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What is alkalis acid?
Alkali isn't an acid. Alkali and acid are terms used when the pH of a substance is a certain number, for example if a substance has a pH of 1, 2, 3, 4, or 5, then the substance is an acid. If the pH is 11, 12, 13, 14 or 15, then the substance is an alkali.
How can you identify an acid and an alkali?
You identify acids and alkalis using indicators. Indicators are substances which turns a particular colour for acids and another for bases. E.g. litmus, (acid-red, alkali-green) and phenolphthalein. Indicators have a certain pH value. You can only use a particular indicator of a suitable pH value for a particular acid-base reaction
What scale is pH?
PH scale is a scale that shows the substance is PH ....... Example: The substance is PH 7, so it is neutral The substance is PH 3, so it is acid The substance is PH 10, so it is alkali
What is a substance that has a pH between 8 and 14 called?
it is basic pH above 7
What is the difference between and acid and an alkali?
an alkali is much stronger than an acid because an acid has a PH of 1 and an alkali has a PH of 14.
What is alkalis acid?
Alkali isn't an acid. Alkali and acid are terms used when the pH of a substance is a certain number, for example if a substance has a pH of 1, 2, 3, 4, or 5, then the substance is an acid. If the pH is 11, 12, 13, 14 or 15, then the substance is an alkali.
How can you identify an acid and an alkali?
You identify acids and alkalis using indicators. Indicators are substances which turns a particular colour for acids and another for bases. E.g. litmus, (acid-red, alkali-green) and phenolphthalein. Indicators have a certain pH value. You can only use a particular indicator of a suitable pH value for a particular acid-base reaction
What scale is pH?
PH scale is a scale that shows the substance is PH ....... Example: The substance is PH 7, so it is neutral The substance is PH 3, so it is acid The substance is PH 10, so it is alkali
What happens to a substance when it changes from acid to neutral?
a substance which is classified as neutral has a ph of 7- using universal indicator this will result in green. an acid is anything from ph1 to ph6 depending on the concentration of the acid, to neutralise an acid from a ph of 6 or below an alkali is required, so when an acid turns neutral it has either reacted with an alkaline substance or has a higher ph
What is a substance that has a pH between 8 and 14 called?
it is basic pH above 7
What is the difference of litmus paper and a pH paper?
pH.paper tells the strength of an acid and alkali and litmus paper tells that whether the substance is an acid or an alkali.
What is the difference between and acid and an alkali?
an alkali is much stronger than an acid because an acid has a PH of 1 and an alkali has a PH of 14.
What is the difference between an acid and an alkali?
an acid has a pH under 7 an alkali has a pH over 7
Is ph7 a acid alkali or neutral?
pH of 7 is neutral pH below 7 is acidic and above 7 is alkaline.
How do you know pH 11 is acid?
pH 11 is an alkali not an acid
Describe between an acid and an alkali?
Acids have a pH below 7, Alkalis are above 7
How is acid concentration described?
acid concentration is described from the PH level.. if the PH is below 7 the substance is very acidic.
