Particle model explains - Study guides, Class notes & Summaries

MSU CEM 141 FINAL EXAM WITH COMPLETE SOLUTIONS scientific question can be answered by doing experiments, making observation, taking measurements, etc. in a replicable way Lights acts as what? Particle and wave. scientific model drawing, graph, diagram, equation. represent many chemical entities. Wavelength The distance (m) of waves from peak to peak. Short: x-ray (red), long: infrared (blue) Short - higher energy Long - lower energy scientific theory A well tested concept t...

AQA GCSE Combined Science Trilogy- Physics with Q & A ρ = m ÷ v ANSWER density equation different states of matter, differences in density ANSWER particle model explains substances change state ANSWER mass is conserved when physical ANSWER a change of state is no new substance is produced ANSWER during a change of state reversed ANSWER a substance recovers its original properties if the change is electrons=protons ANSWER atoms have no overall charge because same number ...

Chem 141 exam 2 MSU Questions and Answers 100% Pass Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. The 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 a...

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...

Chemistry 1 Honors Final Exam Review 2024 with Correct Answers a broad generalization that explains a body of facts or phenomena - Answer- theory a testable statement - Answer- hypothesis a measure of the quantity of matter - Answer- mass a measure of the gravitational pull on matter - Answer- weight the closeness of measurements to the correct or accepted value of the quantity measured - Answer- accuracy the closeness of a set of measurements of the same quantity made in the same way - ...

Element - correct answer A pure substance that can't be broken down into simpler substances by chemical means; a substance composed of entirely one kind of atom. Compound - correct answer A pure substance that can be broken down by chemical means to produce two or more pure substances; a substance containing atoms of more than one element combined in fixed proportions Metal - correct answer Element that is a conductor of electricity, malleable, ductile and lustrous SATP - correct answe...

Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the nucleus are positively charged and so the alpha particle is repelled. Is this statement (Dalton's Theory) true or false and why? "All atoms of an element are identical and have the same mass and properties." - Answer-False. Atoms of the same element can have different numbers of neutrons. What is the evidence that electrons are subatomic particles? - Answer-The nature of the electron is i...

Quantum Mechanics Grade 12 Review Guaranteed Answers Who introduced the idea that particles could behave like waves? ️Louis de Broglie What theory did Erwin Shrodinger produce? ️the electron can only have certain quantized energies because of the requirement for only whole number of wavelengths for the electron wave (nodes) Who and what discovered the Heisenberg Uncertainty Principle? ️Werner Heisenberg discovered the principle that states it is impossible to simultaneously know ...

The statement "If I add cold milk to hot coffee the temperature will decrease," is a? - Claim, always include an explanation and reasoning to the claim. Scientific Model - Models are used to make testable predictions How much is a picometer? - 0.1 x 10^-12 meters Atomic Force Microscopy/ Scanning Tunneling Microscopy - Microscopes that now allows us to view atoms. Leaves are green in the summer because? - A plant's leaves are green in the summer because they contain chlorophyll. Chloro...

Formation of Spectral Lines Exam Review Solution Bohr's model of the atom - Answer->Explains energy levels and spectral lines in atoms Spectral lines - Answer->Specific energies or wavelengths of light absorbed or emitted by atoms Hydrogen atom - Answer->Atom with unique set of electron orbits and spectral lines White light - Answer->Consists of photons of all visible wavelengths Photon - Answer->Particle of light with specific energy and wavelength Wavelength - Answer->...