The type of change is chemical change. This reaction yields compounds with different identities that is carbon dioxide,Calcium chloride and water
Molecules are farthest apart in a gaseous state and closest together in a solid state. Liquid state is in the middle. Just think of the things you encounter everyday, you can't move your hand through a desk because it is comprised of molecules that are held so close together through various forces and molecular interactions.
I'm 99.99% sure that it is C. But what I suggest is that you google the trend of electronegativity, then double check.
Answer:
Explanation:
Ionic (or electrovalent) compounds conduct electricity when there they are in the aqueous state/solution because the charges of ions of these compounds are what carry the electric charges in the aqueous solution as a result of free movement within the aqueous solution which they do not "have" when in there solid state (where they have a highly restricted movement/compacted structure).
Hello!
We have the following data:
m (mass) = 4.6 grams
MM (molar mass) of H2O
H = 2 * 1 = 2 amu
O = 1 * 16 = 16 amu
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MM (molar mass) of H2O = 2 + 16 = 18 g/mol
Solving:
Establishing a relation with Avogadro's number (6.10²³) we have:
18 g of H2O --------------- 6.10²³ molecules
<span>4.6 g of H2O --------------- y molecules
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![18*y = 4.6*6.10^{23}](https://tex.z-dn.net/?f=18%2Ay%20%3D%204.6%2A6.10%5E%7B23%7D)
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![18y = 2.76*10^{24}](https://tex.z-dn.net/?f=18y%20%3D%202.76%2A10%5E%7B24%7D)
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![y = \frac{2.76*10^{24}}{18}](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B2.76%2A10%5E%7B24%7D%7D%7B18%7D%20)
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![\boxed{\boxed{y \approx 1.53*10^{23}\:molecules}}\end{array}}\qquad\quad\checkmark](https://tex.z-dn.net/?f=%5Cboxed%7B%5Cboxed%7By%20%5Capprox%201.53%2A10%5E%7B23%7D%5C%3Amolecules%7D%7D%5Cend%7Barray%7D%7D%5Cqquad%5Cquad%5Ccheckmark)
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