A simulation of the experiment confirming phosphoric acid properties: reaction with alkaline solution.
The checking plate controls the correctness of the reagents choice.
equipment: spawner, destroyer, tablet,
glassware and items: erlenmeyer flasks 250 ml, spatula
solutions: NaOH 2M, H₃PO₄ 1M, H₂O
solids: P₂O₅
indicators: phenolphthalein, methyl orange, litmus (for supplementary checks)
checking plate (test zone) label: "Reaction products"