Domain: Chemistry / lab_accident

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

2. The color and appearance (powder/crystal/lump/solution, etc.) of the target substance conform to the description '<bright yellow, solid powder>'.

3. The substance is appropriately contained in the container with a suitable quantity.

4. The background is a simple laboratory bench scene.

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 insoluble in water but soluble in carbon disulfide. 2) It melts at a relatively low temperature (around 115°C) to form a mobile, dark red liquid. 3) It burns in air with a characteristic blue flame, producing a pungent, irritating gas. Which of the following substances is it most likely to be?

Options:
A. Iron(III) Oxide (Fe₂O₃) - a reddish-brown solid powder.
B. Sodium Chloride (NaCl) - a white crystalline solid.
C. Sulfur (S) - a bright yellow solid powder.
D. Copper(II) Sulfate Pentahydrate (CuSO₄·5H₂O) - a blue crystalline solid.
E. None of the above.
output: answer: C

turn: 3
modality: image
input: We will subsequently refer to the substance you identified in the previous text as the 'target substance'. The target substance can undergo a reaction described as follows: 'It reacts with a metal when heated, producing a black solid and releasing a large amount of heat.' Please generate the state of the laboratory bench during this normal reaction (the experimental apparatus, the state of the substances, and the reaction phenomena should all be reasonable and self-consistent).
output: evaluation_points: 1. The selection, connection, and use of experimental instruments are correct and match the reaction of sulfur with iron powder.

2. The target substance (sulfur) is generated in the correct form (bright yellow powder) at the correct location in the image, with color and state consistent with the characteristics of bright yellow solid powder.

3. The reactant iron powder is correctly depicted in the image with its correct color (grayish-black powder), state, and location.

4. The reaction phenomenon conforms to 'the mixture glowing red-hot upon initiation, with intense heat release, and the final product being a black, solid lump'. The initial bright yellow color of sulfur should no longer be visible in the final product area.

5. The image background is a simple laboratory bench scene, consistent with the background in Turn 1.

turn: 4
modality: text
input: If, in the normal reaction described above, the experimental setup is incorrectly modified so that 'the reaction is carried out in a sealed test tube or container instead of an open crucible or container,' what is the most likely accident to occur?

Options:
A. The reaction mixture fails to initiate due to lack of oxygen.
B. Pressure buildup inside the sealed container causes it to rupture or explode.
C. The metal reactant oxidizes completely, forming a different, non-magnetic oxide.
D. The target substance sublimes and deposits on the cooler parts of the container, halting the reaction.
E. None of the above.
output: answer: B

turn: 5
modality: text
input: Regarding the experimental accident described in the previous question, what is the most correct way to handle it?

Options:
A. Immediately open the sealed container to release the pressure.
B. Use a fire extinguisher on the container to cool it down.
C. Evacuate the immediate area, alert others, and allow the sealed container to cool completely in a fume hood or behind a safety shield before carefully assessing it from a distance. Do not approach until it is confirmed safe.
D. Submerge the sealed container in a water bath to rapidly cool the contents.
E. None of the above.
output: answer: C