Question

part b
the image models what happened after each cup was placed over an effervescent tablet. note the changes in the water level and the air space in both glasses. the tablets are shown to help see how the experiment was setup, but the model represents the air bubbles after the tablets fully dissolved. write down your observations in the space provided.

Explanation:

1. Water Level: Compare the water levels in the two bowls. The bowl with red liquid (left) and yellow liquid (right) – observe if one has a higher or lower water level.
2. Air Space (Bubbles): Look at the air bubbles (from the dissolved effervescent tablet) in the cups over each bowl. Note the quantity, size, or distribution of bubbles. For example, do both cups have similar amounts of bubbles, or is one more bubbly?
3. Liquid Color: The left bowl has red liquid, the right has yellow – this is a visual difference, but the main observations are about water level and air space post - tablet dissolution.

Typical observations (assuming standard effervescent tablet experiment behavior, though the image is key):

• Water Level: If the left bowl (red) has a different water level than the right (yellow), note that. For example, maybe the left has a slightly higher water level, or they are similar.
• Air Bubbles: The air bubbles (representing gas from the tablet) are present in both cups. Maybe the number or density of bubbles is similar, or one cup has more. Since the tablets fully dissolved, the bubbles are the gas released. Also, the water level in the bowls might be related to the volume of gas produced (if gas displaces water, but here cups are over bowls – maybe the water level in the bowl changed due to gas taking space in the cup, causing water to rise or fall in the bowl? Wait, the cups are placed over the bowls, so when the tablet dissolves, it releases gas into the cup, which might affect the pressure and thus the water level in the bowl. But from the image, we can see the water in the bowls (red and yellow) and the bubbles in the cups.

Let's assume (from typical setups) that:

• The water level in the bowl with red liquid (left) and yellow liquid (right) – maybe the left has a bit more water, or they are equal.
• The air bubbles (gas from tablet) are visible in both cups, indicating that the effervescent tablets dissolved and released gas (CO₂, typically) in both cases. The number of bubbles looks similar, suggesting similar tablet dissolution or similar gas production. Also, the water level in the bowls: if the cups have air bubbles (gas), the gas occupies space in the cup, so the pressure above the water in the bowl increases, which might cause the water level in the bowl to rise (since the gas in the cup pushes down on the water surface in the bowl). But from the image, we can see the water in the bowls and the bubbles in the cups.

So, putting it together:

• Both cups (over the red and yellow liquid bowls) contain air bubbles, indicating that the effervescent tablets dissolved and released gas.
• The water level in the bowl with red liquid (left) and the bowl with yellow liquid (right) – observe if there's a difference. For example, maybe the left bowl has a slightly higher water level than the right, or they are approximately the same.
• The color of the liquids is different (red vs. yellow), but that's a setup difference, not a result of the tablet dissolution (unless the tablet reacted with the liquid color, but effervescent tablets usually don't affect color unless the liquid has an indicator, which isn't stated here).

Answer:

• Water Level: The water level in the bowl with red liquid (left) and the bowl with yellow liquid (right) may be similar or show a slight difference (e.g., left has a bit more water).
• Air Bubbles: Air bubbles (from the dissolved effervescent tablet) are present in both cups placed over the bowls, indicating gas release from the tablets. The quantity of bubbles appears relatively similar in both cups.
• Liquid Color: The liquid in the left bowl is red, and in the right bowl is yellow (a setup - related difference, not a post - tablet - dissolution change).