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You can measure the pH value, if the value is below 7, then it is an acid. (1 being the strongest, 7 being neutral.)

There are also some indicators, phenopthalin (think that is what is it called)

which will turn purple, when poured into an acid.

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17y ago

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What can tell us whether something is an acid or alkali in 10 letters?

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An indicator, for example Litmus.


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What shows whether something is an alkali or acid?

You can use indicators (liquid or paper). Universal Indicators (UI) are the best, as with them you can tell if something is acid, neutral or alkali, depending on the colour (there will be a colour indicator). However, you can also use red and blue indicator, but they are less accurate, as although they might be acid (or alkali), they might be neutral as well, so I suggest you use UI. Hope this helps :) Source: Science lessons!


How do you tell the difference between an acid and an alkali using bicarbonate soda?

Only an acid releases carbon dioxide (gas bubbles) from bicarbonate.


What tells us whether something is an acid or an alkali's?

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