Domain: Chemistry / lab_accident

turn: 1
modality: text
input: Which of the following substances are pale yellow or yellow solids at room temperature and are strong oxidizing agents? (Select all that apply.)

Options:
A. Sodium chloride (NaCl)
B. Sulfur (S)
C. Sodium peroxide (Na₂O₂)
D. Potassium permanganate (KMnO₄)
E. Calcium oxide (CaO)
F. Sodium hydroxide (NaOH)
G. None of the above
output: answer: BC

turn: 2
modality: image
input: The target substance is one of the correct options from the previous question. It is a strong oxidizing agent that must be stored in a sealed container to prevent contact with atmospheric moisture and carbon dioxide. Please generate an image showing this target substance stored correctly in its proper container on a laboratory bench.
output: evaluation_points: 1. The container generated must be a sealed, airtight glass or plastic reagent bottle with a proper cap, consistent with storing a moisture-sensitive solid.

2. The substance generated inside the container must be a pale yellow or yellow solid powder, consistent with the appearance of sodium peroxide (Na₂O₂).

3. The substance must be shown completely contained within the sealed bottle, with no visible contact with air or moisture. The amount of powder should be appropriate for a reagent bottle (e.g., filling about half to two-thirds of the container).

4. The background must be a simple, clean laboratory bench scene.

turn: 3
modality: image
input: We will refer to the substance you identified earlier as the 'target substance'. The target substance reacts vigorously with water, producing a gas and significant heat. Please generate the state of the experimental setup on the lab bench during this normal reaction, ensuring all apparatus, material states, and reaction phenomena are reasonable and self-consistent.
output: evaluation_points: 1. The apparatus must be correctly selected and used. A common setup is a beaker containing water, with the target substance being added cautiously. Alternatively, a setup for gas collection (like a test tube over water) could be implied if gas evolution is the focus. The apparatus must match a reaction between sodium peroxide and water.

2. The target substance must be generated as a pale yellow solid powder, shown either on a weighing boat/spatula before addition or as it contacts the water surface.

3. The reactant, water, must be shown as a clear, colorless liquid in a beaker or similar container.

4. The reaction phenomenon must be visible: vigorous bubbling (gas evolution, oxygen) from the point of contact, and potentially steam or heat waves to indicate exothermicity. The mixture may appear as a basic solution forming.

5. The image background must be a laboratory bench.

turn: 4
modality: text
input: If, during the normal reaction described, the experimenter mistakenly uses a large quantity of the target substance all at once instead of adding it slowly and cautiously to water, what is the most likely immediate accident?

Options:
A. A slow, controlled release of gas with no hazard.
B. A violent, exothermic reaction causing possible splashing of hot, corrosive liquid.
C. The formation of a harmless, inert precipitate at the bottom of the container.
D. The immediate and spontaneous combustion of the water.
E. None of the above.
output: answer: B

turn: 5
modality: text
input: For the laboratory accident described in the previous question (violent reaction and splashing), what is the most correct immediate response?

Options:
A. Immediately lean in to observe the reaction more closely.
B. Evacuate the immediate area, alert others, and if splashed on skin, immediately flush the affected area with copious amounts of running water for at least 15 minutes and seek medical attention.
C. Attempt to neutralize the mixture by quickly adding a strong acid.
D. Use a Bunsen burner to try and evaporate the spilled liquid.
E. None of the above.
output: answer: B