CHEMISTRY COMMUNITY

Maxwell S 3E

If there are more electrons shared and thus bonded together, it requires more energy to keep them in place along with then keep the bonds closer together due to the fact there is more energy involved.

Maxwell S 3E

I would try and think about trends, and just begin to understand how something would change in each trend. For example, atomic radius: For the metallic atoms, the have in their standard structure, fewer protons than the gaseous structures. Due to this, there is a higher level of energy pulling into ...

Maxwell S 3E

At what point can the instability reach a limit of explosion or some sort of effect? Is this too complicated of the question?

Maxwell S 3E

Understanding the trends of more than just electronegativity is really important, but in terms of knowing a specific value, it will all be given; it is not required.

Maxwell S 3E

As seen before, they stated that electrons have been removed from Cu to Cu+2, denoting that it is positive in charge so there are less electrons (e-). Then, every energy level requires more and more energy to hold electrons, so naturally they will be released first.

Maxwell S 3E

Unless there are some really unique cases, no, the bond between elements will always be the same as the element itself has not changing composition, just state, and thus energy levels. Unless there is some sort of specific chemical reactions, the only thing will change is physical changes.

Maxwell S 3E

Just looking at the periodic table doesn't typically help in understanding trends in the table itself. One way I would recommend looking at it is just looking up graphs and images representing the changes!

Maxwell S 3E

F is greatest, S is the least. One way to think about it is swinging a ball around a string. The longer the string is, the harder it is to control, the more wild and easier it is for the ball to fall out of "orbit". As the farther the orbital goes, the more energy is required to keep the e...

Maxwell S 3E

Elements have their own electronegative values, so the difference between the elements in the bond then signifies such polarity, or lack thereof it. Understanding the base polarity difference of most common elements in bonding can also help you understand the polarity of more than just covalent bond...

Maxwell S 3E

No, those will be a part of a formula sheet added to the test. A few equations, or at least conversion between one given equation to one that is not given, may be more prudent to remember. For almost all constants, they will be provided.

Maxwell S 3E

When looking at just the equation, E=hv, we can see that as v, the frequency, goes up, the energy goes up. So, to understand why wavelength has higher or lower energy, it directly related to how frequent they oscillate. The wave's oscillation is moving at a constant rate (for electromagnetic waves i...

Maxwell S 3E

When answering the question, if it explicitly asks for nm or m, of course answer in that specific unit. Though, when looking at wavelength, generally answer with nm for the visible wavelength, but the thing about wavelengths is that it ranges so much farther than just nm or m. To properly answer the...

Maxwell S 3E

We are given 3 molecules that are dissolved into water. Whenever molecules are disassociated, they break into their ions. In this case it is K⁺, Cl⁻, S²⁻, PO₄³⁻. The questions asks to find the concentration (molarity) of potassium and sulfide ions, so we first have to find the number of moles of pot...

Maxwell S 3E

If you are given an a molecular equation and the mass of said equation, then, as you said, you must find the molar mass percentage (the percentage of mass that the ion occupies in the molar mass of the molecule). Then you just multiply that percentage by the given mass to calculate what the mass of ...

Maxwell S 3E

The difference between Kelvin and Celsius is just 273 degrees, so when you calculate from Fahrenheit to Kelvin, you still go through the same (F-32)*(5/9) but add 273 afterwards. The answer to your question is yes you can calculate from F to K, but it is still just doing F to C to K.

CHEMISTRY COMMUNITY

Search found 15 matches

Re: Bond length energies

Re: Periodic Trends

Re: Formal Charge on Central Atom

Re: Calculating electronegativity

Re: Electron Configurations

Re: Changes in Form

Re: Periodic Table Trends

Re: Energy levels of orbitals?

Re: Polar and Non-polar Covalent bonds

Re: Numbers to memorize [ENDORSED]

Re: Wavelength and Energy

Re: Units for Wavelength

Re: Question G21 [ENDORSED]

Re: Molar Mass of Ions

Re: Converting between Temperatures (K,C,F)