The correct answer is that is repulsive forces between specific lone pairs of electrons.
Further Explanation:
The total number of valence electrons of is calculated as,
Total valence electrons (TVE) = [(1) (Valence electrons of O) + (2) (Valence electrons of H)]
In , the total number of valence electrons is 8. Here, oxygen forms single bond with the hydrogen atom and therefore, 2 pair of electrons are used in the formation of two single bonds with hydrogen atom. Remaining 2 pair of electrons are used to complete the octet of oxygen atom. Therefore, contains two bond pairs and two lone pairs (refer to the image attached).
According to the VSEPR theory, central atom oxygen has two bond pair with two lone pair, therefore, has an arrangement. Therefore, these four pairs of electrons spread out as tetrahedral arrangement to minimize lone pair-lone pair and bond pair-bond pair repulsion. Since lone pairs are not considered in the shape of the molecule and therefore, the final shape of water molecule is bent-shape.
Learn more:
1. Molecular shape around the central atom in the amino acid glycine: brainly.com/question/4341225
2. Balanced chemical equation: brainly.com/question/1405182
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Covalent bonding and molecular structure
Keywords: hybridization, water, geometry, sp3, steric number, 3, p orbital, s orbital, Lewis structure, hybridization of water, central atom, carbon, hydrogen, oxygen, shape, double bond, h2o.
Answer is: deposition.
Deposition is a thermodynamic process in which gas transforms into solid without passing through the liquid phase.
For example, forming snow in clouds directly from water vapor.
During deposition phase change, energy is released.
Another example, the phase change H₂(g) → H₂(s) is called deposition and the enthalpy change, ΔH, for this phase change has a negative (-) sign.
A gas changes directly to a solid during deposition, hence option 2 is correct.
Deposition is the process by which a substance goes straight from the gas to the solid state after cooling, bypassing the liquid state. Examples of substances that undergo deposition include naphthalene, camphor, iodine, and ammonium chloride.
The opposite is sublimation, through this process, a gas can become a solid without ever entering the liquid state. When gas particles get extremely cold, it happens.
Learn more about Deposition here:
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Answer: a)
b) 92.1 g
Explanation:
To calculate the moles, we use the equation:
a) moles of
b) moles of
According to stoichiometry :
1 mole of require 2 moles of
Thus 1.173 require= of
Thus is the limiting reagent as it limits the formation of product. Thus will run out first.
is the excess reagent as (3.500-2.346)= 1.154 moles are left unreacted.
2 moles of require 1 mole of
3.500 moles of require= of
Moles of required = (1.750-1.173) = 0.577
Mass of
Thus he should order 92.1 g of the limiting reactant.
Answer:
92.41g
Explanation:
if a sample of magnesium has a mass of 60 g, how many moles of magnesium does the sample contain
Answer : The moles of magnesium will be, 2.5 moles
Explanation : Given,
Mass of magnesium = 60 g
Molar mass of magnesium = 24 g/mole
Formula used :
Now put all the given values in this formula, we get the moles of magnesium.
Therefore, the moles of magnesium will be, 2.5 moles