CHEMISTRY COMMUNITY

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What are the past averages on Lavelle's final exams?? I am freaking out

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How is an orange a stronger acid than vinegar?

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Why does aqueous matter and are we going to need to know it for the final exam?

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How do we calculate the formal charge for cation and anion?

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What makes something a strong acid?

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What's the pH of [H+]=10^-5? What are the steps to finding the pH?

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Does Professor Lavelle curve any exams or the final grade?

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I'm scared that my final grade won't be as high as I would like it to be so I was wondering if I should retake chem 14A next quarter?

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Do any of you know if calculators will be allowed on the final exam? On test 2 we couldn't use calculators so that's why I'm asking.

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Will professor Lavelle be hosting any study sessions? I know he has UA's who do some but will THE Laurence Lavelle be hosting any?

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Hello I wanted to know if there will be any study tips you guys have that I could use for the final? Thank you very much.

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What is the molecular shape if the central atom is found in group 12?

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What is the molecular shape off carbon dioxide?

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Can you verify the electron and molecular geometry of H20?

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what is methanol's shape?

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what is the electron pair geometry of NCL2?

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Why are VSEPR molecular geometries and bond angles based on the lone pairs and bonded atoms?

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Can someone please give me an example of a Linear Molecular Shape and how did you find that example?

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What VSEPR shape has 2 bonding pairs and 0 lone pairs?

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What is the difference between Linear, Trigonal Planar, and bent?

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How do you find the bond present in Sulfur Dioxide?

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Why is oxygen more electronegative than nitrogen?

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How would we find the dipole moment of a ground state?

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Do we need to identify polar and non polar covalent bonds in lewis structures?

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what is the feature of water molecules that enables ionic substances to dissolve in water?

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What are the 3 major chemical bonds in chemistry and what do they do?

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What are the two factors that affect the melting points of ionic substances?

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In an Ionic solid what is each electron localized around?

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What are two ions in an ionic bonds held together by?

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Why is it that the number of covalent bonds anatomical can form is the same as the number unpaired electrons in its valence shells?

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Is there a specific rule to when to apply the octet rule? I know it can be applied to covalent bonds but my question here is if we can also apply them to ionic bonds.

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How does the fact that a non-metals. ionization energy level being too high affect its ability to form cations?

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Can Ionic compounds transfer Dots (e-) from nonmetal to metal or can it only transfer it from metal to nonmetal?

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I know one dot represents a single e- in orbital and two dots represents 2 paired e- in the same orbital but how many other dots are there?

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What is the reason behind why chemical bonds form? I know it's because bond atoms have lower energy that separate atoms but that doesn't make sense to me.

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Why is it that no two electrons in the same atom have the same four quantum numbers?

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Do we always have to use a wave function to describe an e- in an atom?

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When light photons are scattered from e- why does the momentum and position of e- get affected?

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Since all matter has wavelike properties why is it that it can only be noticed for moving objects with extremely small mass.

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Where do diffraction patterns result from? Please explain in depth.

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Why does a shorter lambda light eject e- from the metal surface while a longer lambda light doesn't?

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Why would the detector be the one to figure the speed of the electron? Why would it even want to find out the speed?

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Hello I was wondering if there are any online resources that some of you can recommend to me that will help me with chemistry? thank you!

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How would we able to identify if two variables have a direct or indirect relationship? I'm very confused on this.

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What would the relationship be between Lambda and Nu? How would one affect the other? thank you so much!

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If the wavelength of a proton increases what would happen to the photons energy?

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Hello everyone. I had a quick question on whether or not there is a difference between percent yield and theoretical yield. I have seen both be used in chemistry problems and I was confused as to whether they are two completely different things. Thank you very much for the help!

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When we balance chemical equations how do we know when we are supposed to convert it to grams? If I don't do that what will happen, do you think I would get the question entirely wrong or would I get partial points? thank you very much!!

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Hello in part A it's asking to calculate Vi of NA2CO3 but the thing is how do we know which one is Vi or which one is Mi? Thank you!

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I don't understand why we need to isolate the liters of the solution. What would that accomplish?

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For part B of the problem it is asking "What mass of aluminum chloride can be produced by these reactants" and my chemistry tutor said we must use the limiting reactant to find the theoretical yield but I don't know why we can't use the excess reactant to find the yield.

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