Balance the Following - Quia



Balancing 1

Balance the Following

1. 2N2H4 + N2O4 → 3N2 + 4H2O

2. 3C2H5OH + PBr3 → 3C2H5Br + H3PO3

3. 4FeS + 7O2 + 4H2O → 2Fe2O3 + 4H2SO4

4. 2KNO3 + 3C + S → K2S + N2 + 3CO2

5. Ca(OH)2 + (NH4)2SO4 → CaSO4 + 2H2O + 2NH3

6. Cu + 2H2SO4 → CuSO4 + 2H2O + SO2

7. 3CaO + P2O5 → Ca3(PO4)2

8. MnO2 + 4HCl → 2H2O + MnCl2 + Cl2

9. 2H2S + 3O2 → 2SO2 + 2H2O

10. 5KClO3 + 3C2H4O → 6CO2 + 5KCl + 6H2O

Balancing 2

Please change the following word equations into formula equations and balance them

1. solid copper plus solid sulfur makes solid copper (I) sulfide

2Cu(s) + S(s) (Cu2S(s)

2. phosphoric acid plus calcium hydroxide makes solid calcium phosphate plus water

2H3PO4(aq) + 3Ca(OH)2 (aq)(Ca3(PO4)2(s) + 6H2O(l)

3. solid silver oxide makes solid silver plus oxygen gas

2Ag2O(s) ( 4Ag(s) + O2(g)

4. solid iron (III) chloride plus sodium hydroxide makes solid iron (III) hydroxide plus aqueous sodium chloride

FeCl3(s) + 3NaOH(aq) ( Fe(OH)3(s) + 3NaCl(aq)

5. solid nickel (II) phosphate plus sulfuric acid makes solid nickel (II) sulfate plus phosphoric acid

Ni3(PO4)2(s) + 3H2SO4(aq) ( 3NiSO4(s) + 2H3PO4(aq)

6. solid zinc carbonate plus hydrochloric acid makes solid zinc chloride plus water plus carbon dioxide

ZnCO3(s) + 2HCl(aq) ( ZnCl2(s) + H2O(l) + CO2(g)

7. aqueous silver nitrate plus aqueous aluminum chloride makes solid silver chloride plus aqueous aluminum nitrate

3AgNO3(aq) + AlCl3(aq) ( 3AgCl(s) + Al(NO3)3(aq)

8. acetic acid plus potassium hydroxide makes aqueous potassium acetate plus water

HC2H3O2(aq) + KOH(aq) ( KC2H3O2(aq) + H2O(l)

9. solid phosphorus plus gaseous iodide makes gaseous phosphorus triodide

2P(s) + 3I2(g) ( 2PI3

10. solid aluminum plus aqueous cupric sulfate makes solid copper plus aqueous aluminum sulfate

2Al(s) + 3CuSO4(aq) ( 3Cu(s) + Al2(SO4)3(aq)

Combination Reactions

A. Complete and balance each of the following

B. COMbination reactions. Name the product.

1. lithium solid and iodine gas ( Lithium iodide

2 Li(s) + I2(g) ( 2 LiI(s)

2. magnesium solid and nitrogen gas (

Magnesium nitride

3Mg(s) + N2(g) ( Mg3N2(s)

3. sulfur dioxide gas and water ( Sulfurous acid

SO2(g) + H2O(/) ( H2SO3(aq)

4. aluminum solid and chlorine gas (

Aluminum chloride

2Al(s) + 3Cl2(g) ( 2 AlCl3(s)

5. lead solid and bromine liquid (

Lead (II) bromide and Lead (IV) bromide

Pb(s) + Br2(/) ( PbBr2(s)

Pb(s) + 2Br2(/) ( PbBr4(s)

6. iron (III) oxide solid and liquid water (

Iron(III) hydroxide

Fe2O3(s) + 3H2O(/) ( 2Fe(OH)3(aq)

7. carbon dioxide gas and liquid water (

Carbonic acid

CO2(g) + H2O(/) ( H2CO3(aq)

8. sulfur solid and oxygen gas (

Sulfur dioxide

S8(s) +8O2(g) ( 8SO2(g)

S8(s) + 12O2(g) ( 8SO3(g)

9. lead (II) oxide and oxygen gas (

Lead (IV) oxide

2PbO(s) + O2(g) ( 2PbO2

10. Sn(s) + Br2(l) ( SnBr2(s)

Sn(s) + 2Br2(l) ( SnBr4(s)

Tin solid plus liquid bromine (

Stannous bromide & Stannic Bromide

11. 2CuCl(l) + Cl2(g) ( 2CuCl2(s)

