Domain: Chemistry / acid_reaction

turn: 1
modality: image
input: Generate a concise chemical laboratory bench scene: A white, fine, crystalline powder is contained in a suitable laboratory container. The background should be a simple laboratory bench with basic equipment outlines, avoiding clutter and text labels.
output: evaluation_points: 1. The generated container is correct and is indeed a reagent bottle or beaker, appropriate for storing a solid powder.

2. The target substance's color and appearance (fine, white, crystalline powder) matches the described morphological features.

3. The substance is correctly contained in the container (no special storage requirements like oil immersion), and the quantity is appropriate.

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 decomposes upon heating to release a colorless gas that turns limewater milky. (2) Its aqueous solution is slightly alkaline. (3) It reacts with strong acids to release the same colorless gas. Which of the following substances is it most likely to be?
Options:
A. Sodium Carbonate (Na2CO3)
B. Sodium Chloride (NaCl)
C. Calcium Carbonate (CaCO3)
D. Sodium Bicarbonate (NaHCO3)
E. None of the above
output: answer: D

turn: 3
modality: image
input: We will refer to the substance you identified previously as the 'target substance'. Now, there are two test tubes placed side-by-side. The left tube contains a moderate amount of dilute hydrochloric acid (HCl, approx. 1M). The right tube contains a moderate amount of dilute sulfuric acid (H2SO4, approx. 1M). An identical amount of the target substance (in its solid, powdered form) is simultaneously added to both tubes. Please generate an image representing the phenomena in both test tubes at the same moment during the reaction. The background is a simple laboratory bench.
output: evaluation_points: 1. The image accurately depicts two test tubes, placed side-by-side (left and right). The liquid volume in each tube is safe and reasonable.

2. The solution colors match the setting: 'The left tube contains a colorless dilute hydrochloric acid solution. The right tube contains a colorless dilute sulfuric acid solution.'

The solution colors match the setting: The left tube contains a colorless dilute hydrochloric acid solution. The right tube contains a colorless dilute sulfuric acid solution.

The phenomenon in the left tube matches the setting: Vigorous effervescence (bubbling) is observed as the target substance reacts with dilute hydrochloric acid, releasing a colorless gas.

The phenomenon in the right tube matches the setting: Effervescence (bubbling) is also observed as the target substance reacts with dilute sulfuric acid, releasing a colorless gas. The reaction rate may appear visually similar or slightly different, but both produce gas.

turn: 4
modality: text
input: Observing the input image, the reactions in both tubes with the target substance (sodium bicarbonate) produce gas. Considering the chemical principles behind acid-carbonate reactions, what is the most fundamental reason for the production of gas in both cases?
Options:
A. The target substance is a strong base neutralizing the acids.
B. The acids are oxidizing agents attacking the metal ion in the salt.
C. The bicarbonate anion (HCO3-) reacts with H+ ions to form unstable carbonic acid (H2CO3), which rapidly decomposes into carbon dioxide (CO2) gas and water.
D. The reactions are simple double displacement (metathesis) reactions forming a precipitate.
E. None of the above.
output: answer: C