Domain: Chemistry / precipitation

turn: 1
modality: image
input: Generate a single element tile from the periodic table. The element must satisfy the following criteria: It is a soft, silvery-white, highly reactive metal. It is located in Period 3 and Group 1 (Alkali Metals). Its atom has the electron configuration [Ne] 3s¹. The tile must contain: the correct element symbol in the center, and the correct atomic number in the top-right corner. The image should be a clean, flat-style graphic of just the single tile with no other content.
output: evaluation_points: The generated content should resemble a single tile from the periodic table in form and layout.

The element symbol 'Na' must be correctly centered within the tile.

The atomic number '11' must be correctly placed in the top-right corner of the tile.

The image should be simple, in a flat graphic style, containing only the periodic table tile with no extraneous elements.

turn: 2
modality: text
input: Based on the element symbol and atomic number from the input image, consider the following: If this element can combine with the hydroxide ion (OH⁻) to form a substance, and that substance has the following properties: it is a white, deliquescent solid at room temperature, highly soluble in water with significant exothermic heat release, and its aqueous solution is strongly alkaline and feels slippery to the touch, then what is the most likely substance formed?

Options:
A. Sodium Chloride (NaCl)
B. Sodium Hydroxide (NaOH)
C. Sodium Carbonate (Na₂CO₃)
D. Sodium Bicarbonate (NaHCO₃)
E. None of the above
output: answer: B

turn: 3
modality: image
input: Generate a test tube containing an aqueous solution of the substance you identified in the previous turn (Sodium Hydroxide, NaOH). The solution should be clear and colorless. To this solution, add a few drops of reagent B = Copper(II) Sulfate solution (CuSO₄). After the addition, a precipitate should form inside the test tube. The precipitate is described as having a pale blue, gelatinous appearance. Do not label or name the precipitate. The background should be a laboratory bench.
output: evaluation_points: The test tube and liquid volume should be reasonable, with the solution filling about one-third of the tube.

The color of the precipitate must be pale blue.

The state/morphology of the precipitate must be gelatinous or amorphous, not crystalline.

The color of the solution after the reaction should be reasonable. Since the precipitate is pale blue and forms from a colorless NaOH solution and a blue CuSO₄ solution, the final supernatant liquid should be a very light blue or nearly colorless, indicating the consumption of most Cu²⁺ ions.

The image background should be a simple laboratory bench, as specified in the turn 3 input text.

turn: 4
modality: text
input: Based on the precipitation phenomenon shown in the input image (pale blue gelatinous precipitate in NaOH solution after adding CuSO₄), if an 'excess' of reagent C = Concentrated Ammonia Solution (NH₃·H₂O) is then added and the mixture is allowed to stabilize, what is the most likely observation?

Options:
A. The pale blue precipitate dissolves completely, forming a deep blue, transparent solution.
B. The pale blue precipitate remains unchanged in color and amount.
C. The pale blue precipitate turns into a white, chalky solid.
D. The pale blue precipitate transforms into a reddish-brown solid.
E. None of the above
output: answer: A