Search found 31 matches

by Abraham De Luna
Sun Dec 01, 2019 11:45 pm
Forum: Naming
Topic: Water in Coordination Compounds
Replies: 7
Views: 25

Re: Water in Coordination Compounds

It is to emphasize that the oxygen is what is bonded and not the hydrogen.
by Abraham De Luna
Sun Dec 01, 2019 11:43 pm
Forum: Naming
Topic: Roman Numeral
Replies: 13
Views: 55

Re: Roman Numeral

The roman numeral is the charge of the metal in the compound.
by Abraham De Luna
Sun Dec 01, 2019 11:40 pm
Forum: Naming
Topic: Oxidation
Replies: 14
Views: 87

Re: Oxidation

The oxidation number refers to the charge the molecule has.
by Abraham De Luna
Sun Dec 01, 2019 11:35 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Determing Coordination Number
Replies: 5
Views: 27

Re: Determing Coordination Number

I think the coordination number is the number of bonds attached to the central ion.
by Abraham De Luna
Sun Dec 01, 2019 11:30 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Polydentate
Replies: 2
Views: 20

Re: Polydentate

yes that is what it is.
by Abraham De Luna
Sun Dec 01, 2019 11:25 pm
Forum: Naming
Topic: Order of Ligands
Replies: 4
Views: 25

Re: Order of Ligands

You should list them in alphabetical order based on the root.
by Abraham De Luna
Sun Nov 24, 2019 11:43 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Cis vs Trans
Replies: 21
Views: 97

Re: Cis vs Trans

Cis molecules would be polar and trans molecules are nonpolar.
by Abraham De Luna
Sun Nov 24, 2019 11:41 pm
Forum: Naming
Topic: Order in Naming
Replies: 12
Views: 49

Re: Order in Naming

You must put them in alphabetical order and then consider the charge.
by Abraham De Luna
Sun Nov 24, 2019 11:34 pm
Forum: Amphoteric Compounds
Topic: Amphiprotic
Replies: 11
Views: 64

Re: Amphiprotic

An amphiprotic is a something that can both accept and donate a proton.
by Abraham De Luna
Sun Nov 24, 2019 11:22 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: How to tell?
Replies: 11
Views: 237

Re: How to tell?

Acids will usually have h atoms.
by Abraham De Luna
Sun Nov 24, 2019 11:17 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Bronsted vs. Lewis Acids
Replies: 9
Views: 27

Re: Bronsted vs. Lewis Acids

One of the differences is that bronsted acids donate protons, however Lewis acids accept electrons.
by Abraham De Luna
Sun Nov 17, 2019 8:03 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Water molecules
Replies: 9
Views: 264

Re: Water molecules

Water molecules use both Hydrogen atoms to form a hydrogen bond.
by Abraham De Luna
Sun Nov 17, 2019 7:59 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: types of bonds
Replies: 14
Views: 232

Re: types of bonds

A single bond would have 1 sigma bond, a double bond would have a sigma bond and a pi bond, and a triple bond would have a sigma bond and 2 bonds.
by Abraham De Luna
Sun Nov 17, 2019 7:56 pm
Forum: Hybridization
Topic: Pi and Sigma Bonds
Replies: 17
Views: 299

Re: Pi and Sigma Bonds

The way that it works is that a single bond would have a sigma bond. A double bond would have a sigma bong and pi bond and a triple bond would have a sigma bond and two pi bonds.
by Abraham De Luna
Sun Nov 17, 2019 7:52 pm
Forum: Electronegativity
Topic: Noble Gases
Replies: 19
Views: 78

Re: Noble Gases

Noble gases have no electronegativity sincecthey already have a full octet
by Abraham De Luna
Sun Nov 17, 2019 7:47 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Repulsion strength and Bond Angles
Replies: 12
Views: 39

Re: Repulsion strength and Bond Angles

Yes since the molecule with the lone pair would alter the degrees of the bond angles.
by Abraham De Luna
Sun Oct 27, 2019 10:55 pm
Forum: Bond Lengths & Energies
Topic: H bonding
Replies: 14
Views: 473

