Ask Question
ChemistryChemistry
18 January, 01:14

Can we make the goal penny go back to the original color (copper penny?

+3
Answers (1)
  1. 18 January, 01:34
    0
    When a copper penny is heated in a solution of sodium hydroxide mixed with zinc dust, small amounts of zinc dissolve into the surface of the penny. This causes the penny to look silver since there is now a layer of zinc over the outside of the penny.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Can we make the goal penny go back to the original color (copper penny? ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
What are the elements in the "dip" of the periodic table called? Transition Metals Pure Elements Gases Non Metals
Answers (1)
Calculate the theoretical yield of hydrogen gas (in L) at 295 K for a reaction of 1.50 g magnesium with excess hydrochloric acid. If 1.205 L of gas is produced, what is the percent yield of the reaction?
Answers (1)
A tank contains 200 L of fluid in which 30 grams of salt are dissolved. Brine containing 1 g of salt per liter is then pumped into the tank at a rate of 4L/min; the well mixed solution is pumped out at the same rate.
Answers (1)
why do atmoic numbers increase from left to right across any given row of the periodic table
Answers (1)
The solubility of N2 in water at a particular temperature and at a N2 pressure of 1 atm is 6.8 * 10-4 mol L-1. Calculate the concentration of dissolved N2 in water under normal atmospheric conditions where the partial pressure of N2 is 0.78 atm.
Answers (1)
New Questions in Chemistry
5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below
No Answers
How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?
Answers (1)
A certain first-order reaction (A→productsA→products) has a rate constant of 9.90*10-3 s-1s-1 at 45 ∘C∘C. How many minutes does it take for the concentration of the reactant, [A][A], to drop to 6.
Answers (1)
Assign the oxidation number for (NH4) 3PO4
Answers (1)
When gold is melted and formed in a mold to make a piece of jewelry, what type of change is taking place?
Answers (2)
Home » Chemistry » Can we make the goal penny go back to the original color (copper penny?
Sign Up Forgot Password?