Search found 16 matches

by 705137650
Wed Nov 28, 2018 11:17 am
Forum: Dipole Moments
Topic: Polarity of Asymmetrical Molecules
Replies: 4
Views: 109

Re: Polarity of Asymmetrical Molecules

If the atoms in the molecule are symmetrical, the charges are balanced by each other. The molecules are considered to be nonpolar. However, if the molecule is asymmetrical, it is considered to be polar. So if it is lopsided, it is polar.
by 705137650
Wed Nov 28, 2018 11:14 am
Forum: Hybridization
Topic: Ethene Hybrid Orbitals
Replies: 4
Views: 90

Re: Ethene Hybrid Orbitals

One such compund is ethene, in which, both carbon atoms make use of sp2 hybrid orbitals. One of the remaining p orbital for each carbon overlap to form a pi bond. A pi bond consists of two parts where bonding electrons are suppose to be located.
by 705137650
Wed Nov 28, 2018 11:11 am
Forum: Naming
Topic: Coordination number
Replies: 10
Views: 379

Re: Coordination number

the number of atoms or ions immediately surrounding a central atom in a complex or crystal.
by 705137650
Sun Nov 25, 2018 11:26 pm
Forum: Lewis Structures
Topic: Borazine Lewis Structure
Replies: 1
Views: 86

Re: Borazine Lewis Structure

Structure. Borazine is isoelectronic with benzene and has similar connectivity, so it is sometimes referred to as "inorganic benzene". ... However, the borazine ring does not form a perfect hexagon. The bond angle is 117.1° at the boron atoms and 122.9° at the nitrogens, giving the molecul...
by 705137650
Sun Nov 25, 2018 11:22 pm
Forum: Hybridization
Topic: sigma/pi bonds
Replies: 7
Views: 97

Re: sigma/pi bonds

Sigma bonds (σ) are the strongest type of covalent bond, formed by head-on overlapping of atomic orbitals. ... Note that every single bond consists of one sigma bond, and that the double bond is made of one sigma bond and one pi bond. Likewise, a triple bond consists of one sigma bond and two pi bon...
by 705137650
Sun Nov 25, 2018 11:20 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: Polarizability
Replies: 3
Views: 81

Re: Polarizability

Polarizability is the ability to form instantaneous dipoles. It is a property of matter. Polarizabilities determine the dynamical response of a bound system to external fields, and provide insight into a molecule's internal structure.
by 705137650
Wed Nov 14, 2018 5:49 pm
Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
Topic: London Dispersion Forces
Replies: 2
Views: 116

Re: London Dispersion Forces

The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dip...
by 705137650
Wed Nov 14, 2018 5:47 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Electrons and VSEPR
Replies: 4
Views: 73

Re: Electrons and VSEPR

Valence shell electron pair repulsion theory is a model used in chemistry to predict the geometry of individual molecules from the number of electron pairs surrounding their central atoms. It is also named the Gillespie-Nyholm theory after its two main developers, Ronald Gillespie and Ronald Nyholm.
by 705137650
Wed Nov 14, 2018 5:46 pm
Forum: Dipole Moments
Topic: dipole distance
Replies: 3
Views: 76

Re: dipole distance

An electric dipole is a separation of positive and negative charges. The simplest example of this is a pair of electric charges of equal magnitude but opposite sign, separated by some (usually small) distance. A permanent electric dipole is called an electret.
by 705137650
Sun Nov 11, 2018 10:31 pm
Forum: Dipole Moments
Topic: Dipoles
Replies: 2
Views: 62

Re: Dipoles

a pair of equal and oppositely charged or magnetized poles separated by a distance.
by 705137650
Sun Nov 11, 2018 10:30 pm
Forum: Ionic & Covalent Bonds
Topic: Hydrogen bond
Replies: 3
Views: 75

Re: Hydrogen bond

a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
by 705137650
Sun Nov 11, 2018 10:28 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polar and Nonpolar Molecules
Replies: 4
Views: 114

Re: Polar and Nonpolar Molecules

Nonpolar molecules. A molecule may be nonpolar either when there is an equal sharing of electrons between the two atoms of a diatomic molecule or because of the symmetrical arrangement of polar bonds in a more complex molecule.
by 705137650
Thu Oct 18, 2018 9:48 am
Forum: Balancing Chemical Reactions
Topic: Chem Test Balancing Equations [ENDORSED]
Replies: 4
Views: 326

Chem Test Balancing Equations [ENDORSED]

What is the limiting reactant in the reaction NaCO3 + CaCl2 = 2NaCl + CaCO3
2.5g of NaCO3 and 4g of CaCl2
by 705137650
Thu Oct 18, 2018 9:31 am
Forum: Balancing Chemical Reactions
Topic: Chem Test Balancing Equations [ENDORSED]
Replies: 1
Views: 270

Chem Test Balancing Equations [ENDORSED]

If you took 1.35g pill containing 15% salicylic acid by weight how many grams carbon dioxide would you exhale as a result of digesting the saslicylic acid (C7H603)?
by 705137650
Thu Oct 18, 2018 9:28 am
Forum: Balancing Chemical Reactions
Topic: Chem Test Balancing Equations
Replies: 2
Views: 302

Re: Chem Test Balancing Equations

I did not add the oxygen to the reactant side which didnt allow to balance the equation which is C7H6O3 + 7O2 = 7CO2 + 3H2O
by 705137650
Thu Oct 18, 2018 9:16 am
Forum: Balancing Chemical Reactions
Topic: Chem Test Balancing Equations
Replies: 2
Views: 302

Chem Test Balancing Equations

What is the balanced equaTION FOR THE COMPLETE OXIDATION OF SALICYLIC ACID (C7H6O3) WHICH PRODUCES CARBON DIOXIDE AND WATER

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