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What are substances that are generally sour and have a pH level of 6.9 and below.

User Mschmidt
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2 Answers

5 votes

Answer:

the substance are acids.

Step-by-step explanation:

between 6.0 -6.9 are slightly acidic

User Thierry Lam
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5 votes

Answer: Like, milk?

User MangduYogii
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