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.
Compare the bottle with HCL water with the bottle filled with salt water and give one difference. What does this tell you about the effect the added substance has on the water?
One difference between the bottle with HCl water and the bottle with salt water is that the HCl water will be acidic while the salt water will not necessarily be acidic. This tells us that different substances added to water can have different effects on its properties, such as acidity.
Comparing the bottle with HCl water to the bottle filled with salt water, one difference is that the HCl water would be acidic, while the salt water would still be neutral. This indicates that the added substance, in this case, HCl, has a stronger effect on water than salt, which does not significantly alter the pH of water.
