Question

balancing equations worksheet

1. h₃po₄ + koh → k₃po₄ + h₂o
2. k + b₂o₃ → k₂o + b
3. hcl + naoh → nacl + h₂o
4. na + nano₃ → na₂o + n₂
5. c + s₈ → __cs₂
6. na + o₂ → __na₂o
7. n₂ + o₂ → __n₂o₅
8. h₃po₄ + mg(oh)₂ → mg₃(po₄)₂ + h₂o
9. naoh + h₂co₃ → na₂co₃ + h₂o
10. koh + hbr → kbr + h₂o
11. na + o₂ → __na₂o
12. al(oh)₃ + h₂co₃ → al₂(co₃)₃ + h₂o
13. al + s₈ → __al₂s₃
14. cs + n₂ → __cs₃n
15. mg + cl₂ → __mgcl₂
16. rb + rbno₃ → rb₂o + n₂
17. c₆h₆ + o₂ → co₂ + h₂o
18. n₂ + h₂ → __nh₃
19. c₁₀h₂₂ + o₂ → co₂ + h₂o
20. al(oh)₃ + hbr → albr₃ + h₂o
21. ch₃ch₂ch₂ch₃ + o₂ → co₂ + h₂o
22. c₃h₈ + o₂ → co₂ + h₂o
23. li + alcl₃ → licl + al
24. c₂h₆ + o₂ → co₂ + h₂o
25. nh₄oh + h₃po₄ → (nh₄)₃po₄ + h₂o
26. rb + p → __rb₃p
27. ch₄ + o₂ → co₂ + h₂o
28. al(oh)₃ + h₂so₄ → al₂(so₄)₃ + h₂o
29. na + cl₂ → __nacl
30. rb + s₈ → __rb₂s
31. h₃po₄ + ca(oh)₂ → ca₃(po₄)₂ + h₂o
32. nh₃ + hcl → __nh₄cl
33. li + h₂o → lioh + h₂
34. ca₃(po₄)₂ + sio₂ + c → casio₃ + __c
35. nh₃ + o₂ → n₂ + h₂o
36. fes₂ + o₂ → fe₂o₃ + so₂
37. c + so₂ → cs₂ + co

Explanation:

1. \( H_3PO_4+3KOH

ightarrow K_3PO_4 + 3H_2O \)

1. \( 6K + B_2O_3

ightarrow 3K_2O+2B \)

1. \( HCl + NaOH

ightarrow NaCl + H_2O \)

1. \( 10Na+2NaNO_3

ightarrow 6Na_2O + N_2 \)

1. \( 4C+S_8

ightarrow 4CS_2 \)

1. \( 4Na+O_2

ightarrow 2Na_2O \)

1. \( 2N_2 + 5O_2

ightarrow 2N_2O_5 \)

1. \( 2H_3PO_4+3Mg(OH)_2

ightarrow Mg_3(PO_4)_2 + 6H_2O \)

1. \( 2NaOH + H_2CO_3

ightarrow Na_2CO_3 + 2H_2O \)

1. \( KOH + HBr

ightarrow KBr + H_2O \)

1. \( 4Na+O_2

ightarrow 2Na_2O \)

1. \( 2Al(OH)_3+3H_2CO_3

ightarrow Al_2(CO_3)_3 + 6H_2O \)

1. \( 16Al + 3S_8

ightarrow 8Al_2S_3 \)

1. \( 6Cs+N_2

ightarrow 2Cs_3N \)

1. \( Mg + Cl_2

ightarrow MgCl_2 \)

1. \( 10Rb+2RbNO_3

ightarrow 6Rb_2O + N_2 \)

1. \( 2C_6H_6+15O_2

ightarrow 12CO_2 + 6H_2O \)

1. \( N_2 + 3H_2

ightarrow 2NH_3 \)

1. \( 2C_{10}H_{22}+31O_2

ightarrow 20CO_2 + 22H_2O \)

1. \( Al(OH)_3+3HBr

ightarrow AlBr_3 + 3H_2O \)

1. \( 2CH_3CH_2CH_2CH_3+13O_2

ightarrow 8CO_2 + 10H_2O \)

1. \( C_3H_8+5O_2

ightarrow 3CO_2 + 4H_2O \)

1. \( 3Li+AlCl_3

ightarrow 3LiCl + Al \)

1. \( 2C_2H_6+7O_2

ightarrow 4CO_2 + 6H_2O \)

1. \( 3NH_4OH + H_3PO_4

ightarrow (NH_4)_3PO_4 + 3H_2O \)

1. \( 3Rb+P

ightarrow Rb_3P \)

1. \( CH_4+2O_2

ightarrow CO_2 + 2H_2O \)

1. \( 2Al(OH)_3+3H_2SO_4

ightarrow Al_2(SO_4)_3 + 6H_2O \)

1. \( 2Na+Cl_2

ightarrow 2NaCl \)

1. \( 16Rb+S_8

ightarrow 8Rb_2S \)

1. \( 2H_3PO_4+3Ca(OH)_2

ightarrow Ca_3(PO_4)_2 + 6H_2O \)

1. \( NH_3 + HCl

ightarrow NH_4Cl \)

1. \( 2Li+2H_2O

ightarrow 2LiOH + H_2 \)

1. \( Ca_3(PO_4)_2+3SiO_2 + 5C

ightarrow 3CaSiO_3+5CO + 2P \)

1. \( 4NH_3+3O_2

ightarrow 2N_2 + 6H_2O \)

1. \( 4FeS_2+11O_2

ightarrow 2Fe_2O_3 + 8SO_2 \)

1. \( 5C+2SO_2

ightarrow CS_2 + 4CO \)

Answer:

(1) 1, 3, 1, 3
(2) 6, 1, 3, 2
(3) 1, 1, 1, 1
(4) 10, 2, 6, 1
(5) 4, 1, 4
(6) 4, 1, 2
(7) 2, 5, 2
(8) 2, 3, 1, 6
(9) 2, 1, 1, 2
(10) 1, 1, 1, 1
(11) 4, 1, 2
(12) 2, 3, 1, 6
(13) 16, 3, 8
(14) 6, 1, 2
(15) 1, 1, 1
(16) 10, 2, 6, 1
(17) 2, 15, 12, 6
(18) 1, 3, 2
(19) 2, 31, 20, 22
(20) 1, 3, 1, 3
(21) 2, 13, 8, 10
(22) 1, 5, 3, 4
(23) 3, 1, 3, 1
(24) 2, 7, 4, 6
(25) 3, 1, 1, 3
(26) 3, 1, 1
(27) 1, 2, 1, 2
(28) 2, 3, 1, 6
(29) 2, 1, 2
(30) 16, 1, 8
(31) 2, 3, 1, 6
(32) 1, 1, 1
(33) 2, 2, 2, 1
(34) 1, 3, 5, 3, 5, 2
(35) 4, 3, 2, 6
(36) 4, 11, 2, 8
(37) 5, 2, 1, 4