Schrodinger Samenvattingen, Notities en Examens

CLEP Chemistry Latest Update Graded A John Dalton Proposed that matter is composed of atoms; these atoms have different identities called elements, which combine to form compounds; measured masses of reactants and products. J.J. Thompson Observed deflection of particles in a cathode ray tube; proposed that atoms are composed of positive and negative charges; developed the plum pudding model of the atom Robert Millikan Calculated the charge-to-mass ratio of electrons using oil drops falling in ...

IB Chemistry Unit 2 SL Latest Version Rated A+ Emission spectrum An emission spectrum is produced when an atom moves from a higher to a lower level. The line emission spectrum of hydrogen provides evidence for __________________ which converge at _____________ The line emission spectrum of hydrogen provides evidence for the existence of electrons in discrete energy levels which converge at higher energies. Continuous spectrum All the colours / wavelengths present merge smoothly in...

Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) De Broglie (1924) Electrons act like waves around the atom. Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. Earnest Rutherford (foil) (1910) Fired beam of alpha particles ...

Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - AnswerThe more times the wave is passing through a point in space = a higher frequency, the higher frequency creates a smaller wavelength, which is why the smallest wave is a gamma wave, it has the highest frequency and the shortest distance between waves, the velocity can be measured in m/s and is composed of frequency and wavelength Calculate any one (frequency, wavelength, or velocity) given the...

Which of the following may be described as a saturated hydrocarbon? a) octane b) pentene c) hexyne d) trans-butene - Answer- a Which of the following is the reason for the non-polar nature of alkanes? a) similar electronegativity of the carbon and hydrogen atoms b) saturated carbon bonds c) carbon atoms have a stronger pull on electrons than hydrogen atoms d) hydrogen repel polar functional groups - Answer- a The Montreal Protocol is an international treaty that successfully reduce...

Chemistry final review questions and answers well illustrated. intensive properties - correct ds on what type of matter (ex: denisty, composition, atomic structure) extensive properties - correct ds on how much matter you have (amount of matter), ex: mass, volume, shape homogenous mixtures - correct phase (part that you can see), individual parts not visible (ex: solutions) heterogenous mixture - correct re does not appear the same throughout (ex: colloids, suspeniso...

University of Washington - Department of Chemistry Chemistry 453 Homework Assignment 10 Problem 1 The longest wavelength absorption band of chlorophyll a occurs at 680 nm. a. Calculate the energy of a photon of that wavelength in J, eV and kJ/Einstein a) x J photon x m hc x Jxsx x m s E 2.92 10 / 6.8 10 6.62 10 3 10 / 19 7 34 8 − − − Δ = = = λ 2.92x10 J / photonx1eV /1.602x10 J 1.82eV / photon 19 19 = = = − One Einstein corresponds to one mole of photons, so the ener...

Law of Conservation of Mass Matter is neither created nor destroyed it is only rearranged Law of Definite Proportions Atoms must combine in whole number ratios 00:30 01:39 Law of Multiple Proportions Atoms can combine in different whole number ratios Law of Electrical Charges 2 types of charges: opposites attract and like charges repel Heisenberg Uncertainty Principle The more precisely you know the location of the electron the less precisely you know t...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) De Broglie (1924) Electrons act like waves around the atom. Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. Earnest Rutherford (foil) (1910) Fired beam of alpha particles at thin ...