Explanation:The tetrahedral shape is formed by the electrons repulsing one another, which forms the tetrahedron—the shape in which all the electrons are as far away from one another as possible.
Examples include methane (CH4) and ammonium(NH4+).
Methane has a central carbon atom ringed by four hydrogens, which form the "spokes" of the tetrahedral molecule.
Tetrahedral molecules are nonpolar if the four surrounding atoms are the same, in the cases of methane and ammonium, and have a bond angle of 109.5˚.
However, tetrahedral molecules can also be polar if they are like chloroform (CHCl3). The central atom has four electron domains, but they are differently sized.
slab pull
Explanation:
When the more dense crust dives into the asthenosphere, it continues to pull the rest of the crust with it. This is called slab pull.
The pulling effect of a subducting plate on the rest of the plate is known as slab pull.
- In describing plate tectonics and movement of different plates, the term slab pull is frequently used.
- It is used to illustrate the dragging of a plate mass on all its part.
- A slab is a lithospheric plate.
- At a subduction margin, colder plates will sink because they are more denser.
- The whole mass of the plate moves down regardless of how rigid and brittle they are.
Learn more:
Lithosphere brainly.com/question/9582362
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Osmosis by definition is <span>movement of water from a high water concentration to a lower salt concentration.
I hope this helps.
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