# How do you write and balance the chemical equation that relates to this word equation: Solid zinc carbonate is heated and broken down into solid zinc oxide and carbon dioxide gas?

$Z n C {O}_{3} \left(s\right) + \Delta \rightarrow Z n O \left(s\right) + C {O}_{2} \left(g\right) \uparrow$
What does the $\Delta$ symbol mean? Is the equation balanced with respect to mass and charge?