Write and balance sodium when it burns in air to form sodium peroxide

Explanation for basic character?

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.