## Search found 15 matches

Sun Oct 20, 2019 11:55 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Spin
Replies: 5
Views: 99

### Electron Spin

Will we ever see a case in which some atoms have multiple electron spins? Or will they always be the same?
Sun Oct 20, 2019 11:53 pm
Forum: *Shrodinger Equation
Topic: Hamiltonian Equation
Replies: 1
Views: 49

### Hamiltonian Equation

Will we ever have to calculate the double derivative in the hamiltonian equation portion or will that be given to us?
Sun Oct 20, 2019 11:37 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration
Replies: 2
Views: 66

### Electron Configuration

How are electrons added to a configuration? I know that whether electrons are added to an atom can change the spin type but what are some scenarios in which electrons will be added?
Sun Oct 20, 2019 11:36 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Spin
Replies: 8
Views: 118

### Electron Spin

When trying to figure out the type of spin of the electron, how do we determine if they're parallel to each other or paired?
Sun Oct 20, 2019 10:05 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configurations
Replies: 2
Views: 52

### Electron Configurations

Do the levels for configuration ever change when bonding elements?
Sun Oct 13, 2019 11:59 pm
Forum: DeBroglie Equation
Topic: Objects equation is used for
Replies: 2
Views: 46

### Objects equation is used for

Since the DeBroglie equation is not used for light, is there any other object that the DeBroglie equation can't be used for?
Sun Oct 13, 2019 11:57 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: En equation
Replies: 1
Views: 49

### En equation

Since the equation is negative, does this mean the value you get will always be negative although you're calculating a positive n value?
Sun Oct 13, 2019 11:53 pm
Forum: Properties of Electrons
Topic: Electrons and Photons
Replies: 2
Views: 72

### Electrons and Photons

Since each photon must have enough energy to eject one electron, will there ever be a case in which electrons and photons will be un-proportional, if so, what happens then?
Sun Oct 13, 2019 11:44 pm
Forum: Properties of Electrons
Replies: 1
Views: 62

Does the intensity profile of black body radiation have an effect on wavelength
Sat Oct 05, 2019 6:45 pm
Forum: SI Units, Unit Conversions
Topic: Rounding
Replies: 6
Views: 118

### Re: Rounding

Sometimes you can also leave up to 4 or 5 digits after the decimal point to make it accurate enough to the actual number. Sometimes it also makes sense to round if the third number after the decimal point begins to repeat.
Sat Oct 05, 2019 6:37 pm
Forum: SI Units, Unit Conversions
Topic: Fundamentals E.9
Replies: 2
Views: 98

### Fundamentals E.9

For E9 B how do you find the number of formula units present, how do I convert my answer from part A to get part B?
Sat Oct 05, 2019 6:05 pm
Forum: Significant Figures
Topic: Sig Fig Addition and Subtraction
Replies: 5
Views: 154

### Re: Sig Fig Addition and Subtraction

When dividing/multiplying with sig-figs you have to round your answer to the shortest number of the digits for the numbers that you're multiplying/dividing
Sat Oct 05, 2019 6:02 pm
Forum: Significant Figures
Topic: Sig Fig Addition and Subtraction
Replies: 5
Views: 154

### Re: Sig Fig Addition and Subtraction

Rules for when you add/subtract sig figs is that you have to change your exponent to the smallest one and then when its time to divide/multiply (for the second half of the sig fig problem) instead of making the exponent the same, you can either subtract/add them depending on whether you're multiplyi...
Sat Oct 05, 2019 5:07 pm
Forum: Balancing Chemical Reactions
Topic: Combustion
Replies: 12
Views: 283

### Re: Combustion

Aprice_1J wrote:Can a combustion ever produce anything in addition to CO2 and H2o?

No, it cannot, combustion only produces water vapor which is made up of CO2 and H2O
For example, combustion of propane would be: C3H8 + 5O2 → 3CO2 + 4H2O, only producing water vapor
Sat Oct 05, 2019 4:59 pm
Forum: Empirical & Molecular Formulas
Topic: What decimal place to round to when taking masses from the Periodic Table?
Replies: 19
Views: 511

### Re: What decimal place to round to when taking masses from the Periodic Table?

It's more accurate to use the whole number when doing the actual problem but you should round your answer and used scientific notation if necessary.