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Type: Open-Ended
Category: Acids and Bases
Level: Grade 7
Score: 5
Tags: acid, base
Author: mariap
Last Modified: 9 years ago

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Acids and Bases Question

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Grade 7 Acids and Bases

Given the list below, which includes pH values:

• Lemons - pH 2
• Seawater - pH 8
• Grapefruit - pH 3
• Urine - pH 6
• Saliva - pH 6
• Vinegar - pH 2
• Tomato Juice - pH 4
• Oven Cleaner - pH 13
• Gastric Acid - pH 2
• Soap - pH 12

Arrange the acids in order of increasing levels of alkalinity (basicity).