Question

identifying reaction types & balancing equations
step 1: name the type of chemical reaction
step 2: balance the following chemical equations:

1. ex: synthesis

_n₂ + _h₂ → ___nh₃

1. d

_kclo₃ → _kcl + ___o₂

1. sr

_nacl + _f₂ → _naf + _cl₂

1. s

_h₂ + _o₂ → ___h₂o

1. dr

_agno₃ + _mgcl₂ → _agcl + _mg(no₃)₂

1. dr

_albr₃ + _k₂so₄ → _kbr + _al₂(so₄)₃

1. c

_ch₄ + _o₂ → _co₂ + _h₂o

1. c

_c₃h₈ + _o₂ → _co₂ + _h₂o

1. dr

_fecl₃ + _naoh → _fe(oh)₃ + _nacl

1. s

_p + _o₂ → ___p₂o₅

1. sr

_na + _h₂o → _naoh + _h₂

1. d

_ag₂o → _ag + ___o₂
13.
_co₂ + _h₂o → _c₆h₁₂o₆ + _o₂

1. sr

_k + _mgbr₂ → _kbr + _mg

1. dr

_hno₃(aq) + _ba(oh)₂(aq) → _ba(no₃)₂(aq) + _h₂o(l)

1. c

_c₅h₁₂(g) + _o₂(g) → _co₂(g) + _h₂o(g)

1. dr

_al(s) + _fe₂o₃(aq) → _al₂o₃(aq) + _fe(s)

1. s

_al(s) + _o₂(g) → ___al₂o₃(s)

Explanation:

Step1: Balance example synthesis reaction

$1\text{N}_2 + 3\text{H}_2
ightarrow 2\text{NH}_3$

Step2: Balance decomposition reaction

$2\text{KClO}_3
ightarrow 2\text{KCl} + 3\text{O}_2$

Step3: Balance single replacement reaction

$2\text{NaCl} + 1\text{F}_2
ightarrow 2\text{NaF} + 1\text{Cl}_2$

Step4: Balance synthesis reaction

$2\text{H}_2 + 1\text{O}_2
ightarrow 2\text{H}_2\text{O}$

Step5: Balance double replacement reaction

$2\text{AgNO}_3 + 1\text{MgCl}_2
ightarrow 2\text{AgCl} + 1\text{Mg(NO}_3\text{)}_2$

Step6: Balance double replacement reaction

$2\text{AlBr}_3 + 3\text{K}_2\text{SO}_4
ightarrow 6\text{KBr} + 1\text{Al}_2(\text{SO}_4)_3$

Step7: Balance combustion reaction

$1\text{CH}_4 + 2\text{O}_2
ightarrow 1\text{CO}_2 + 2\text{H}_2\text{O}$

Step8: Balance combustion reaction

$1\text{C}_3\text{H}_8 + 5\text{O}_2
ightarrow 3\text{CO}_2 + 4\text{H}_2\text{O}$

Step9: Balance double replacement reaction

$1\text{FeCl}_3 + 3\text{NaOH}
ightarrow 1\text{Fe(OH)}_3 + 3\text{NaCl}$

Step10: Balance synthesis reaction

$4\text{P} + 5\text{O}_2
ightarrow 2\text{P}_2\text{O}_5$

Step11: Balance single replacement reaction

$2\text{Na} + 2\text{H}_2\text{O}
ightarrow 2\text{NaOH} + 1\text{H}_2$

Step12: Balance decomposition reaction

$2\text{Ag}_2\text{O}
ightarrow 4\text{Ag} + 1\text{O}_2$

Step13: Balance photosynthesis (synthesis) reaction

$6\text{CO}_2 + 6\text{H}_2\text{O}
ightarrow 1\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2$

Step14: Balance single replacement reaction

$2\text{K} + 1\text{MgBr}_2
ightarrow 2\text{KBr} + 1\text{Mg}$

Step15: Balance acid-base (double replacement) reaction

$2\text{HNO}_3(aq) + 1\text{Ba(OH)}_2(aq)
ightarrow 1\text{Ba(NO}_3\text{)}_2(aq) + 2\text{H}_2\text{O}(l)$

Step16: Balance combustion reaction

$1\text{C}_5\text{H}_{12}(g) + 8\text{O}_2(g)
ightarrow 5\text{CO}_2(g) + 6\text{H}_2\text{O}(g)$

Step17: Balance single replacement (redox) reaction

$2\text{Al}(s) + 1\text{Fe}_2\text{O}_3(aq)
ightarrow 1\text{Al}_2\text{O}_3(aq) + 2\text{Fe}(s)$

Step18: Balance synthesis reaction

$4\text{Al}(s) + 3\text{O}_2(g)
ightarrow 2\text{Al}_2\text{O}_3(s)$

Answer:

1. $1\text{N}_2 + 3\text{H}_2

ightarrow 2\text{NH}_3$

1. $2\text{KClO}_3

ightarrow 2\text{KCl} + 3\text{O}_2$

1. $2\text{NaCl} + 1\text{F}_2

ightarrow 2\text{NaF} + 1\text{Cl}_2$

1. $2\text{H}_2 + 1\text{O}_2

ightarrow 2\text{H}_2\text{O}$

1. $2\text{AgNO}_3 + 1\text{MgCl}_2

ightarrow 2\text{AgCl} + 1\text{Mg(NO}_3\text{)}_2$

1. $2\text{AlBr}_3 + 3\text{K}_2\text{SO}_4

ightarrow 6\text{KBr} + 1\text{Al}_2(\text{SO}_4)_3$

1. $1\text{CH}_4 + 2\text{O}_2

ightarrow 1\text{CO}_2 + 2\text{H}_2\text{O}$

1. $1\text{C}_3\text{H}_8 + 5\text{O}_2

ightarrow 3\text{CO}_2 + 4\text{H}_2\text{O}$

1. $1\text{FeCl}_3 + 3\text{NaOH}

ightarrow 1\text{Fe(OH)}_3 + 3\text{NaCl}$

1. $4\text{P} + 5\text{O}_2

ightarrow 2\text{P}_2\text{O}_5$

1. $2\text{Na} + 2\text{H}_2\text{O}

ightarrow 2\text{NaOH} + 1\text{H}_2$

1. $2\text{Ag}_2\text{O}

ightarrow 4\text{Ag} + 1\text{O}_2$

1. $6\text{CO}_2 + 6\text{H}_2\text{O}

ightarrow 1\text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2$

1. $2\text{K} + 1\text{MgBr}_2

ightarrow 2\text{KBr} + 1\text{Mg}$

1. $2\text{HNO}_3(aq) + 1\text{Ba(OH)}_2(aq)

ightarrow 1\text{Ba(NO}_3\text{)}_2(aq) + 2\text{H}_2\text{O}(l)$

1. $1\text{C}_5\text{H}_{12}(g) + 8\text{O}_2(g)

ightarrow 5\text{CO}_2(g) + 6\text{H}_2\text{O}(g)$

1. $2\text{Al}(s) + 1\text{Fe}_2\text{O}_3(aq)

ightarrow 1\text{Al}_2\text{O}_3(aq) + 2\text{Fe}(s)$

1. $4\text{Al}(s) + 3\text{O}_2(g)

ightarrow 2\text{Al}_2\text{O}_3(s)$

(Note: Abbreviations confirmed: D=Decomposition, SR=Single Replacement, S=Synthesis, DR=Double Replacement, C=Combustion, OR=Acid-Base (Double Replacement))