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.
The acid tells you wether or not te mineral contains lime. Drip any (strong) acid onto the mineral, and if it starts bubbling, the mineral contains lime. It's often used by people who have a fishtank, as rocks which contain lime are bad for most freshwater fish.
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Yes, it is. You can tell weather something is an Alkali, Neutral pr acid via the pH scale or, you can tell if something is an alkali from its consistency; if it is sludgy (like washing-up liquid), it is an alkali. So, I am under the influence that washing-up POWDER is too, an alkali.J.S.P. Aged 11
Test the pH.
An indicator, for example Litmus.
For an acid, the solution remains colourless or unchanged. For an alkali, it would turn fuschia.
you get a scale like this
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!
Yes, litmus paper is used to tell the difference between acid and alkali - blue for alkali and red for acid
The pH scale ranges from acids to alkali's. The strongest acid is red then it gets lighter, (orange, pale, yellow) then it goes to green (neutral) and alkali's are more dark greenish purple colours. Hope this helped. :)
Only an acid releases carbon dioxide (gas bubbles) from bicarbonate.
by adding hydrochloric acid to the substance, and if it turns red its a strong acid, if it turns blue its a strong alkali. if its a colour in between like greeny blue or reddy orange, it means it not as strong. Green is neutral XD
The pH of the solution can tell if it is acidic or alkaline. For acids, pH will be 1 to 7 and for alkaline it will be around 8 to 14. pH of 7 is for neutral solution.