Determine If the Following Unbalanced Reaction Is Spontaneous or Non-Spontaneous $\Delta$

Short Answer

Determine if the following unbalanced reaction is spontaneous or non-spontaneous at standard conditions.
( $\Delta$ G° = -857, SiO₂; 0, Si; 0, Al; -1582 kJ/mol)
SiO_2(s) + Al_(s) $\rightarrow$ Al₂O_3(s) + Si_(s)