Ch.7-Writing and balancing chemical equations and precipitation reaction equations

STUDY
PLAY
During photosynthesis plants use carbon dioxide and water to make glucose and release oxygen. The equation for this reaction is:
6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂
When methane (CH₄) is burned on a stove in produces carbon dioxide and water. The equation for this reaction is:
CH₄(g) + 2 O₂(g) → CO₂(g) + 2 H₂O(g)
The reaction between solid silicon dioxide and solid carbon produces solid silicon carbide and carbon monoxide gas. The equation for this reaction is:
SiO₂(s) + 3 C(s) → SiC(s) + 2 CO(g)
The combustion of liquid octane (C₈H₁₈) produces gaseous carbon dioxide and water. The equation for this reaction is:
2 C₈H₁₈(l) + 25 O₂(g) → 16 CO₂(g) + 18 H₂O
The reaction between solid chromium(III) oxide and solid carbon produced solid chromium and carbon dioxide gas. The equation for this reaction is:
2 Cr₂O₃(s) + 3 C(s) → 4 Cr(s) + 3 CO₂(g)
Solid aluminum reacts with aqueous sulfuric acid to form aqueous aluminum sulfate and hydrogen gas. The equation for this reaction is:
2 Al(s) + 3 H₂SO₄ → Al₂(SO₄)₃ + 3 H₂
Solid iron reacts with aqueous hydrochloric acid to form aqueous iron(III) chloride and hydrogen gas. The equation for this reaction is:
2 Fe(s) + 6 HCl(aq) → 2 FeCl₃(aq) + 3 H₂(g)
Balance this chemical equation:
HCl(g) + O₂(g) → H₂O(l) + Cl₂
4 HCl(g) + O₂ → 2 H₂O + 2 Cl₂
Write an equation for when sodium carbonate ad copper(II) chloride are mixed. Does a precipitation reaction occur?
Na₂CO₃(aq) + CuCl₂(aq) → 2 NaCl(aq) + CuCO₃(s)
Write an equation for the reaction that occurs when lead(II) acetate and sodium sulfate are mixed. Does a precipitation reaction occur?
Pb(C₂H₃O₂)₂(aq) + Na₂SO₄(aq) → PbSO₄(s) + 2 Na(C₂H₃O₂)(aq)
Write an equation for the reaction that occurs when potassium hydroxide and nickel(II) bromide solutions are mixed. Does a precipitation reaction occur?
2 KOH(aq)+NiBr₂(aq) → Ni(OH)₂(s)+2 KBr(aq)
Write an equation for the reaction that occurs when solutions of ammonium chloride and iron(III) nitrate are mixed. Does a precipitation reaction occur?
3 NH₄Cl(aq) + Fe(NO₃)₃(aq) → 3 NH₄NO₃(aq) + FeCl₃(aq)
Write an equation for the reaction that occurs when solutions of potassium sulfate and strontium nitrate are mixed. Does a precipitation reaction occur?
K₂SO₄(aq) + Sr(NO₃)₂(aq) → 2 KNO₃(aq) + SrSO₄(s)
Balance the following:
Cr(s) + S₈(s) → Cr₂S₃
16 Cr(s) + 3 S₈(s) → 8 Cr₂S₃
Balance the following:
Fe₂S₃(s)+ HCl(g) → FeCl₃(s) + H₂S(g)
Fe₂S₃(s)+ 6 HCl(g) → 2 FeCl₃(s) + 3 H₂S(g)
Balance the following:
Na(s) + H₂O(l) → NaOH(aq) + H₂(g)
2 Na(s) + 2 H₂O(l) → 2 NaOH(aq) + H₂(g)
Balance the following and determine if there is a precipitation reaction occur when:
CuNO₃(aq) + KOH(aq) →
CuNO₃(aq)+ KOH(aq) → CuOH(s)+ KNO₃(aq)
Balance the following and determine if there is a precipitation reaction occur when:
Na₂S(aq) + CaCl₂(aq) →
Na₂S(aq) + CaCl₂(aq) → 2 NaCl(aq) + CaS(s)
Balance the following and determine if there is a precipitation reaction occur when:
Al(NO₃)₃(aq) + KOH(aq) →
Al(NO₃)₃ + 3KOH → Al(OH)₃(s) + 3KNO₃(aq)
Balance the following:
H₂O(l) → H₂(g) + O₂(g)
2 H₂O(l) → 2 H₂(g) + O₂(g)
Write a balanced equation for: Solid lead(II) sulfide reacts with aqueous hydrochloric acid to form solid lead(II) chloride and dihydrogen sulfide gas
PbS(s) + 2 HCl(aq) → PbCl₂(s) + H₂S(g)
Balance:
CO + H₂ → CH₄ + H₂O
CO + 3 H₂ → CH₄ + H₂O
Balance:
Fe₂O₃ + H₂ → Fe + H₂O
Fe₂O₃ + 3 H₂ → 2 Fe + 3 H₂O
Write a balanced equation for: Gaseous ammonia reacts with gaseous oxygen to form gaseous nitrogen monoxide and gaseous water
4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(g)
Write a balanced equation for:
Solid magnesium reacts with aqueous copper(I) nitrate to form aqueous magnesium nitrate and solid copper.
Mg(s) + 2 CuNO₃(aq) → Mg(NO₃)₂(aq) + 2 Cu(s)
Write a balanced equation for:
Gaseous dinitrogen pentoxide decomposes to form nitrogen dioxide and oxygen gas.
2 N₂O₅(g) → 4 NO₂(g) + O₂(g)
Balance:
Ca + HNO₃ → Ca(NO₃)₂ + H₂
Ca + 2 HNO₃ → Ca(NO₃)₂ + H₂
Balance:
CH₃OH + O₂ → CO₂ + H₂O
2 CH₃OH + 3 O₂ → 2 CO₂ + 4 H₂O
Balance:
Na₂S + Cu(NO₃)₂ → NaNO₃ + CuS
Na₂S + Cu(NO₃)₂ → 2 NaNO₃ + CuS
Balance:
HCl + O₂ → H₂O + Cl₂
4 HCl + O₂ → 2 H₂O + 2 Cl₂
Balance:
FeS + HCl → FeCl₂ + H₂S
FeS + 2 HCl → FeCl₂ + H₂S
Balance the following and determine if there is a precipitation reaction occur when:
Na₂CO₃ + Pb(NO₃)₂→
Na₂CO₃(aq) + Pb(NO₃)₂(aq) → PbCO₃(s) + 2 NaNO₃(aq)
Balance:
B₂O₃ + HF → BF₃ + H₂O
B₂O₃ + 6 HF → 2 BF₃ + 3 H₂O
Balance:
PH₃ + O₂ → P₄O₁₀ + H₂O
4 PH₃ + 8 O₂ → P₄O₁₀ + 6 H₂O
Write a balanced equation for: Aluminum metal reacts with iron(II) sulfide to form aluminum sulfide and iron metal.
2 Al + 3 FeS → Al₂S₃ + 3 Fe
Write a balanced equation for:
Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid.
Ca₃(PO₄)₂ + 3 H₂SO₄ → 3 CaSO₄ + 2 H₃PO₄
Balance the following and determine if there is a precipitation reaction occur when:
K₂SO₄ + Pb(NO₃)₂ →
K₂SO₄(aq) + Pb(NO₃)₂(aq) → PbSO₄(s) + 2 KNO₃(aq)