Answer:
CF4
Molecular geometry- tetrahedral
Electron geometry- tetrahedral
NF3
-molecular geometry - trigonal pyramidal
Electron geometry - tetrahedral
OF2
Molecular geometry - bent
Molecular geometry - tetrahedral
H2S
Molecular geometry- bent
Electron geometry - tetrahedral
Explanation:
According to Valence Shell Electron Pair Repulsion Theory, the shape of a molecule depends on the number of electron pairs on the valence shell of the central atom in the molecule.
For all the compounds listed, the central atom has four points of electron density. This correspond to a tetrahedra electron pair geometry. The presence of lone pairs on the central atom of OF2,NF3 and H2S accounts for the departure of the observed molecular geometry from the geometry and idealized bond angle predicted on the basis of the VSEPR theory.
Answer:
iron .. titanium.. nickel....aluminum... sulfur... and calcium
Answer:
C
Explanation:
The high specific heat capacity of water means that it takes much more energy to raise the temperatures of water by one (1) degree than land. This means that on a hot sunny day, land temperatures would increase dramatically while ocean temperatures would only rise slightly. Conversely, at night, the land cools rapidly while oceans cool slowly hence the temperatures drop slightly.
<u>Answer:</u> The number of atoms of carbon present in given number of moles are
<u>Explanation:</u>
We are given:
Number of moles of carbon =
According to mole concept:
1 mole of an element contains number of atoms.
So, of carbon will contain = number of atoms.
Hence, the number of atoms of carbon present in given number of moles are
Answer:
Spina bifida is a condition that affects the spine and is usually apparent at birth. It is a type of Neural Tube Defect (NTD).