Re: H bonding

The presence of hydrogen bonds increases the melting point.
by Abraham De Luna
Sun Oct 27, 2019 10:52 pm
Forum: Electronegativity
Topic: Radius
Replies: 13
Views: 414

Re: Radius

As the electronegativity increases the atomic radius decreases.
by Abraham De Luna
Sun Oct 27, 2019 10:35 pm
Forum: Ionic & Covalent Bonds
Topic: Homework
Replies: 13
Views: 100

Re: Homework

I recommend doing the homework on the chemical bonds section.
by Abraham De Luna
Sun Oct 27, 2019 10:29 pm
Forum: Ionic & Covalent Bonds
Topic: Covalent Bonds
Replies: 11
Views: 70

Re: Covalent Bonds

Yes covalent bonds can only be formed by two non-metals.
by Abraham De Luna
Sun Oct 27, 2019 10:27 pm
Forum: Lewis Structures
Topic: Choosing the central atom
Replies: 16
Views: 52

Re: Choosing the central atom

You choose the central atom by picking the atom that has the lowest ionization energy.
by Abraham De Luna
Sun Oct 20, 2019 11:30 pm
Forum: Trends in The Periodic Table
Topic: ionization energy
Replies: 11
Views: 282

Re: ionization energy

Ionization energy is indeed the energy required to remove an electron from an atom.
by Abraham De Luna
Sun Oct 20, 2019 11:29 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radius
Replies: 7
Views: 55

Re: Atomic Radius

I believe that you find the atomic radius by measuring the distance between the nuclei of two touching atoms.
by Abraham De Luna
Sun Oct 20, 2019 11:26 pm
Forum: Photoelectric Effect
Topic: Speed of Light
Replies: 29
Views: 132

Re: Speed of Light

Yes, it is a constant so it will always be the same.
by Abraham De Luna
Sun Oct 20, 2019 11:25 pm
Forum: Einstein Equation
Topic: When do we use the Einstein Equation?
Replies: 14
Views: 106

Re: When do we use the Einstein Equation?

We would use the equation in order to find the energy of a photon. However, it does have other uses.
by Abraham De Luna
Sun Oct 20, 2019 11:18 pm
Forum: Properties of Light
Topic: What are the units of hertz
Replies: 41
Views: 213

Re: What are the units of hertz

Hz is equivalent to 1 cycle/second.
by Abraham De Luna
Sun Oct 06, 2019 11:32 pm
Forum: SI Units, Unit Conversions
Topic: Avogadro's Number
Replies: 4
Views: 56

Re: Avogadro's Number

Avogadro's number represents the number of atoms in per mol of a substance.
by Abraham De Luna
Sun Oct 06, 2019 11:27 pm
Forum: Limiting Reactant Calculations
Topic: Calculating Theoretical Yield
Replies: 9
Views: 78

Re: Calculating Theoretical Yield

Most of the time the limiting reactant is given in the problem, but it can either be in moles or grams it just depends on the circumstance.
by Abraham De Luna
Sun Oct 06, 2019 11:19 pm
Forum: Balancing Chemical Reactions
Topic: When are atoms lost or created?
Replies: 14
Views: 151

Re: When are atoms lost or created?

The law of conservation of mass states that atoms cannot be created or destroyed.
by Abraham De Luna
Sun Oct 06, 2019 11:13 pm
Forum: Administrative Questions and Class Announcements
Topic: Week 2 Homework Problems [ENDORSED]
Replies: 67
Views: 1442

Re: Week 2 Homework Problems [ENDORSED]

He specified to do either fundamentals or quantum world for homework 2.
by Abraham De Luna
Sat Oct 05, 2019 11:21 pm
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 116
Views: 10600

Re: All students read this sig fig post [ENDORSED]

Should I take sig figs while I am calculating one problem step by step? Should I use sig figs every step or should I just consider the sig figs on the very last calculation? I believe that you should only use significant figures on the last calculation. It is also important to keep in mind that sig...

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