Search found 52 matches

by 705379941
Sat Dec 07, 2019 4:45 pm
Forum: Naming
Topic: cisplatin
Replies: 4
Views: 42

cisplatin

what is cisplatin?
by 705379941
Sat Dec 07, 2019 4:44 pm
Forum: Ionic & Covalent Bonds
Topic: hydrogen bonding
Replies: 1
Views: 51

hydrogen bonding

how many atoms in thymine could form a hydrogen bond?
by 705379941
Sat Dec 07, 2019 4:44 pm
Forum: Air Pollution & Acid Rain
Topic: acid rain
Replies: 4
Views: 97

acid rain

what should we know about acid rain?
by 705379941
Fri Dec 06, 2019 12:32 am
Forum: Amphoteric Compounds
Topic: As2O3
Replies: 3
Views: 62

As2O3

How is As2O3 an amphoteric oxide??
by 705379941
Wed Dec 04, 2019 11:56 am
Forum: Amphoteric Compounds
Topic: amphoteric oxides
Replies: 3
Views: 24

amphoteric oxides

what should we know about amphoteric oxides?
by 705379941
Sun Dec 01, 2019 8:08 pm
Forum: Identifying Acidic & Basic Salts
Topic: Final: Strong/ Weak Acids/Bases
Replies: 11
Views: 798

Re: Final: Strong/ Weak Acids/Bases

you should know them all. better safe than sorry
by 705379941
Sun Dec 01, 2019 8:07 pm
Forum: Bronsted Acids & Bases
Topic: How to tell
Replies: 4
Views: 46

Re: How to tell

a bronsted acic is a supplier of one particular lewis acid, a proton. a bronsted base accepts the proton
by 705379941
Sun Dec 01, 2019 8:04 pm
Forum: Conjugate Acids & Bases
Topic: the conjugate seesaw
Replies: 5
Views: 57

the conjugate seesaw

could someone just give me a quick briefing on the conjugate seesaw?
by 705379941
Sun Dec 01, 2019 8:03 pm
Forum: Lewis Acids & Bases
Topic: Arrhenius Acids & Bases
Replies: 2
Views: 40

Arrhenius Acids & Bases

Do we need to know what Arrhenius Acids & Bases are??
by 705379941
Sun Dec 01, 2019 8:02 pm
Forum: Acidity & Basicity Constants and The Conjugate Seesaw
Topic: pOH
Replies: 6
Views: 64

pOH

Are we expected to carry out calculations for pOH with log ??
by 705379941
Sun Nov 24, 2019 10:46 pm
Forum: Hybridization
Topic: d orbital
Replies: 4
Views: 42

Re: d orbital

some d orbitals get filled before the p orbitals. I recommend looking up an electron configuration chart for filling orbitals on google. It is really helpful.
by 705379941
Sun Nov 24, 2019 10:44 pm
Forum: Hybridization
Topic: octet expansion
Replies: 1
Views: 20

octet expansion

is octet expansion in hybridization period 3 & beyond on the periodic table?
by 705379941
Sun Nov 24, 2019 10:43 pm
Forum: Hybridization
Topic: hybridization number
Replies: 5
Views: 38

Re: hybridization number

yes, you must consider lone pairs
by 705379941
Sun Nov 24, 2019 10:42 pm
Forum: Hybridization
Topic: overlapping of oribtals
Replies: 1
Views: 21

overlapping of oribtals

could someone explain to me the overlapping of orbitals in hybridization?
by 705379941
Sun Nov 24, 2019 10:41 pm
Forum: Hybridization
Topic: sigma or pi?
Replies: 20
Views: 164

Re: sigma or pi?

single bonds are always signa, while double bonds & triple bonds start with one signa & then the rest are pi .
by 705379941
Sun Nov 17, 2019 3:43 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VSEPR on the test or final
Replies: 4
Views: 59