Cuprous chloride liquid plus chlorine gas

makes Cupric chloride

12. P2O5(g) + 3H2O(l) ( 2H3PO4

diphosphorus pentoxide and water

→phosphoric acid

13. 2Fe(s) + O2(g) ( 2FeO

4Fe(s) + 2O2(g) ( 2Fe2O2(s)

Iron solid plus oxygen gas

→ Ferrous Oxide & Ferric Oxide

14. BaO(s) + H2O(l) ( Ba(OH)2(aq)

Barium oxide solid plus liquid water

→ barium hydroxide

15. 3Ag(s) + P(s)( Ag3P(s)

Silver solid and phosphorus solid

→ Silver Phosphide

16. N2O5(g) + H2O(l) ( 2HNO3(aq)

Dinitrogen pentoxide gas plus liquid water

→ Nitric Acid

17. 4Ga(s) + 3O2(g) ( 2Ga2O3(s)

Gallium solid plus oxygen gas

→ gallium oxide solid

18. K2O(s) + H2O(l) ( 2KOH(aq)

Potassium oxide solid plus water

( potassium hydroxide

Decomposition Reactions

A. Complete and balance each of the following

B. DECOMPOSITION reactions. Name the product.

↓↓Use Classic Names↓↓

1. zinc carbonate solid [pic]

zinc oxide solid plus carbon dioxide gas

ZnCO3(s) [pic] ZnO(s) + CO2(g)

2. barium chlorate solid [pic]

Barium chloride solid plus oxygen gas

Ba(ClO3)2(s) [pic] BaCl2(s) + 3O2(g)

3. ferrous oxide solid [pic]

iron solid plus oxygen gas

2FeO(s) [pic] 2Fe(s) + O2(g)

4. aqueous barium hydroxide [pic]

barium oxide solid plus liquid water

Ba(OH)2(aq) [pic] BaO(s) + H2O(l)

5. barium chloride dihydrate solid [pic]

barium chloride solid plus liquid water

BaCl2• 2H2O(s) [pic] BaCl2(s) + 2H2O(l)

6. cuprous carbonate solid [pic]

Cuprous oxide solid plus carbon dioxide gas

Cu2CO3(s) [pic] Cu2O(s) + CO2(g)

7. aqueous strontium hydroxide [pic]

strontium oxide solid plus liquid water

Sr(OH)2(aq) [pic] SrO(s) + H2O(l)

8. aqueous sulfuric acid [pic]

sulfur trioxide gas plus liquid water

H2SO4(aq) [pic] SO3(g) + H2O(l)

9. mercuric oxide solid [pic]

mercury liquid plus oxygen gas

2HgO(s) [pic]2Hg(l) + O2(g)

10. aluminum chlorate solid [pic]

Aluminum chloride solid plus oxygen gas

2Al(ClO3)3(s) [pic] 2AlCl3(s) + 9O2(g)

↓↓Use Stock Names↓↓

11. aqueous chromium (III) hydroxide [pic]

chromium(III) oxide solid plus liquid water

Cr(OH)3(aq) [pic] Cr2O3(s) + H2O(l)

12. aqueous hypochlorous acid [pic]

dichlorine oxide plus liquid water

2HClO(aq)[pic] Cl2O(g) + H2O(l)

13. aluminum carbonate solid [pic]

aluminum oxide solid plus carbon dioxide gas

Al2(CO3)2(s) [pic]Al2O3(s) + 3CO2(g)

14. barium bromide octahydrate solid [pic]

barium bromide solid plus liquid water

BaBr2• 8H2O(s) [pic]BaBr2(s) + 8H2O(l)

15. aqueous Potassium hydroxide [pic]

Potassium oxide solid plus liquid water

2KOH(aq) [pic]K2O(s) + H2O(l)

16. tin (IV) chloride solid[pic]

tin solid plus chlorine gas

SnCl4(s)[pic]Sn(s) + 2Cl2(g)

17. potassium chlorate solid[pic]

potassium chloride solid plus oxygen gas

2KClO3(s) [pic] 2KCl(s) + 3O2(g)

18. copper (II) sulfate pentahydrate solid [pic]

Copper (II) sulfate solid plus liquid water

CuSO4(s) •5H2O(s)[pic] CuSO4(s) + 5H2O(l)

19. sodium chloride solid [pic]

sodium solid plus chlorine gas

NaCl(s) [pic]Na(s) + Cl2(g)

20. aqueous sulfurous acid [pic]

Sulfur dioxide gas plus liquid water

H2SO3(aq) [pic] SO2(g) + H2O(l)

