Which of the following is considered acidic?
Lime water
Soap
vinegar
ammonia
Vinegar is considered acidic.
To determine which of the following substances is considered acidic, you can use pH as an indicator. The pH scale is a measure of the acidity or alkalinity of a substance, ranging from 0 to 14. Substances with a pH less than 7 are considered acidic.
To find the pH of each substance, you can use pH testing strips or pH meters. Alternatively, you can use general knowledge to make an educated guess.
1. Lime water: Lime water is alkaline, not acidic. It contains calcium hydroxide, which makes it basic rather than acidic.
2. Soap: Soap is typically basic rather than acidic. It consists of a salt formed by the reaction of a fatty acid with an alkali.
3. Vinegar: Vinegar is acidic. It is made through the fermentation of ethanol by acetic acid bacteria. Vinegar usually has a pH of around 2 to 3.
4. Ammonia: Ammonia is a weak base, not an acid. It has a pH of about 11 to 12, making it alkaline rather than acidic.
Therefore, out of the given options, vinegar is considered acidic.