Re: VSEPR on the test or final

I believe both, so definitely know how to do both. Just remember that only atom positions are used to name the shape.
by 705379941
Sun Nov 17, 2019 3:42 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: replusion strength
Replies: 2
Views: 20

replusion strength

what does lone-pair>lone-bonding pair>bonding-bonding pair mean ??
by 705379941
Thu Nov 14, 2019 11:56 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angles
Replies: 9
Views: 72

bond angles

Why are angles "a little less than" certain angles?
by 705379941
Thu Nov 14, 2019 11:44 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: bond angle of OClO
Replies: 1
Views: 24

bond angle of OClO

Why is the bond angle for OCLO less than 120?
by 705379941
Thu Nov 14, 2019 11:41 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: ClO2+ shape
Replies: 1
Views: 20

ClO2+ shape

why is ClO2+ angular & trigonal planar? & what does angular mean?
by 705379941
Sun Nov 10, 2019 3:33 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: electron cloud distortion
Replies: 3
Views: 72

electron cloud distortion

could someone explain the electron cloud distortion concept to me better ?
by 705379941
Sun Nov 10, 2019 3:31 pm
Forum: Dipole Moments
Topic: hydrogen bonding
Replies: 2
Views: 24

hydrogen bonding

what is the significance of dimers?
by 705379941
Sun Nov 10, 2019 3:28 pm
Forum: Bond Lengths & Energies
Topic: test 2
Replies: 16
Views: 125

Re: test 2

i'm sure your TA will let you know what it will be on
by 705379941
Sun Nov 10, 2019 3:27 pm
Forum: Ionic & Covalent Bonds
Topic: polarizing power
Replies: 7
Views: 55

Re: polarizing power

yes, it's helpful if you think about the number of electrons & their attraction to the nucleus as well to help you remember
by 705379941
Sun Nov 10, 2019 3:21 pm
Forum: Electronegativity
Topic: electronegativity values
Replies: 6
Views: 36

electronegativity values

would we be given the electronegativity of elements when deciding which elements are more ionic or more covalent?
by 705379941
Fri Nov 01, 2019 9:32 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: making change in energy negative
Replies: 2
Views: 29

making change in energy negative

when do you make the change in energy negative?
by 705379941
Fri Nov 01, 2019 9:31 pm
Forum: Ionic & Covalent Bonds
Topic: Midterm
Replies: 28
Views: 257

Re: Midterm

It goes up to 2D
by 705379941
Fri Nov 01, 2019 9:29 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: manipulating equations
Replies: 3
Views: 45

manipulating equations

When you need to manipulate equations to find the unknown, do you have to show every step you did to get to the final equation?
by 705379941
Fri Nov 01, 2019 9:28 pm
Forum: Photoelectric Effect
Topic: important part of photoelectric effect
Replies: 5
Views: 73

important part of photoelectric effect

What is the must know for the photoelectric effect?
by 705379941
Fri Nov 01, 2019 9:27 pm
Forum: Properties of Light
Topic: when not to use the light equation?
Replies: 4
Views: 43

when not to use the light equation?

When are you not allowed to use the light equations when answering questions? TAs & UAs have made it clear not to use light equations for certain problems, but I never know why/when not to.
by 705379941
Thu Oct 24, 2019 8:35 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: noble gas notation
Replies: 2
Views: 45

noble gas notation

does anyone know a shortcut for noble gas notation?
by 705379941
Thu Oct 24, 2019 8:33 pm
Forum: Trends in The Periodic Table
Topic: Ionic Radii
Replies: 10
Views: 118

Re: Ionic Radii

anions gain an electron, so that can add an n, which makes the radius larger. Cations lose an electron, so that can take away an n, making the radius smaller
by 705379941
Thu Oct 24, 2019 8:31 pm
Forum: Trends in The Periodic Table
Topic: blocks
Replies: 13
Views: 108

Re: blocks

you should! It helps a lot with noble gas orientation & electron configuration in general
by 705379941
Thu Oct 24, 2019 8:30 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration Exceptions
Replies: 3
Views: 34