Single Replacement Reactions

1. aqueous calcium chloride and strontium (

aqueous strontium chloride plus calcium solid

CaCl2(aq) + Sr(s) ( SrCl2(aq) + Ca(s)

2. sodium fluoride and chlorine ( NR

3. aluminum solid and aqueous ferric oxide (

aluminum oxide aqueous plus iron solid

2Al(s) + Fe2O3(aq) ( Al2O3(aq) + 2Fe(s)

4. aqueous Tin (IV) chloride and sodium solid (

tin solid plus aqueous sodium chloride

SnCl4(aq) + 4Na(s) ( Sn(s) + 4NaCl(aq)

5. hydrochloric acid and cadmium solid (

hydrogen gas and aqueous cadmium chloride

2HCl(aq) + Cd(s) ( H2(g) + CdCl2(aq)

6. manganese solid and aqueous mercuric chloride (

aqueous manganese(II) chloride plus liquid mercury

2Mn(s) + 2HgCl2(aq) ( 2MnCl2(aq) + Hg2(l)

manganese solid and aqueous mercuric chloride (

aqueous manganese(III) chloride plus liquid mercury

4Mn(s) + 6HgCl2(aq) ( 4MnCl3(aq) + 3Hg2(l)

7. solid calcium and water (

aqueous calcium oxide plus hydrogen gas

Ca(s) + H2O(l) ( CaO(aq) + H2(g)

8. solid magnesium and aqueous copper (II) bromide (

Magnesium bromide aqueous plus solid copper

Mg(s) + CuBr2(aq) ( MgBr2(aq) + Cu(s)

9. aqueous copper (II) oxide and hydrogen gas (

solid copper plus liquid water

CuO(aq)+ H2(g) ( Cu(s) + H2O(l)

10. hydrobromic acid and barium (

hydrogen gas plus aqueous barium bromide

2HBr(aq) + Ba(s) ( H2(g) + BaBr2(aq)

11. copper solid and aqueous silver nitrate (

aqueous copper(I) nitrate plus solid silver

Cu(s) + AgNO3(aq) ( CuNO3(aq) + Ag(s)

copper solid and aqueous silver nitrate (

aqueous copper (II) nitrate plus solid silver

Cu(s) + 2AgNO3(aq) ( Cu(NO3)2(aq) + 2Ag(s)

12. fluorine gas and aqueous sodium bromide (

aqueous sodium fluoride plus liquid bromine

F2(g) + NaBr(aq) ( NaF(aq) + Br2(l)

13. aqueous lead (II) sulfate and solid nickel (

solid lead plus aqueous nickel sulfate

PbSO4 (aq) + Ni(s) ( Pb(s) + NiSO4(aq)

DOUBLE REPLACEMENT

A. Complete, balance, and name the products for each of the following DOUBLE REPLACEMENT reactions.

1. aqueous Sodium chloride + aqueous Sulfurous acid ( NR

2. aqueous Barium chloride + aqueous Potassium carbonate (

solid barium carbonate and aqueous potassium chloride

BaCl2(aq) + K2CO3(aq)( BaCO3(s) + 2KCl(aq)

3. aqueous Iron (II) sulfide + aqueous Hydrochloric acid ( NR

FeS(aq) + HCl(aq)( FeCl2(aq) + H2S(aq)

4. aqueous Strontium bromide + aqueous Ammonium carbonate (

solid strontium carbonate plus aqueous aluminum bromide

SrBr2(aq) + (NH4)2CO3(aq) ( SrCO3(s) + 2NH4Br(aq)

5. aqueous Sodium iodide + aqueous Lead (II) nitrate (

aqueous sodium nitrate plus Lead solid (II) iodide

2NaI(aq) + Pb(NO3)2(aq) ( 2NaNO3(aq) + PbI2(s)

6. aqueous Aluminum sulfate + aqueous

Calcium hydroxide ( solid aluminum hydroxide plus aqueous calcium sulfate

Al2(SO4)3(aq) + 3Ca(OH)2(aq) ( 2Al(OH)3(s) + 3CaSO4(aq)

7. aqueous Sodium carbonate + aqueous Calcium hydroxide(

aqueous sodium hydroxide plus solid calcium carbonate

Na2CO3(aq) + Ca(OH)2 ( 2NaOH(aq) + CaCO3(s)

8. aqueous Barium nitrate + aqueous Sodium hydroxide (NR

Ba(NO3)2(aq) + NaOH(aq) ( NaNO3(aq) + Ba(OH)2(aq)

