B . Energy is transferred through converting bond energy to memetic
Answer:
the salt dissolves in water because of covalent bonds.
Explanation:
mark me brainliest.
Answer:
3.6 × 10²⁴ atoms of O
Explanation:
Let's consider the molecular formula of silver nitrate: AgNO₃.
We can establish the following relations:
- 1 mol of AgNO₃ has 6.02 × 10²³ molecules of AgNO₃ (Avogadro's number).
- 1 molecule of AgNO₃ has 3 atoms of oxygen.
The atoms of oxygen in 2.0 moles of silver nitrate are:
![2.0molAgNO_{3}.\frac{6.02\times10^{23}moleculeAgNO_{3} }{1molAgNO_{3}} .\frac{3atomO}{1moleculeAgNO_{3}} =3.6\times10^{24}atomO](https://tex.z-dn.net/?f=2.0molAgNO_%7B3%7D.%5Cfrac%7B6.02%5Ctimes10%5E%7B23%7DmoleculeAgNO_%7B3%7D%20%20%7D%7B1molAgNO_%7B3%7D%7D%20.%5Cfrac%7B3atomO%7D%7B1moleculeAgNO_%7B3%7D%7D%20%3D3.6%5Ctimes10%5E%7B24%7DatomO)
Answer: Balanced equation that is formed by combining these two half reactions is
.
Explanation:
A chemical equation which contains same number of atoms on both reactant and product side is called a balanced chemical equation.
For example, ![Cu \rightarrow Cu^{2+} + 2e^{-}](https://tex.z-dn.net/?f=Cu%20%5Crightarrow%20Cu%5E%7B2%2B%7D%20%2B%202e%5E%7B-%7D)
![NO^{-}_{3} + 2e^{-} + 2H^{+} \rightarrow NO^{-}_{2} + H_{2}O](https://tex.z-dn.net/?f=NO%5E%7B-%7D_%7B3%7D%20%2B%202e%5E%7B-%7D%20%2B%202H%5E%7B%2B%7D%20%5Crightarrow%20NO%5E%7B-%7D_%7B2%7D%20%2B%20H_%7B2%7DO)
On cancelling the common species from both these half-reactions, the complete balanced equation will be as follows.
Thus, we can conclude that balanced equation that is formed by combining these two half reactions is
.