Re: Electron Configuration Exceptions

we only need to know those two for Chem 14A
by 705379941
Thu Oct 24, 2019 8:29 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: order of electron configuration
Replies: 4
Views: 45

order of electron configuration

What should the order of electron configuration be? It should be 1s,2s,3s,3p,4s,3d I thought? Some people are saying 1s,2s,3s,3p,3d,4s to keep the n's together, though
by 705379941
Mon Oct 21, 2019 2:46 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: orbitals
Replies: 5
Views: 54

orbitals

when would we need to draw the s,p,d, or f orbitals? & why do we need to know the planes?
by 705379941
Thu Oct 17, 2019 8:45 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: how to prepare
Replies: 22
Views: 187

how to prepare

I'm really stressed out right now. The textbook is a lot of information with lots of formulas to know. Any advice for understanding the material better & to help me feel more prepared & confident?
by 705379941
Thu Oct 17, 2019 8:43 pm
Forum: Properties of Light
Topic: 1A.5
Replies: 6
Views: 62

Re: 1A.5

it's something you will just have to memorize
by 705379941
Thu Oct 17, 2019 8:41 pm
Forum: Properties of Electrons
Topic: parallel spins
Replies: 3
Views: 55

parallel spins

Why do electrons with parallel spins avoid each other?
by 705379941
Thu Oct 17, 2019 8:39 pm
Forum: Properties of Electrons
Topic: effective nuclear charge
Replies: 5
Views: 48

effective nuclear charge

what is the importance of the effective nuclear charge?
by 705379941
Thu Oct 17, 2019 8:38 pm
Forum: *Shrodinger Equation
Topic: derivation
Replies: 5
Views: 49

derivation

is it important to know how to derive all of these different equations?
by 705379941
Sat Oct 12, 2019 11:59 pm
Forum: Properties of Light
Topic: Speed of Light
Replies: 41
Views: 1173

Re: Speed of Light

speed of light is a constant!
by 705379941
Sat Oct 12, 2019 11:57 pm
Forum: Properties of Light
Topic: de broglies equation
Replies: 6
Views: 85

de broglies equation

when do we use de broglies equation?
by 705379941
Sat Oct 12, 2019 11:53 pm
Forum: Photoelectric Effect
Topic: threshold energy
Replies: 6
Views: 51

threshold energy

why must energy of light be greater than some threshold energy?
by 705379941
Sat Oct 12, 2019 11:52 pm
Forum: Properties of Light
Topic: wavelike properties
Replies: 6
Views: 48

wavelike properties

why do electrons need to have wavelike properties?
by 705379941
Sat Oct 12, 2019 11:48 pm
Forum: Properties of Light
Topic: e=hv
Replies: 7
Views: 103

e=hv

why is e=hv only applied to light ?
by 705379941
Thu Oct 03, 2019 11:41 pm
Forum: SI Units, Unit Conversions
Topic: scientific notation
Replies: 7
Views: 66

scientific notation

When should you leave the answer in scientific notation and when should you not?
by 705379941
Thu Oct 03, 2019 11:40 pm
Forum: General Science Questions
Topic: Chem 17 vs. Chem 14A
Replies: 1
Views: 28

Chem 17 vs. Chem 14A

Hi, I took honors chem my sophomore year, but did not take AP Chem. Do you recommend I take Chem 17 instead of Chem 14A?
by 705379941
Thu Oct 03, 2019 11:35 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 169
Views: 124179

Re: Rusty on High School Chem [ENDORSED]

I suggest that you go to the Step Up workshops in Covel!
by 705379941
Thu Oct 03, 2019 11:32 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 134
Views: 92549

Re: Reading the textbook [ENDORSED]

the textbook can scare me, but it's best to break it down. Don't read too much in one sitting and take notes on things that scare you. If you really don't understand a concept, try looking at videos on Youtube!
by 705379941
Thu Oct 03, 2019 11:31 pm
Forum: SI Units, Unit Conversions
Topic: unit conersations
Replies: 7
Views: 118

Re: unit conersations

i believe only if the problem asks for meters
by 705379941
Thu Oct 03, 2019 11:29 pm
Forum: Significant Figures
Topic: How would sig figs be used in a problem?
Replies: 7
Views: 55

Re: How would sig figs be used in a problem?

You just need to make sure the answer you give to the problem has the correct amount of sig figs. So just follow the sig fig rules. Your answer should have the same amount of sig figs as the number in the question with the least amount of sig figs.

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