Answer: In the three-dimensional structure of methane, CH₄, the hydrogen atoms attached to a carbon atom are aligned <span>
<u>at the corners of a Tetrahedron</u>.
Explanation: In
Methane (CH</span>₄) the central atom (carbon) is bonded to four hydrogen atoms. So, the central atom is having four electron pairs and all pairs are bonding pairs and lacks any lone pair of electron. According to
Valence Shell Electron Pair Repulsion (VSEPR) Theory the central atom with
four bonding pair electrons and
zero lone pair electrons will attain a
tetrahedral geometry with
bond angles of 109°. Hence, the shape of CH₄ is tetrahedral.
Answer:
Image A
Explanation:
The hemisphere experiences summer when it is tilted towards the sun. Image a has the northern hemisphere tilted towards the sun.
Its The Ribosomes That Define That Type Of Cell
Answer:
Aluminium have the most neutrons in the nucleus.
Explanation:
The number of neutrons in the nucleus can be calculated by subtraction of the atomic number from the mass number.
neutrons in aluminium nucleus = 27 - 13 = 14
neutrons in nitrogen nucleus = 14 - 7 = 7
neutrons in helium nucleus = 4 - 2 = 2
neutrons in fluorine nucleus = 19 - 9 = 10
Answer:
A. SrSO4
Explanation:
it is insoluble in water therefore it is the precipitate formed in the reaction