Domain: Chemistry / daily_chemistry

turn: 1
modality: image
input: Generate a concise chemical laboratory bench scene: A substance is contained in a <correct and appropriate laboratory container type>. The substance must have the following observable appearance: <must include color + physical state (solid/liquid/gas) + form (powder/lump/crystal/solution, etc.) + optional luster/transparency; the name, chemical formula, or element symbols of the substance are prohibited>. The background should be a <laboratory environment: bench surface, basic equipment outlines are sufficient, avoid clutter and text labels>.
output: evaluation_points: 1. The container generated in the image is correct and is indeed a beaker.

2. The color and appearance (powder/crystal/lump/solution, etc.) of the target substance conform to 'pale green, solid, crystalline powder'. The crystals may appear slightly effloresced or oxidized to a yellowish tinge at the edges.

3. The substance is appropriately contained in the beaker, with a suitable amount (e.g., a few grams covering the bottom).

4. The background is a simple laboratory bench scene with a clean surface and perhaps the faint outline of other common glassware like a wash bottle or stirring rod in the background.

turn: 2
modality: text
input: Based on the appearance of the substance in the input image, and given that this substance is known to have the following properties: 1) It is soluble in water, and its aqueous solution is acidic due to hydrolysis. 2) It is a reducing agent and can be easily oxidized by atmospheric oxygen. 3) It contains water of crystallization, which it can lose upon heating. Which of the following substances is it most likely to be?

Options:
A. Copper(II) sulfate pentahydrate (blue crystals)
B. Sodium chloride (colorless cubic crystals)
C. Iron(II) sulfate heptahydrate (pale green crystals)
D. Potassium permanganate (dark purple, almost black crystals)
E. None of the above
output: answer: C

turn: 3
modality: text
input: The substance you identified in the previous context (we'll call it the 'target substance') is commonly used as the main active ingredient or core functional component in which of the following household products?

Options:
A. Laundry detergent (core component: surfactants and enzymes)
B. Moss and algae remover for roofs/patios (core component: ferrous sulfate)
C. Antacid tablets (core component: calcium carbonate or magnesium hydroxide)
D. Bleach for disinfection (core component: sodium hypochlorite)
E. None of the above
output: answer: B

turn: 4
modality: image
input: Generate a real-life scene: Using the household product corresponding to the correct option from the previous question, treat <the name of the object to be treated, which is suitable for the use of the item selected in the previous round, e.g., 'moss and algae growth on a patio slab or garden path'; the name or chemical formula of the FH substance is prohibited>. The image should naturally show a directly observable change 'before/after treatment or during the treatment process'.
output: evaluation_points: 1. The scene depicted matches the described 'outdoor patio or garden path with moss/algae growth'. The setting and target are reasonable.

2. The scene correctly features a commercial moss and algae remover product (e.g., a spray bottle or a bag of granules) and the application method (e.g., sprinkling granules or spraying a solution) is consistent with common usage.

3. There is a clear observable change before/after or during the process. The moss/algae patches turn from vibrant green to a brown, black, or dried-out, dead appearance. The surrounding concrete or stone surface may appear stained with a rusty-orange or brown residue from the iron compounds.

turn: 5
modality: text
input: Based on the household phenomenon shown in the input image and your previous judgment, which of the following chemical reaction equations describes the process occurring?

Options:
A. FeSO₄(aq) → Fe²⁺(aq) + SO₄²⁻(aq) (Dissolution in water)
B. 4FeSO₄ + O₂ + 2H₂SO₄ → 2Fe₂(SO₄)₃ + 2H₂O (Acidic oxidation by air)
C. FeSO₄·7H₂O(s) → FeSO₄(s) + 7H₂O(g) (upon heating)
D. 2FeSO₄ + H₂O₂ + H₂SO₄ → Fe₂(SO₄)₃ + 2H₂O (Oxidation by hydrogen peroxide)
E. None of the above
output: answer: B