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What is the name of a chemical which changes colour when it is mixed with acids or alkali's?
If you want the general term, it's "indicator".
If you want a specific one ... methyl red, litmus, or bromothymol blue are some examples (there are lots of others).
What else can I help you with?
Does acids react with alkalis in a combustion reaction?
No, acids and alkalis do not react in a combustion reaction. Combustion is a chemical reaction that involves a substance combining with oxygen to produce heat and light. Acids and alkalis react in neutralization reactions, where they form water and a salt.
What are the changes to an indicator when acids and alkali are mixed?
When acids and alkalis are mixed, the pH of the solution changes. Indicators such as litmus paper will change color based on the new pH. Acids turn blue litmus paper red, while alkalis turn red litmus paper blue.
What substance like litmus will change colour in acids and alkalis?
Red cabbage juice can change color in acids and alkalis, turning red in acids and blue or green in alkalis. This is due to a pigment called anthocyanin that reacts with hydrogen ions in acidic solutions and hydroxide ions in alkaline solutions, causing a color change.
Are acids and alkali dangerous and why?
On contact to skin and other body tissue many acids and alkalis can cause chemical burns and even burn through flesh. In a ddition to this, many are also toxic.
Who was the first scientist to suggest groupin substances into acids and alkalis?
The first scientist to suggest grouping substances into acids and alkalis was the French chemist Antoine Lavoisier in the 18th century. He categorized these substances based on their chemical properties and reactions.
Is there more than one indicator that changes colour in acids or alkalis?
No, many types of color indicators are known.
Chemical that changes colour in acids and bases?
It's an indicator.
Does Neutral mean safe?
Not really. On the pH scale of Acids and Alkalis, Neutral is the green colour at which a liquid is neither Acid nor Alkalis.
Do acids counteract alkalis?
Yes, acids neutralize alkalis and inverse.
What are the changes to an indicator when acids and alkali are mixed?
When acids and alkalis are mixed, the pH of the solution changes. Indicators such as litmus paper will change color based on the new pH. Acids turn blue litmus paper red, while alkalis turn red litmus paper blue.
What is the name of the chemical that changes colour in acids and bases?
The chemical that changes color in acids and bases is called an indicator. Common indicators include litmus, phenolphthalein, and bromothymol blue. These substances change color in response to pH changes in a solution.
Does acids react with alkalis in a combustion reaction?
No, acids and alkalis do not react in a combustion reaction. Combustion is a chemical reaction that involves a substance combining with oxygen to produce heat and light. Acids and alkalis react in neutralization reactions, where they form water and a salt.
Household acids and alkalis?
households acids and alkalis is formic acid and syitric acid
What substance like litmus will change colour in acids and alkalis?
Red cabbage juice can change color in acids and alkalis, turning red in acids and blue or green in alkalis. This is due to a pigment called anthocyanin that reacts with hydrogen ions in acidic solutions and hydroxide ions in alkaline solutions, causing a color change.
Are acids and alkali dangerous and why?
On contact to skin and other body tissue many acids and alkalis can cause chemical burns and even burn through flesh. In a ddition to this, many are also toxic.
What is the purpose of an indicator in science?
An indicator usually means a substance which changes colour depending on what other substances are present. The most common type are acid/alkali indicators such as litmus, which is red in acids and blue in alkalis.
Does toothpaste contain acids or alkalis?
Most toothpastes contain alkalis , however some can contain acids.
