This task was created to demonstrate the phosphorus(V) oxide chemical properties .
The student is asked to determine the type of P₂O₅ oxide based on the observations they've seen. The correctness of the student's conclusion is checked by the system.
equipment: spawners, destroyer, tablet, autocheckers
glassware and items: erlenmeyer flask 250 ml, pestle, mortar, spatula
solutions and liquids: H₂O, HNO₃ 2M, HCl 1M, NaOH 1M, Ca(OH)₂ 0.01M
solids: P₂O₅, MnO₂, Na₂SO₄, NaCl,
indicators: phenolphthalein, methyl orange, litmus
checking area labels (from left to right): "neutral oxide", "amphoteric oxide", "basic oxide", "acidic oxide"