9. aqueous Strontium hydroxide + aqueous Sodium sulfite (

solid strontium sulfite plus aqueous sodium hydroxide

Sr(OH)2(aq) + Na2SO3(aq) ( SrSO3(s) + 2NaOH(aq)

10. aqueous Potassium sulfite + aqueous Sodium chloride ( NR

K2SO3(aq) + NaCl(aq) ( KCl(aq) + Na2SO3(aq)

11. aqueous Ammonium chloride + aqueous Silver sulfate (

aqueous ammonium sulfate plus solid silver chloride

2NH4Cl(aq) + Ag2SO4(aq) ( (NH4)2SO4(aq) + 2AgCl(s)

12. aqueous Barium chloride + aqueous Sodium sulfite(

solid barium sulfite plus aqueous sodium chloride

BaCl2(aq) + Na2SO3(aq) ( BaSO3(s) + 2NaCl(aq)

13. aqueous Sodium hydroxide + aqueous ammonium chloride( NR

NaOH(aq) + NH4Cl(aq) ( NaCl(aq) + NH4OH(aq)

└NH3(g) + H2O(l)

14. aqueous Barium nitrate + aqueous Sulfuric acid (

solid barium sulfate plus aqueous nitric acid

Ba(NO3)2(aq) + H2SO4(aq) ( BaSO4(s) + 2HNO3(aq)

15. aqueous Cupric nitrate + aqueous Potassium sulfite(

solid cupric sulfite and aqueous potassium nitrate

Cu(NO3)2(aq) + KSO3(aq) ( CuSO3(s) + KNO3(aq)

Acid – Base Neutralization

Write complete balanced formula equations and name the products for the following:

1. aqueous Sodium Hydroxide + aqueous Nitric Acid →

aqueous Sodium Nitrate + liquid Water

NaOH(aq) + HNO3(aq) → NaNO3(aq) + H2O(l)

2. aqueous Ferric Hydroxide + aqueous Oxalic Acid →

aqueous Ferric Oxalate + liquid Water

2 Fe(OH)3(aq) + 3 H2C2O4(aq) → Fe2(C2O4) 3(aq) + 6 H2O(l)

3. aqueous Phosphoric Acid + aqueous Aluminum Hydroxide →

aqueous Aluminum Phosphate + liquid Water

H3PO4(aq) + Al(OH)3(aq) → AlPO4(aq) + 3 H2O(l)

4. aqueous Hydrochloric Acid + aqueous Rubidium Hydroxide →

aqueous Rubidium Chloride + liquid Water

HCl(aq) + RbOH(aq) → RbCl(aq) + H2O(l)

5. aqueous Perchloric Acid + aqueous Sodium Hydroxide →

aqueous Sodium Perchlorate + liquid Water

HClO4(aq) + NaOH(aq) → NaClO4(aq) + H2O(l)

6. aqueous Sulfuric Acid + aqueous Cesium Hydroxide →

aqueous Cesium Sulfate + liquid Water

H2SO4(aq) + 2 CsOH(aq) → Cs2SO4(aq) + 2 H2O(l)

7. aqueous Calcium oxide + aqueous Hydrobromic Acid →

aqueous Calcium Bromide + Water

CaO(aq) + 2 HBr(aq) → CaBr2(aq) + H2O(l)

8. aqueous thallium oxide + aqueous Sulfurous Acid →

aqueous Magnesium Sulfite + liquid Water

Tl2O3(aq) + 3H2SO3(aq) → Tl2(SO3)3 (aq) + 3 H2O(l)

9. aqueous phosphoric Acid + aqueous sodium oxide →

aqueous sodium phosphate + liquid Water

2H3PO4 (aq) + 3Na2O (aq) → 2Na3PO4 + 3H2O(l)

10. aqueous aluminum oxide + aqueous permanganic acid →

aqueous aluminum permanganate + liquid Water

Al2O3(aq) + 6HMnO4(aq) → 2Al(MnO4)3 + 3 H2O(l)

Gas Formation Reactions

A. Complete, balance, and name the products for each of the following gas formation reactions.

1. aqueous Hydrochloric acid + aqueous Sodium cyanide(

HCl(aq) + NaCN(aq) ( NaCl(aq) + HCN(g)

2. aqueous potassium hydroxide + aqueous ammonium chloride(

KOH(aq) + NH4Cl(aq) ( KCl(aq) + NH4OH (decomposes)

↓

NH3(g) + H2O(l)

3. aqueous barium cyanide + aqueous phosphoric acid(

3Ba(CN)2(aq) + 2H3PO4(aq) ( Ba3(PO4)2 + 6HCN(g)

