Domain: Chemistry / lab_accident

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A substance is contained in a <suitable laboratory container>. The substance must exhibit the following observable characteristics: <white, solid, crystalline powder, opaque>. The background should be a <laboratory environment: bench surface with basic equipment outlines, avoiding clutter and text labels>.
output: evaluation_points: 1. The generated container is correct and is indeed a <watch glass or small beaker>.

2. The color and appearance (crystalline powder) of the target substance match the description '<white, solid, crystalline powder>'.

3. The substance is appropriately contained on the watch glass/in the beaker in 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 has the following properties: <1. It is highly soluble in water. 2. Its aqueous solution reacts with sulfate ions to form a dense, white precipitate. 3. It is toxic if ingested.>, which of the following substances is it most likely to be?

Options:
A. Sodium Chloride (NaCl)
B. Calcium Carbonate (CaCO3)
C. Barium Chloride (BaCl2)
D. Potassium Permanganate (KMnO4)
E. None of the above
output: answer: C

turn: 3
modality: image
input: We will now refer to the substance you identified previously as the 'target substance'. The target substance can undergo <a precipitation reaction when its aqueous solution is mixed with a dilute sulfuric acid solution>. Please generate the state of the experiment on the bench during this normal reaction (the experimental apparatus, the state of the substances, and the reaction phenomenon should all be reasonable and self-consistent).
output: evaluation_points: 1. The selection, connection, and use of experimental apparatus are correct and match the <precipitation reaction between barium chloride and sulfuric acid>.

2. The target substance (barium chloride) is correctly generated in the figure as a <colorless, clear solution in a test tube or beaker>. The substance (barium chloride) must be depicted as having been dissolved in water, consistent with its property of being highly soluble in water as described in turn 2.

3. The reactant <dilute sulfuric acid> is correctly generated in the figure as a <colorless, clear solution, being added from a dropper or another container>. The sulfuric acid must be depicted as dilute, as required by the turn 3 input text.

4. The reaction phenomenon matches the description '<formation of a dense, white precipitate (barium sulfate)>'.

5. The image background is a laboratory bench.

turn: 4
modality: text
input: If, in the normal reaction described above, the experimental procedure was incorrectly altered by <using concentrated sulfuric acid instead of dilute sulfuric acid>, what is the most likely accident to occur?

Options:
A. Violent boiling and splashing of hot, concentrated acid.
B. The reaction fails to produce any precipitate.
C. Release of a toxic, pungent gas (sulfur dioxide).
D. The glassware cracks due to a sudden temperature change.
E. None of the above
output: answer: A

turn: 5
modality: text
input: Regarding the laboratory accident described in the previous question, what is the most correct immediate response?

Options:
A. Immediately neutralize the acid with a sodium bicarbonate solution.
B. Evacuate the area and call emergency services due to toxic gas release.
C. If splashed on skin or clothing, immediately rinse with copious amounts of flowing water for at least 15 minutes and seek medical attention.
D. Cover the spill with sand to absorb the liquid.
E. None of the above
output: answer: C