sodium chloride Write balanced chemical equations for each word equations Cl 2 + Na → NaCl

15 (i) aluminum sulfate + barium chloride → aluminum chloride + barium sulfate Write balanced chemical equations for each word equations Al 2 (SO 4 ) 3 + BaCl 2 → AlCl 3 + BaSO 4

16 (j) beryllium fluoride + magnesium → magnesium fluoride + beryllium Write balanced chemical equations for each word equations BeF 2 + Mg → MgF 2 + Be


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