Chemical Equations of zinc and copper + theory qns needed
Hi all, I'm new here but in need of help in chemical equations and theory. Have tried reading up some books but none have really given what I really wanted.
1. I am trying to balance the following equations but not sure if its correct, could anyone help me check as it seems weird for me?
- Zinc + sodium carbonate : Zn + Na2CO3 --> ZnCO3 + Na2?
- Copper + Sodium carbonate: Cu + Na2CO3 --> CuCO3 + Na2?
2. I am doing an experiment to see if metals, zinc and copper will react in alkaline solution which is the sodium carbonate solution.
I know that when such metals reacts in certain solutions, a layer of oxide (zinc /copper oxide) will be formed on the surface of the metal.
So if I put the metals in sodium carbonate solution, will there be a layer of oxide (zinc oxide or copper oxide) also formed on the surface of the metals?
If there really is an oxide formed, can I say that this oxide will actually give a weight gain (though the value will be very small) onto these metals if taken for readings?
Greatly appreciated for any answers/help given. Thanks in advance
