Search found 7 matches

by Christina Inchuachan 1C
Sun Apr 15, 2018 9:23 pm
Forum: Properties of Light
Topic: Light is a wave and a particle?
Replies: 5
Views: 186

Re: Light is a wave and a particle?

Light is both a wave and a particle. Light has wave-like characteristics such as diffraction, reflection, and refraction. When UV light hits a metal surface, it causes an emission of electrons, called the photoelectric effect. The photoelectric effect supports that light is also a stream of particles.
by Christina Inchuachan 1C
Sun Apr 15, 2018 9:11 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: What do the coefficients/subscripts represent [ENDORSED]
Replies: 7
Views: 382

Re: What do the coefficients/subscripts represent [ENDORSED]

Coefficients represent the number of molecules in the equation while the subscripts represent the number of atoms of the element.
by Christina Inchuachan 1C
Sun Apr 15, 2018 9:00 pm
Forum: Empirical & Molecular Formulas
Topic: Similar Formulas [ENDORSED]
Replies: 3
Views: 220

Re: Similar Formulas [ENDORSED]

I believe so!
by Christina Inchuachan 1C
Sun Apr 15, 2018 8:53 pm
Forum: Empirical & Molecular Formulas
Topic: Finding Empirical and Molecular Formula [ENDORSED]
Replies: 6
Views: 395

Finding Empirical and Molecular Formula [ENDORSED]

How do you find the empirical and molecular formula if the molecular structure is given? There was a whole section on it in the first chem exam.
by Christina Inchuachan 1C
Mon Apr 09, 2018 1:44 am
Forum: SI Units, Unit Conversions
Topic: Moles mols mol? [ENDORSED]
Replies: 21
Views: 1315

Re: Moles mols mol? [ENDORSED]

I think mol is an abbreviation of mole and mols is an abbreviation of moles. I don't think it matters that much though.
by Christina Inchuachan 1C
Mon Apr 09, 2018 1:42 am
Forum: Empirical & Molecular Formulas
Topic: Formula steps
Replies: 4
Views: 210

Re: Formula steps

I think the steps to finding the empirical formula and molecular formula are the same. You would need the empirical formula to find the molecular formula. You would have to divide the gram molecular mass by the empirical formula mass. Then, multiply each of the subscripts within the empirical formul...
by Christina Inchuachan 1C
Mon Apr 09, 2018 1:31 am
Forum: Significant Figures
Topic: Basic Sig Figs
Replies: 13
Views: 1012

Re: Basic Sig Figs

I think he said we don't have to worry as much about significant figures right now, but you should still understand it. Basically, when you add something you save the large number of decimal points. When you multiply something, you save the lowest number of figures.

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