CHEMISTRY COMMUNITY

Jordan Foster

Amphiprotic compounds are generally made with an element that is a metalloid. Similar to how a metalloid can act like a metal or a nonmetal, compounds that are amphiprotic can act as an acid or a base depending on the overall environment.

Jordan Foster

Anything that makes Hydrogen easier to remove will make for a stronger acid. More oxygen atoms pull electrons away from the hydrogen, which makes it easier to remove the hydrogen.

Jordan Foster

Q will eventually reach the value of K, but Q is just a K value before it reaches equilibrium. Q is like a snapshot of how close the ratios are to equilibrium at a point in time.

Jordan Foster

It is possible for it to change because factors like temperature, pressure, or adding or removing a substance can change the rates of the reaction.

Jordan Foster

Chemical equilibrium can work with matter in all states. However, when calculating various concentrations, only gasses and aqueous matter are considered.

Jordan Foster

The only states that need to be included in the equations are the gas and aqueous states. Solids and liquids are equal to 1 so they do not have an impact on the calculations.

Jordan Foster

The main time this can really happen is if the same types of atoms are reacting with each other. Otherwise, atoms and molecules will commonly have different rates of reaction, so k will hardly ever be 1.

Jordan Foster

The arrows incorporate the idea of equilibrium, meaning that the reaction flows in both directions constantly. The goal behind equilibrium is to see how much reactants and products are being used, and how at what rate they are reacting.

Jordan Foster

The reason we talk about hybridization is because the Lewis Structures are only accurate to a certain extent. There are many structures for which Lewis Structures do not work or make sense, which is where hybridization comes into play. Hybridization is a more detailed, yet more accurate version of e...

Jordan Foster

The best way to know about bond angles is to simply memorize which bond angles go with which shapes. Once you have those down, you will always know that a lone pair is going to decrease bond angles, but you do not need to know by exactly how much. The only way to know the exact angles is through exp...

Jordan Foster

It seems like the best way to go about it for me is to just memorize all of the shapes and their respective bond angles, but just continue to draw the 2d Lewis structures. Just be able to recognize the patterns of relationships behind the 2d models and their 3d shapes.

Jordan Foster

Lone pairs of electrons on a central atom will always change the shape of the molecule. Always watch for lone pairs because the overall shape and the bond angles will be altered.

Jordan Foster

Electron density is also related to electronegativity. In a molecule containing several different atoms, the atom that is the most electronegative will tend to have a high electron density.

Jordan Foster

Although covalent bonds are thought of as shared electrons, the sharing is almost always unequal. The atom that is more electronegative is going to attract the electrons for more time than the less electronegative atom.

Jordan Foster

The reason that noble gasses are hardly reactant is because they are already in the ideal form with a full valence shell. Although noble gasses can react in extreme conditions, for the most part other elements are trying to form bonds to resemble the formation of a noble gas.

Jordan Foster

I like to watch crash course and Khan academy as well. As far as other study habits, I like to run through one part of a homework problem, like part a, and then check my answer. If I am correct I continue on to the other parts to reinforce good habits. If I am incorrect, I either read the explanatio...

Jordan Foster

XYZ just represents that there are three pairs of electrons in each shell. Using the XYZ just makes it more clear that the electrons come in pairs rather than a group of six, even though there are six overall in the shell.

Jordan Foster

We are allowed to write it as 2P^3 and receive the same amount of credit. The other way he was explaining is more conceptual and gives a more detailed way of explaining the organization of the electrons. However, both ways are equally effective.

Jordan Foster

Dr. Lavelle also mentioned that we do not need to memorize the conversions for units like KeW to J. We will be given conversion equations on a sheet of constants and equations so as long as you know how to use and manipulate the equations, you will be fine.

Jordan Foster

There are no known examples of a true Blackbody. They are just used to study light and energy because they absorb all frequencies of light and convert it proportionally to heat.

Jordan Foster

Combustion reactions can have any number of products, depending on the reactants. The two products that are present in every combustion reaction are CO2 and H2O.

Jordan Foster

The limiting reactant is the reactant that will run out first. This means there will be excess of the other reactant, making it the non limiting reactant. Most calculations will be based off of the limiting reactant because the excess of the non limiting reactant will not be used.

CHEMISTRY COMMUNITY

Search found 22 matches

Re: Amphiprotic compounds

Re: Strength of Acids and Bases [ENDORSED]

Re: Reverse Reaction, Q and K

Re: Chemical equilibrium [ENDORSED]

Re: Chemical Equilibrium

Re: Equilibrium

Re: K=1 [ENDORSED]

Re: Reaction arrows

Re: Hybridization

Re: Bond Angle

Re: 3D shape Lewis Diagrams

Re: Shapes

Re: electron density

Re: Delta Positive / Negative

Re: Noble Gases

Re: Study Habits [ENDORSED]

Re: XYZ [ENDORSED]

Re: Px, Py, Pz

Re: Converting Between keV and Joules

Re: Blackbody

Re: Combustion Question

Re: Limiting Reactant- Excess