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Chemical Equations Test Review
1. List the seven diatomic molecules.
2. Label the parts. Labeling of equationFe(s) + CuSO4(aq) → Fe2(So4)3(aq) + Cu(s) yields products reactants
(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
3. Classify the reaction (a) 2NaCl (aq) + Pb(NO3)2(aq) → PBCL2(s) + 2Na(NO3)(aq) Double Replacement (b) H2(g) + Cl2(g) → 2HCl(g) Synthesis (c) C2H8(g) + 4O2(g) →2CO2(g) + 4H2O(g) Combustion (d) 2Li(s) + 2H2O (l ) → 2LiOH(aq) + H2(g) Single Replacement (e) 2KNO3(s) → 2KNO2(s) + O2(g) Decomposition
4. Add coefficients to balance the equations 3 2 1 (a) ____Hf + ____N2 → ____Hf3N4 1 1 1 1 (b) ____Mg + ____H2 SO4 → ____ MgSO4 + ____H2 2 7 4 6 (c) ____C2H6 + ____ O2 → ____ CO2 + ____ H2O 1 2 1 2 (d) ____Pb(NO3)2 + ____NaI → ____PbI2 + ____NaNO3 2 2 4 1 (e) ____Pb(NO3)2 → ____PbO + ____NO2 + ____O2
KCl + AgNO3 → KNO3 + AgCl Write balanced chemical equationsfor each word equations (a) potassium chloride + silver nitrate → potassium nitrate+ silver chloride KCl + AgNO3 → KNO3 + AgCl
Al(OH)3 + NaNO3 → Al(NO3)3 + NaOHWrite balanced chemical equations for each word equations (b) aluminum hydroxide + sodium nitrate → aluminum nitrate + sodium hydroxide Al(OH)3 + NaNO3 → Al(NO3)3 + NaOH
Fe + CuSO4 → FeSO4 + Cu Write balanced chemical equationsfor each word equations (c) iron metal + copper (II) sulfate → iron (II) sulfate + copper metal Fe + CuSO4 → FeSO4 + Cu
Al+ CuCl2 → AlCl3 + Cu Write balanced chemical equationsfor each word equations (d) Aluminum metal + copper (II) chloride → aluminum chloride + copper metal Al+ CuCl2 → AlCl3 + Cu
NaClO3 → NaCl + O2 Write balanced chemical equationsfor each word equations (e) Sodium chlorate → sodium chloride + oxygen gas NaClO3 → NaCl + O2
Ca(CO3 )→ CaO + CO2 Write balanced chemical equationsfor each word equations (f) calcium carbonate → calcium oxide + carbon dioxide gas Ca(CO3 )→ CaO + CO2
Zn + O2 → ZnO Write balanced chemical equationsfor each word equations (g) zinc metal + oxygen gas → zinc oxide Zn + O2 → ZnO
Cl2 + Na → NaCl Write balanced chemical equationsfor each word equations (h) Chlorine gas + sodium metal → sodium chloride Cl2 + Na → NaCl
Al2(SO4)3 + BaCl2 → AlCl3 + BaSO4Write balanced chemical equations for each word equations (i) aluminum sulfate + barium chloride → aluminum chloride + barium sulfate Al2(SO4)3 + BaCl2 → AlCl3 + BaSO4
BeF2 + Mg → MgF2 + Be Write balanced chemical equationsfor each word equations (j) beryllium fluoride + magnesium → magnesium fluoride + beryllium BeF2 + Mg → MgF2 + Be
Unit 7 Chemical Reactions Types of Reactions. Type of Reactions Chemical reactions are classified into five general types.
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1) C + H 2 → C 3 H 8 2) C 6 H 12 + O 2 → H 2 O + CO 2 3) NaI + Pb(SO 4 ) 2 → PbI 4 + Na 2 SO 4 4) HgI 2 + O 2 → HgO + I 2 5)List the 7 diatomic molecules.
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Chemical Reactions. Types of Reactions 5 types of chemical reactions we will talk about: 1.Synthesis reactions 2.Decomposition reactions 3.Single Replacement.
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Types of Reactions There are five types of chemical reactions we will talk about: 1. Synthesis reactions 2. _____________ reactions 3. Single displacement.
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