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Gisselle Cervantes 2G

Thank you! It all makes sense now.

Gisselle Cervantes 2G

In question 4 of the winter 2013 Practice Final, how do you calculate the number of moles, n?

Gisselle Cervantes 2G

Do bimolecular nucleophilic substitution reactions occur only in one step?

Gisselle Cervantes 2G

No, I believe he told us in lecture to memorize the first ten.

Gisselle Cervantes 2G

Yes! All nucleophiles are positive-charge loving, so they are all lewis bases with a negative charge.

Gisselle Cervantes 2G

Yes, third order and fourth order reactions do exist. But in most chemistry classes the main focus is on first, second, and third order reactions.

Gisselle Cervantes 2G

There are many ways to determine whether a reaction is zero, first, or second order such as by looking at graphs or tables. Generally, the rate of the reaction of a zero order reaction is independent of the concentration of the reactants, Rate=k[A]^0=k. For a first order, the rate of the reaction is...

Gisselle Cervantes 2G

How do you identify whether a voltaic cell needs an inert conductor?

Gisselle Cervantes 2G

In a bond enthalpy problem, when you determine which bonds are being broken and which ones are being formed, how do you calculate the delta H of the reaction? Is it the sum of delta H products minus the sum of delta H reactants or do you simply add the sum of the bonds broken and the sum of the bond...

Gisselle Cervantes 2G

If the height of the mass in the surroundings is lowered, work, w, is positive; if the height is raised, w is negative. Why is this false?

Gisselle Cervantes 2G

Did you mean to ask why does delta U=q? I was looking at the question and it doesn't ask anything about delta H being equal to q. Anyway, delta U is equal to q only when w is equal to 0.

Gisselle Cervantes 2G

What you calculated was only the first part that raises the temperature of the copper, so the second part was added to take into account the heat needed to raise the temperature of the water. When calculating heat change, you need to take into account both the metal and water.

Gisselle Cervantes 2G

Why is xenon difluoride nonpolar? Why is bromine trifluoride nonpolar and trigonal planar while chlorine trifluoride is polar and t-shaped(as illustrated on page 118 figure 4.7 in the textbook)? These two molecules have two lone pairs and three bonded fluorines, so why do they have different molecul...

Gisselle Cervantes 2G

What's the difference between nitro and nitrito?
What's the difference between isocyanato and thiocyanate?
How do these ligands function when bonding?

Gisselle Cervantes 2G

What is an anti bonding molecular orbital and how does it relate to the molecular orbital theory?

Gisselle Cervantes 2G

What is the purpose of spherical polar coordinates and how do they relate to the wave function?

Gisselle Cervantes 2G

Do you want to hear a joke?
Yttrium, Oxygen, Uranium
YOU!

CHEMISTRY COMMUNITY

Search found 17 matches

Re: Q4 2013 Practice Final

Q4 2013 Practice Final

Re: Bimolecular Nucleophilic Substitution Reaction

Re: Alkane nomenclature after decane

Re: nucleophiles

Re: Is there such a thing as a Third Order Reaction?

Re: reaction order

Electrode

Bond Enthalpies

Work

Re: Example 8.15

Re: Chapter 8 Number 19

Polar vs. Nonpolar

Anionic Ligands

Molecular Orbital Theory

Spherical Polar Coordinates

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