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Draw the structure of chlorine pentafluoride (ClF5) according to the VSEPR theory

The molecule is uncharged, so we can find that chlorine is in its +5 oxidation state. Since there are 5 Cl-F bonds, there are 5 bonding electron pairs around the central Cl atom. We also know that chlorine i...
PS
Answered by Peter S. • Chemistry tutor
15633 Views

what is the number of ion in 7.41g of calcium hydoxide Ca(OH)2 ?

number of particles = mole x Avogadro constantAvogadro constant is 6.0 × 10 23 mol –1 .Mr of Ca(OH) 2 is 7.41g mol -1 mole = Mass / Mr = 7.41/7.41 = 1 moleThe question is asking: the number of ion = ?So, in ...
WW
Answered by Wai W. • Chemistry tutor
12541 Views

Explain trend in why the ionisation energies increase across the period

As we travel along the period the nuclear charge increases, this increases the grip the nuclei of the atom has on the electrons. As they are on the same period they experience almost the exactly the same ele...
PJ
Answered by Patrick J. • Chemistry tutor
2241 Views

Why does iodine have a higher boiling point than chlorine?

Neither iodine or chlorine have permanent dipoles because there is no difference in electronegativity between the atoms, so there are no permanent dipole : permanent dipole interactions. There are also no hy...
EE
Answered by Ellie E. • Chemistry tutor
10913 Views

Give the names of three commonly known types of subatomic particles along with their charge and relative masses. In the basic model of the atomic structure, where would one find each of these particles?

The three subatomic particles are electrons, protons and neutrons. Protons are positively charged and have a relative mass of 1 whilst neutrons are neutral in charge and also have a positive charge of 1. Ele...
MH
Answered by Matthew H. • Chemistry tutor
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