Question

Sakura tested the pH of several solutions. Which substances are acidic?

1) Flavored soda
2) Cranberry juice
3) Dish soap
4) Pickle juice
5) Seawater
6) Lye soap

Answer 1

Substances with a pH less than 7 are acidic, such as flavored soda, cranberry juice, and pickle juice. Substances with a pH greater than 7 are basic, like dish soap and lye soap. Seawater is neutral with a pH of 8.

Step-by-step explanation:

To determine whether a given substance is acidic, basic, or neutral, one must look at the pH value of that substance. The pH scale, which ranges from 0 to 14, provides a measure of how acidic or basic a solution is. By definition, any solution with a pH less than 7 is considered acidic, a pH of exactly 7 is neutral, and a pH greater than 7 is referred to as basic or alkaline.

• Acidic: Flavored soda, Cranberry juice, Pickle juice
• Basic: Dish soap, Lye soap
• Neutral: Seawater

Here are specific examples with their corresponding pH levels:

• Human blood is slightly basic with a pH of 7.4.
• Household ammonia is basic with a pH of 11.0.
• Cherries are acidic with a pH of 3.6.

Note that household ammonia is a common base while substances like cherries and soda are examples of everyday acids.