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Why is nitric acid added before silver nitrate to test for bromine?
Nitric acid is added before silver nitrate in the bromine test to oxidize any interfering substances that could react with silver nitrate. This helps to prevent false positive results and ensures that the precipitation reaction with silver nitrate is due to the presence of bromide ions.
What is the Word equation for silver plus hydrochloric acid?
The word equation for silver plus hydrochloric acid is silver + hydrochloric acid → silver chloride + hydrogen gas.
Is dissolution of a copper penny in nitric acid a chemical reaction?
Yes. Dissolution of a copper penny would indeed be a chemical reaction.
Is it a copper OR zinc penny that dissolves in phosphoric acid?
A zinc penny would dissolve in phosphoric acid, not a copper penny. Zinc reacts with phosphoric acid to form zinc phosphate and hydrogen gas. This reaction does not occur with copper, as copper is a more stable metal and does not react with phosphoric acid in the same way.
What kind of soda changes the color of a penny?
Coke or sprite will change the color of a penny.
Which is more dangerous for a child to swallow a penny minted before or after 1982?
after Cents made before 1982 are bronze - 95% copper and 5% tin and/or zinc. Cents made in later 1982 and afterwards are 97.5% zinc with a thin copper plating. Stomach acid can etch away the copper plating, exposing the underlying zinc core and resulting in zinc toxicity.
What acid is there in coke that helps clean a penny?
This is the phosphoric acid.
Why is nitric acid added before silver nitrate to test for bromine?
Nitric acid is added before silver nitrate in the bromine test to oxidize any interfering substances that could react with silver nitrate. This helps to prevent false positive results and ensures that the precipitation reaction with silver nitrate is due to the presence of bromide ions.
Does a penny contain acid?
Yes! If you swallow a penny, you will most likely die.
What is the Word equation for silver plus hydrochloric acid?
The word equation for silver plus hydrochloric acid is silver + hydrochloric acid → silver chloride + hydrogen gas.
How much is a 1991 silver penny worth in mint condition?
The U.S. never minted a silver penny. It would have more than a dime's worth of silver in it. 1983 and later cents are all made of copper-coated steel so you may have a cent where the copper coating was removed with acid (worth only a penny) or was never plated in the first place (worth a significant amount). It would need to be inspected by a dealer who handles error coins.
Is dissolution of a copper penny in nitric acid a chemical reaction?
Yes. Dissolution of a copper penny would indeed be a chemical reaction.
What corrodes a penny faster?
acid and coke
How does fruit acid clean a penny?
In the periodic table of Einstein the penny is cleaned by the fruit acid dissolving the copper oxide tarnish the tarnish is then washed away which then shows the true beautiful penny beneath! Or just use sand paper.Also when the acid reacts with the tarnish or whatever you have on the penny the acids reaction is it almost like eats off the tarnish and cleans the penny!
Is it a copper OR zinc penny that dissolves in phosphoric acid?
A zinc penny would dissolve in phosphoric acid, not a copper penny. Zinc reacts with phosphoric acid to form zinc phosphate and hydrogen gas. This reaction does not occur with copper, as copper is a more stable metal and does not react with phosphoric acid in the same way.
Why can vinegar clean a dirty penny?
Vinegar contains Acetic acid that reacts with the copper in the penny.
What kind of soda changes the color of a penny?
Coke or sprite will change the color of a penny.
