CHEMISTRY COMMUNITY

Aiden Atoori 1C

Yes that is exactly what happens! Good work!

Aiden Atoori 1C

We are given this information on the equation sheet on our tests! Good luck!

Aiden Atoori 1C

activation energy: The minimum energy required for a reaction to occur. Free energy is a thermodynamic quantity equivalent to the capacity of a system to do work.

Aiden Atoori 1C

I think when k is less than 10^-3

Aiden Atoori 1C

Rotational energy refers to the movement around an axis while vibrational refers to moving back and forth on one axis.

Aiden Atoori 1C

4.18 J is specific heat capacity of water while
0.38 J refers to the specific heat capacity of copper.

Aiden Atoori 1C

4.18 J is specific heat capacity of water while
0.38 J refers to the specific heat capacity of copper.

Aiden Atoori 1C

delta g>0 it is nonspontaneous. When delta g<0 it is spontaneous. And when it is equal to zero it is at equilibrium.

Aiden Atoori 1C

You can use either or. I believe log is used more frequently with PH.

Aiden Atoori 1C

I believe in 14B they work for every reaction without exception

Aiden Atoori 1C

K will be greater than one when there are more products in the mixture.

Aiden Atoori 1C

You can determine if it’s spontaneous depending on whether delta G is negativeness or not.

Aiden Atoori 1C

The importance of it is to maintain charge balance.

Aiden Atoori 1C

The reverse reactions is simply the inverse of the forward reaction, which for constant K would be p/r

Aiden Atoori 1C

O2 is just a naturally occurring compound and that is why it’s 0.

Aiden Atoori 1C

Extensive because energy depends on its measure.

Aiden Atoori 1C

You have to express the conjugate acid of the acids that you are given.

Aiden Atoori 1C

In my opinion I believe due to certain factors it is a closed system.

Aiden Atoori 1C

Gas has the highest entropy because it’s state has the highest measure of disorder. Liquids and solids also have entropy but it’s not as great as gas.

Aiden Atoori 1C

A reaction has reached equilibrium when the reaction has stopped progressing, so that the amount of reactants that have turned into products remains constant, and the amount of reactants left over stays constant. The equilibrium constant is the ratio of products to reactants when the reaction has re...

Aiden Atoori 1C

Trouton's rule states that the entropy of vaporization is almost the same value, about 85–88 J K−1 mol−1, for various kinds of liquids at their boiling points. The entropy of vaporization is defined as the ratio between the enthalpy of vaporization and the boiling temperature.

Aiden Atoori 1C

When there is a negative q, heat id negative which means it’s being released.

Aiden Atoori 1C

The expansion of air under constant temperature. Since the air does work on expanding, it loses heat; consequently, heat must be added to the air to maintain it at constant temperature.

Aiden Atoori 1C

Condensation, changing from a gas to liquid state, is releasing energy.

Aiden Atoori 1C

The reactions only pressure was atmospheric which was constant. This is because it was an open reaction.

Aiden Atoori 1C

An endothermic reaction takes place when energy is absorbed from surroundings in the form of heat, and exothermic is when energy is released from the system into the surroundings.

Aiden Atoori 1C

E stands for equilibrium concentration.

Aiden Atoori 1C

Steam will produce more severe burns than boiling water because steam has more heat energy than water due to its latent heat of vaporisation.

Aiden Atoori 1C

It's just like a trend. Lower ph equates stronger acids while higher ones are weaker.

Aiden Atoori 1C

Being aware of the strengths of acids and bases can help determine salts.

Aiden Atoori 1C

The value would simply be the equilibrium value divided by the initial value. I hope that helps!

Aiden Atoori 1C

A go to tip is to use brackets when you are dealing with concentration.

Aiden Atoori 1C

Yes, you are correct.

Aiden Atoori 1C

So if the sum of the enthalpies of the reactants is greater than the products, the reaction will be exothermic.

Aiden Atoori 1C

a ligand is an ion or molecule that binds to a central metal atom to form a coordination complex.

Aiden Atoori 1C

An amphoteric compound is one that can react with both acids and bases.

Aiden Atoori 1C

Degenerate orbitals are orbitals with the same energy. This degeneracy can sometimes be "lifted" by external electric or magnetic fields.

