Answer:
What Structures??
Explanation:
Can you please explain the question more
Sunlight is collected from a renewable resource, which is naturally replenished one a human timescale
Answer:
acid rain
Explanation:
When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation.
Answer:
Oxygen
Explanation:
One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains 6.02 X 1023 atoms of oxygen.
Answer:
![\mathrm{Ca}^{2+} \text { and } \mathrm{Cl} \text { - ions are present in } 1: 2 \text { ratio in a solution of aqueous calcium chloride. }](https://tex.z-dn.net/?f=%5Cmathrm%7BCa%7D%5E%7B2%2B%7D%20%5Ctext%20%7B%20and%20%7D%20%5Cmathrm%7BCl%7D%20%5Ctext%20%7B%20-%20ions%20are%20present%20in%20%7D%201%3A%202%20%5Ctext%20%7B%20ratio%20in%20a%20solution%20of%20aqueous%20calcium%20chloride.%20%7D)
Explanation:
Here in Calcium Chloride ionic bond is present in between calcium and chlorine atoms. As we know according to Octet rule calcium have two excess atoms and for matching nearest noble gas electronic configuration. It donate two electrons to gain more stability and form
, while chlorine is deficient from one electron to meet nearest noble gas electronic configuration therefore two chlorine atoms accept excess electron from calcium individually and form two
ions.
![\text { Equation is as follows: } \mathrm{Ca}^{2+}+2 \mathrm{Cl}^{-} \rightarrow \mathrm{CaCl}_{2}](https://tex.z-dn.net/?f=%5Ctext%20%7B%20Equation%20is%20as%20follows%3A%20%7D%20%5Cmathrm%7BCa%7D%5E%7B2%2B%7D%2B2%20%5Cmathrm%7BCl%7D%5E%7B-%7D%20%5Crightarrow%20%5Cmathrm%7BCaCl%7D_%7B2%7D)
Hence aqueous solution of calcium chloride breaks the ionic bond pairing in one
and two
ions: ![\mathrm{CaCl}_{2} \longrightarrow \mathrm{H}_{2} \mathrm{O} \quad \mathrm{Ca}^{2+}(\mathrm{ag})+2 \mathrm{Cl}(\mathrm{ag})](https://tex.z-dn.net/?f=%5Cmathrm%7BCaCl%7D_%7B2%7D%20%5Clongrightarrow%20%5Cmathrm%7BH%7D_%7B2%7D%20%5Cmathrm%7BO%7D%20%5Cquad%20%5Cmathrm%7BCa%7D%5E%7B2%2B%7D%28%5Cmathrm%7Bag%7D%29%2B2%20%5Cmathrm%7BCl%7D%28%5Cmathrm%7Bag%7D%29)