Answer:
Extended Structure: Sodium chloride or diamonds.
The Same: Protons
Repeating: Atoms or series of atoms
Explanation:
We will use the following equation,
(a) Now, we will calculate the value of as follows.
= 0.377
As, the is 0.21 (which is smaller than the value) this means that equilibrium will shift to the left
.
(b)
= 0.1155
Here, is smaller than which means that the equilibrium will shift to the right.
(c)
= 0.119
Here, is smaller than which means that the equilibrium will shift to the right
.
(d)
= 0.21
Since, here the value of comes out to be equal to the given value. Therefore, this reaction is at equilibrium.
(e)
= 0.36
Here, is higher than the reaction will shift to the left.
1) Atomic number of magnesium (Mg) is 12, it means that it has 12 protons and 12 electrons.
Electron configuration of magnesium atom: ₁₂Mg 1s² 2s² 2p⁶ 3s².
2) Atomic number of aluminium (Al) is 13, it means that it has 13 protons and 13 electrons., but if it lost one electron, it will have 12 electrons and 13 protons and become aluminium cation Al⁺.
Electron configuration of aluminium cation: ₁₃Al⁺ 1s² 2s² 2p⁶ 3s².
3) Atomic number of silicon (Si) is 14, it means that it has 14 protons and 14 electrons., but if it lost two electrons, it will have 12 electrons and 14 protons and become silicon cation Si²⁺.
Electron configuration of silicon cation: ₁₄Si²⁺ 1s² 2s² 2p⁶ 3s².
Answer:
B. saturated.
Explanation:
The important point here is 'at a given temperature'. The amount of solute it can hold will vary according to the temperature.
46. F the mouth.
Because the mouth works as the food smasher and with the addition of saliva the food will be softer to digest.
47. D The Weight
Because weight is mass times the acceleration of gravity and acceleration of gravity is different on moon 1.620 m/s^2.
48.G Two elements
Because compounds are made of two or more than two elements.