Aiden Atoori 1C

A ligand is an ion or molecule attached to a metal atom by coordinate bonding. Use the textbook chart to name them! Good luck!

Aiden Atoori 1C

Yes, I beleive the central atom can be more than one atom. The text book covers VSEPR formula!

Aiden Atoori 1C

Q: What element is a girl's future best friend?
A: Carbon.

Aiden Atoori 1C

Lone pairs cause distortion in bond angles.

Aiden Atoori 1C

Seesaw has 5 charge clouds, 4 bonds, and one lone pair giving it angles 90 and 120 degrees.

Aiden Atoori 1C

A good trick to distinguish polar and no polar is by drawing a Lewis structure and using the following rules.
1.It is non polar if there are no lone pairs and if all the attached structures are the same.

Aiden Atoori 1C

The acceptor tends to be delt negative while the donor is usually delta positive.

Aiden Atoori 1C

In chemistry, hybridization is the concept of mixing atomic orbitals into new hybrid orbitals
suitable for the pairing of electrons to form chemical bonds in valence bond theory.

Aiden Atoori 1C

A sigma bond is a single bond and becomes a pi bond when another bond is added.

Aiden Atoori 1C

The names are synonymous, there is no difference. The term "bent" or “angular” can be applied to certain molecules to describe their molecular geometry.

Aiden Atoori 1C

You should generally be familiar with bond angles but i do not think I️t is completely necessary to memorize them!

Aiden Atoori 1C

Dipole-dipole forces are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule. Dipole-dipole forces have strengths that range from 5 kJ to 20 kJ per mole. They are much weaker than ionic or covalent bonds and have a significant effect only w...

Aiden Atoori 1C

In chemistry, a radical is an atom, molecule, or ion that has an unpaired valence electron. With some exceptions, these unpaired electrons make radicals highly chemically reactive. Many radicals spontaneously dimerize. Most organic radicals have short lifetimes.

Aiden Atoori 1C

A dipole-induced dipole attraction is a weak attraction that results when a polar molecule induces a dipole in an atom or in a nonpolar molecule by disturbing the arrangement of electrons in the nonpolar species.

Aiden Atoori 1C

The length of the bond is determined by the number of bonded electrons (the bond order). The higher the bond order, the stronger the pull between the two atoms and the shorter the bond length. Generally, the length of the bond between two atoms is approximately the sum of the covalent radii of the t...

Aiden Atoori 1C

There are 3 orbitals in the 4p subshell and in fact every p subshell has 3 orbitals!

Aiden Atoori 1C

Wavelength or lambda is measured in meters per second.

Aiden Atoori 1C

We use it to only find kinetic energy!

Aiden Atoori 1C

de Broglie Equation Definition. λ = h/mv, where λ is wavelength, h is Planck's constant, m is the mass of a particle, moving at a velocity v. de Broglie suggested that particles can exhibit properties of waves.

Aiden Atoori 1C

In our studies currently I do not beleive an anything can be faster than the speed of light!

Aiden Atoori 1C

Degeneracy of an orbital refers to "same energy level". Degenerate" refers to a set of orbitals.

Aiden Atoori 1C

In an atomic emission spectra what does one line or wavelength represent?

Aiden Atoori 1C

In atomic absorbtion spectroscopy are all wavelengths of light absorbed?

Aiden Atoori 1C

What is the right description for the experiment setup in a spectroscopic ecperiment using a sample of hydrogen gas atoms?

Aiden Atoori 1C

Does the photoelectric experiment need to be done under a vacuum?

Aiden Atoori 1C

Are electrons always ejected or are they ejected under certain circumstances. If someone can clear this up for me I would be Grateful.

Aiden Atoori 1C

If 1 million high energy photons hit a metal surface what is the maximum number of electrons that could be ejected from the metal surface? Would it be .5 milllion and if so why?

Aiden Atoori 1C

Does the actual yield refer to the amount of reactants remaining after a reaction is completed?

Aiden Atoori 1C

Can the mass of the products be greater than the total mass of the reactants. If so can you explain to me the logic behind it. Thanks

Aiden Atoori 1C

Can a reaction have more than one limiting reactant and why or why not? I feel like if the reactants are in the same phsyical state than it is possible. If someone can clairfy, that would be gretaly appreciated.

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