There are 6 bottles of water. Salt is added to the first one, a strong acid namely HCl to the 2nd one, a strong base namely calcium hydroxide to the 3rd one, a weak acid namely vinegar to the 4th one, a weak base namely baking soda to the 5th one and the 6th bottle of water is left in the same way.
What will happen to each bottle, what will each bottle look like and how will each bottle smell if we look at the experiment for the fith day?
1. Bottle with added salt: The water will still look like water, but it may have a slightly salty taste and smell to it.
2. Bottle with added HCl: The water will have become acidic and may have changed color. It will likely have a strong, pungent smell.
3. Bottle with added calcium hydroxide: The water will have become basic and may have changed color. It will likely have a slightly soapy smell.
4. Bottle with added vinegar: The water will have become slightly acidic and may have a slightly sour smell. It may also have changed color slightly.
5. Bottle with added baking soda: The water will have become slightly basic and may have a slightly bitter taste and smell. It may also have changed color slightly.
6. Control bottle (no added substances): The water will still look like water and should have no significant changes in smell or taste.
On the fifth day of the experiment, here is what will happen to each bottle:
1. Bottle with salt: The water with salt will still appear clear and transparent. There won't be any noticeable changes in its appearance. It won't have any particular smell.
2. Bottle with HCl: The addition of HCl, a strong acid, will result in the water becoming acidic. It might have a sour smell similar to vinegar or a vinegar-like odor.
3. Bottle with calcium hydroxide: The addition of a strong base, calcium hydroxide, will make the water more alkaline. It may appear cloudy or have a milky white appearance due to the formation of calcium carbonate. It might have a soapy or bitter smell.
4. Bottle with vinegar: The addition of vinegar, a weak acid, will not cause any significant visible changes to the water. It might still appear clear. It will have a strong vinegar-like smell due to the presence of acetic acid.
5. Bottle with baking soda: The addition of baking soda, a weak base, will create a chemical reaction, resulting in the release of carbon dioxide gas. This reaction might cause the water to foam or bubble. It might appear slightly cloudy due to the presence of dissolved carbon dioxide. It might have a mild alkaline or soapy smell.
6. Control bottle (left untouched): The sixth bottle of water, left unchanged, will remain as regular water. It should be clear, transparent, and odorless.
Please note that these observations are based on the assumption that the experiment is conducted under normal conditions. Different concentrations or amounts of substances used may yield varied results.