Write balanced equations describing the reaction of Sr with each of the following: \(\mathrm{O}_{2}, \mathrm{S}, \mathrm{Cl}_{2}, \mathrm{P}_{4}, \mathrm{H}_{2}, \mathrm{H}_{2} \mathrm{O},\) and HCl.

Here are the balanced chemical equations for the reactions of Strontium (Sr) with various substances: 1. With Oxygen (O₂): \[ 2 \mathrm{Sr} + \mathrm{O}_{2} \longrightarrow 2 \mathrm{SrO} \] 2. With Sulfur (S): \[ \mathrm{Sr} + \mathrm{S} \longrightarrow \mathrm{SrS} \] 3. With Chlorine (Cl₂): \[ \mathrm{Sr} + \mathrm{Cl}_{2} \longrightarrow \mathrm{SrCl}_{2} \] 4. With Phosphorus (P₄): \[ 6 \mathrm{Sr} + 2 \mathrm{P}_{4} \longrightarrow 3 \mathrm{Sr}_{3}\mathrm{P}_{2} \] 5. With Hydrogen (H₂): \[ \mathrm{Sr} + \mathrm{H}_{2} \longrightarrow \mathrm{SrH}_{2} \] 6. With Water (H₂O): \[ \mathrm{Sr} + 2 \mathrm{H}_{2}\mathrm{O} \longrightarrow \mathrm{Sr}(\mathrm{OH})_{2} + \mathrm{H}_{2} \] 7. With Hydrochloric acid (HCl): \[ \mathrm{Sr} + 2 \mathrm{HCl} \longrightarrow \mathrm{SrCl}_{2} + \mathrm{H}_{2} \]