To answer your questions using the context of the pH scale, let's analyze the substances you've mentioned:
-
More Acidic: Lemon or Milk
Lemon is more acidic than milk. Lemons typically have a pH of around 2, while milk is closer to neutral at a pH of around 6-7. -
More Basic: Soap or Bleach
Bleach is more basic than soap. Bleach has a pH typically in the range of 11-13, while most soaps have a pH around 9-10. -
Only Neutral Substance
The only neutral substance among the options you provided (drain cleaner, water, or battery) is water. Water has a pH of 7, making it neutral. -
Strongest Acid on the pH Scale
Among battery, milk, lemon, and tomato, battery acid is the strongest acid. Battery acid, often sulfuric acid, has a very low pH (around 1), making it significantly more acidic than the other substances listed. -
Strongest Base on the pH Scale
From the options drain cleaner, bleach, soap, or eggs, drain cleaner is typically the strongest base. Drain cleaners often contain sodium hydroxide (lye), which can have a pH of 13-14, making it much more basic than the others.
Here's a summary of the answers:
- More acidic: Lemon
- More basic: Bleach
- Only neutral: Water
- Strongest acid: Battery
- Strongest base: Drain cleaner