To determine which of the substances listed is the most acidic, we should consider the typical pH levels of each:
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Hand soap: Generally has a pH that ranges from around 9 to 10, making it basic (not acidic).
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Blood: Has a pH level typically around 7.35 to 7.45, which is slightly basic.
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Coffee: Generally has a pH level between 4.5 and 6, making it acidic.
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Chicken soup: Depending on its ingredients, it can vary, but it often has a pH around 6 to 7, which is close to neutral.
Based on these typical pH levels, coffee is the most acidic substance among the options provided.
1 answer