Question

drag each tile to the correct location.
classify the chemical equations as being balanced or not balanced.
2co + 2no → 2co₂ + n₂
6co₂ + 6h₂o → c₆h₁₂o₆ + o₂
h₂co₃ → h₂o + co₂
2cu + o₂ → cuo
balanced \tnot balanced

Explanation:

Step1: Count atoms for $2CO + 2NO

ightarrow 2CO_2 + N_2$
Left: C=2, O=2+2=4, N=2; Right: C=2, O=4, N=2

Step2: Count atoms for $6CO_2 + 6H_2O

ightarrow C_6H_{12}O_6 + O_2$
Left: C=6, O=12+6=18, H=12; Right: C=6, H=12, O=6+2=8

Step3: Count atoms for $H_2CO_3

ightarrow H_2O + CO_2$
Left: H=2, C=1, O=3; Right: H=2, C=1, O=1+2=3

Step4: Count atoms for $2Cu + O_2

ightarrow CuO$
Left: Cu=2, O=2; Right: Cu=1, O=1

Answer:

Balanced:

$2CO + 2NO
ightarrow 2CO_2 + N_2$
$H_2CO_3
ightarrow H_2O + CO_2$

Not Balanced:

$6CO_2 + 6H_2O
ightarrow C_6H_{12}O_6 + O_2$
$2Cu + O_2
ightarrow CuO$