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583 gold when tested with 14 carat acid changed to green why is that
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∙ 13y ago
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Why testing with phenolphthalein would not show weather the solution is acidic or neutral?
Phenolphthalein turns colorless in acid solutions and very strong base solutions.
What color change is there when you add black copper oxide to sulfuric acid?
When you add black copper oxide to sulfuric acid, the solution turns blue because copper sulfate was formed and it is a colored compound.
Which acid turns yellowish on standing?
Nitric Acid
What is the reaction when carbohydrate is heated with sulfuric acid?
when the carbohydrate is heated with sulphuric acid, the sulphuric acid will ripping the water off the carbons, leaving just the black carbon [the water turns to steam] the carbohydrate become charring
What is the reaction called when sulfuric acid turns black and what is the reaction called?
Sugar Dehydration occurs when sugar is added to sulfuric acid, in the reaction the sugar is broken down into graphite which is black and bubbles with the escaping vapor. This reaction is a exothermic reaction.
Why testing with phenolphthalein would not show weather the solution is acidic or neutral?
Phenolphthalein turns colorless in acid solutions and very strong base solutions.
What color change is there when you add black copper oxide to sulfuric acid?
When you add black copper oxide to sulfuric acid, the solution turns blue because copper sulfate was formed and it is a colored compound.
Mandy is testing an unknown solution to determine whether it is an acid or a base She places a piece of red litmus paper into the solution and the paper turns blue?
it is base
How effective black tea is as an indicator?
Black tea turns red when an acid,(lemon juice) is added and blue when a base(soap solution)is added.
Which acid turns yellowish on standing?
Nitric Acid
What is the reaction when carbohydrate is heated with sulfuric acid?
when the carbohydrate is heated with sulphuric acid, the sulphuric acid will ripping the water off the carbons, leaving just the black carbon [the water turns to steam] the carbohydrate become charring
What is the reaction called when sulfuric acid turns black and what is the reaction called?
Sugar Dehydration occurs when sugar is added to sulfuric acid, in the reaction the sugar is broken down into graphite which is black and bubbles with the escaping vapor. This reaction is a exothermic reaction.
What color does blue litmus turn when exposed to an acid or base?
Acid turns it red and base turns it blue
What acid does milk make when it turns sour?
Tartaric acid
What can show whether a solution contains an acid or a base?
Litmus paper. If it turns red it is an acid. If it turns blue it is a base.
How can you differentiate strong acid from a weak acid using an indicator?
if pH paper is dipped in a strong acid it turns red and if the same pH paper is dipped in the weak acid it turns blue
When you mix hydrochloric acid to calcium carbonate and transfer the gas to mix with lime water what is the lime water testing for?
Carbon dioxide- it turns the lime water milky as calcium carbonate is precipitated.
