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when the penny is reacted with HCl, there must be somesort of area where the copper on the outside of the penny is removed so that the HCl can react with the zinc inside because HCl does not react with copper. Once the HCl reacts with the Zn inside, it will dissapear and therefore become less dense then the ZnCl2 that is formed which causes the penny to float
What else can I help you with?
Why will a penny float in cooking oil?
it will float bc the penny is so light that it should float.
How can a penny float?
A penny will not float in water, mainly because it is denser than water. When the penny is placed in water, it displaces a volume of water equal to its own volume. Since the penny weighs more than the water it displaces, it will sink.So, in order for the penny to float, you must find a liquid that is denser than solid copper -- or whatever metal or alloy a penny is made of. Mercury -- which is a liquid at room temperature -- is denser than copper. Hence, a penny will float in mercury.Possibly surface tension may allow it to float.
How do you make a penny float?
One way to make a penny float is by using the surface tension of water. Carefully place the penny on the surface of water in a bowl or cup, making sure it is placed flat. The surface tension of the water will allow the penny to stay afloat.
Why does a boat float in salt water but not a penny?
penny's aren't tall enough!
How would conduct an experiment to prove single replacement occurs when Zn and HCl are combined?
get some Zn metal (or use a new penny) and get some HCl. You will see the H2 gas bubble and the Zn will corrode
Why doesn't a penny float in the water?
because you're fat
Why will the penny float if you toss it in a wishing well full of a liquid denser than the coin?
no it wuld float on surface......
Can you make a penny float?
No, pennies are too heavy to float on water due to their density. However, you can create the illusion of a floating penny by carefully balancing it on the surface tension of the water.
How old are the penny's from Britain that say new penny's?
The British "New Penny" was first issued in 1971, along with the Two New Pence and the Half New Penny. From 1982, the "New" was dropped and the coin was known as the 'Penny" again. This is true for all British decimal coins, the word "New" no longer being used from 1982.
Why would a golf ball float on water and not a penny?
Only special bought golf balls float, and they are designed with air inside. That air obviously is lighter than water and will always rise, a penny however has no air and is stream lined to slide through the water. :D
Who is a famous New Zealand Basketball player?
kert penny kert penny kert penny kert penny
Why do you never see any 1973 British copper coins?
Look harder. In 1973, Britain minted - * Two New Penny (Proof FDC) * One New Penny (Proof FDC) * One New Penny for general circulation * Half New Penny (Proof FDC) * Half New Penny for general circulation