4. aqueous ammonium acetate + aqueous cesium hydroxide(

NH4C2H3O2(aq) + CsOH(aq) ( Cs C2H3O2(aq) + NH4OH (decomposes)

↓

NH3(g) + H2O(l)

5. aqueous Lithium hydroxide + aqueous ammonium phosphate(

3LiOH(aq) + (NH4)3PO4(aq) ( Li3PO4(aq) + 3NH4OH (decomposes)

↓

3NH3(g) + 3H2O(l)

6. aqueous Hydroiodic acid + aqueous strontium cyanide(

2HI(aq) + Sr(CN)2(aq) ( SrI2(aq) + 2HCN(g)

|Type |Reactants |Write the complete balanced equation in Symbols |

| | |It must include the reactants and products! |

|1. Com |Li(s) + I2(s) ( |2Li(s) + I2(s) ( 2LiI(s) |

| | | |

|2. SR/Com |C6H6(g) + O2(g) ( |Do not worry about this! |

| | | |

| | electricity |electricity |

|3 .Dec |NaCl(aq) ( |2NaCl(aq) ( 2Na(s) + Cl2(g) |

| | | |

|4. SR |CaCl2(aq) + Sr(s) ( |CaCl2(aq) + Sr(s) ( SrCl2(aq) + Ca(s) |

| | | |

|5. DR |FeS(aq) + HCl(aq)( |FeS(aq) + HCl(aq) ( H2S(aq) + FeCl2(aq) NR |

| | | |

|6. DR |NaOH(aq) + HNO3(aq) ( |NaOH(aq) + HNO3(aq) (NaNO3(aq) + H2O(l) |

| | | |

| | Δ |Δ |

|7. Dec |CuSO4 •5H2O(s) ( |CuSO4 •5H2O(s) ( CuSO4(s) + 5H2O(l) |

| | | |

|8. SR |F2(g) + NaBr(aq)( |F2(g) + 2NaBr(aq)( 2NaF(aq) + Br2(l) |

| | | |

|9. DR |9. Ga2O3(aq) + HNO3(aq) ( |Ga2O3(aq) + 6HNO3(aq) ( 2Ga(NO3)3(aq) + 3H2O(l) |

| | | |

|10. DR |10. NH4Br(aq) + NaOH(aq)( |NH4Br(aq) + NaOH(aq)( NH4OH(aq) + NaBr(aq) |

| | | └NH3(g) + H2O(l) |

|11. DR |11. Mg(CN)2(aq) + HCl(aq) ( |Mg(CN)2(aq) + 2HCl(aq) ( MgCl2(aq) + 2HCN(g) |

| | | |

You must completely rewrite the chemical equation of the right hand side including anything that’s above the reaction arrow!

|Type |Reactants |1st Write the complete balanced equation in Symbols: It must include the reactants and |

| | |products |

| | |2nd Name the products. |

|12. Com |Solid barium oxide plus liquid water ( |1st. BaO(s) + H2O(l) ( Ba(OH)2(aq) |

| | | |

| | |2nd barium hydroxide |

| | | |

| | hv | hv |

|13. Dec |Aqueous potassium hydroxide ( |1st 2KOH(aq) ( K2O(s) + H2O(l) |

| | | |

| | |2nd potassium oxide & water |

| | | |

| | MnO2 | MnO2 |

|14. Dec |Solid zinc carbonate ( |1st ZnCO3(s) (ZnO(s) + CO2(g) |

| | | |

| | |2nd zinc oxide & carbon dioxide |

| | | |

|15. Com |Solid barium plus oxygen gas ( |1st 2Ba(s) + O2(g) ( 2BaO(s) |

| | | |

| | |2nd barium oxide |

| | | |

| | heat | heat |

|16. Dec |Aqueous Hypochlorous acid ( |1st 2HClO(aq) ( Cl2O(g) + H2O(l) |

| | | |

| | |2nd dichlorine monoxide & water |

| | | |

| | hv | hv |

|17. Dec |Aqueous barium chlorate ( |1st Ba(ClO3)2(aq) ( BaCl2(s) + 3O2(g) |

| | | |

| | |2nd barium chloride & oxygen |

| | | |

|18. Com |Sulfur dioxide gas plus liquid water ( | |

| | |1st SO2(g) + H2O(l) ( H2SO3(aq) |

| | | |

| | |2nd sulfurous acid |

| | | |

|19. Com |Solid sulfur plus oxygen gas ( |1st S8(s) + 8O2(g) ( 8SO2(g) |

| | | S8(s) + 12O2(g) ( 8SO3(g) |

| | |2nd sulfur dioxide |

| | | sulfur trioxide |

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