The pH scale ranges from 0–14: 0.0–6.9 is acidic; 7.0 is neutral; ... Vinegar is very acidic, with a pH of 2–3. Apple cider vinegar is nutritionally similar to other types of vinegar.

T he term “acidic foods” refers to items that have a low pH level, meaning they are more acidic on the pH scale (0 to 14, with 7 being neutral). These foods can affect everyth ...

The pH scale measures the acidity or alkalinity of a substance, ranging from 0 to 14, with values below 7 representing acidity, above 7 representing alkalinity, and 7 representing neutrality.

To use everyday examples, vinegar is very acidic, with a pH of about 2. Conversely, bleach is highly alkaline, with a pH of about 13.5. Importantly, this scale only applies to water-based liquids.

What is the pH scale? The pH scale shows how acidic a substance is. Learn what pH means and how the pH scale s measured in this KS3 chemistry guide.