Explain the difference between qualitative and quantitative properties.

1 answer:

3 0

Qualitative properties are properties that are observed and can generally not be measured with a numerical result. They are contrasted to quantitative properties which have numerical characteristics.

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What kind of intermolecular force is MgCl2 and why?

Viefleur [7K]

Answer:

(a) MgCl2 consists of Mg2+ and Cl- ions held together by ionic bonding forces;; PCl3 consists of polar molecules, so intermolecular dipole- dipole forces are present..

Explanation:

Well.. Hope it helps you..

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5 0

3 years ago

For each of the following species: C2+ & O2- Write the molecular orbital energy diagram and fill in the electrons Hint: in e

Tju [1.3M]

Molecular orbital energy is the energy associated with each electron in an atom or molecule.

It is expressed in electron volts (eV) and is determined by the electron's position in the atom or molecule. The molecular orbital energy diagram and fill-in the electrons are given here in each case, the number of valence electrons in the species is determined first; this is followed by the valence molecular orbital diagram for each species.

C2+: Molecular Orbital Energy Diagram

1s2 2s2 2p2

σ2s* ← 0 e-

σ2s ← 2 e-

σ2p* ← 0 e-

σ2p ← 0 e-

π2p* ← 0 e-

π2p ← 0 e-

Bond Order: 0

Stability: Unstable

Magnetism: Diamagnetic (no unpaired electrons)

O2-: Molecular Orbital Energy Diagram

1s2 2s2 2p4

σ2s* ← 0 e-

σ2s ← 2 e-

σ2p* ← 0 e-

σ2p ← 2 e-

π2p* ← 0 e-

π2p ← 2 e-

Bond Order: 1

Stability: Stable

Magnetism: Paramagnetic (2 unpaired electrons)

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6 0

2 years ago

I need help fast thx

Free_Kalibri [48]

I'm guessing you have to balance these.
I took a picture of my working out.

Answer to the first one = 2HCl+CaCO3=CaCl2+H20+CO2
So basically just add a big 2 in front of the first HCl

Answer to second one = 2Ni + O2 = 2NiO
So basically in this one just add a big 2 in front of both of the Ni