No reaction would occur because copper is more active than silver and silver would be unable to donate electrons to copper.
Answer: The number of moles of excess reagent remain unreacted will be, 6.004 moles.
Explanation : Given,
Moles of 
= 1.332 mol
Mass of 
= 6.504 mol
First we have to calculate the limiting and excess reagent.
The balanced chemical equation is:
From the balanced reaction we conclude that
As, 13 mole of react with 1 mole of
So, 6.504 moles of react with 
moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and is a limiting reagent and it limits the formation of product.
Number of moles remain unreacted = 6.504 mol - 0.5003 mol = 6.004 mol
Therefore, the number of moles of excess reagent remain unreacted will be, 6.004 moles.
B. People can use additional conservation tactics, like sometimes bicycling.
Explanation:
The use of bicycle to cover short distances would be good change in change in behavior that would enhance the conservational tactics in using fossil fuels.
Most hybrid cars still use gasoline. Although they have dualized energy sources.
- Driving hybrid cars more often will not curb the conservation drive for fossil fuel. It will increase more demand for it.
- Driving separate hybrid cars will not solve conservation issue of fossil fuels.
- Driving the car more is no efficient way to curb the reliance on fossil fuels.
The use of bicycles to cover maybe short distances will be a good approach to conserving more fossil fuels.
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Answer:
B. overlap of two d orbitals end to end overlap of p orbital.
Explanation:
Sigma bonds are the strongest type of bonds and they are covalent which is due to the direct or end to end overlap of orbitals. The symbol σ is used to adequately describe the bond that exists in a molecule.
In organic molecules, a single C-C bond is a sigma bond while a multiple C-C bond is composed of one sigma bond together with pi or other bonds that is a double bond has one sigma plus one pi bond, and a triple bond has one sigma plus two pi bonds.
Examples include: s-s orbital, pz-pz orbitals, dz-dz orbital and hybrids like sp-p etc.
Answer:
I believe your answer is B. Each orbit has a specific energy level.
Hope this helped!
