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1st Answeracid. on a scale of 1-10, 1-6 are base, 7 is neutral, and 8-10 are acid 2nd AnswerThe above answer is simply wrong. A substance with a pH value of above 9 is considered a base or alkaline.

There is a link below to an article on pH.

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13y ago
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14y ago

they are acids 1 is the strongest and 6 is the weakest acid 7 is neutral

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13y ago

basic

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11y ago

A base

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Q: What does a substance with pH of 9 considered to be?
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What is the causes of acid and base?

A substance is classified as an acid or a base, based on the pH of the substance. pH is the rating of a substance compared to water, which is considered neutral. Water has a pH of 7.0. A substance with a pH less than water is considered acid and higher than water is considered a base. The pH of a substance is determined by a mathematical formula that represents the concentration of hydronium ions in a solution.


Is ketchup a neutral substance?

Ketchup is not considered to be a neutral substance. Ketchup is considered to be an acidic substance with a low pH.


Is a 2.5pH level dangerous?

When the pH level of a substance drops down to 2.5, at that point, the substance is considered to be dangerous. When the pH level of a substance drops down to 2.5, at that point, the substance is considered to be dangerous.


What is a pH level of 9?

A pH level of 9 is a substance that is considered a weak base or alkali. The opposite of an acid. A base is a substance with a molecular ending with OH. Baking soda can have a PH value of 9. In order for it to react chemically as a base, it must be dissolved/ionized in water so that its components can react chemically with other substances.


On the pH scale any substance with a value between 0 and 6 is considered?

An acid. pH of 7 is considered neutral & pH of 8-14 is considered basic.


Is pH 11 a base?

Yes, a substance with pH of 11 would be considered basic.


Is a solution of pH 5 acidic?

It's not very acidic, but yes it is. Any pH lower than seven is considered to be acidic, and any pH higher than seven is basic. If a substance has a pH of 7, that means the substance is considered to be neutral.


What substance has a PH level of 9?

Baking Soda


Where on the pH scale is the bases?

Bases are anything above a 7 on the pH scale. A substance with a pH of 7 is considered neutral.


Difference between pH of 4 and pH of 10?

The pH scale ranges from 0-14 pH. A substance that has a pH of 7 is considered to be "neutral," like pure water. A substance that has a pH less than 7 is said to be acidic, and a substance that has a pH greater than 7 is said to be basic. Therefore, the difference between those two pH levels is that the 4 pH substance is more acidic and the 10 pH substance is more basic. The more basic or acidic, the more caustic and/or corrosive the substance will be.


A substance with a pH level of 9 called?

Alkali or Base


Why water is considered as a pure substance?

Water is considered a pure substance because its pH is 7, which is right in the middle of the scale from 0-14.