Viewing All Flashcards for Science 1-90
Earth, fire, water, air, and aether
Dating old objects or organisms
Wave and particle in behavior
Protons and atomic number
Shrinks the atomic radius
Increases across a periodand decreases down a group
Duplication, replication, transcription, and translation
By combining atomic orbitals or hybrid orbitals from each atom of the molecule, or other molecular orbitals from groups of atoms
A sigma is the end-to-end overlap of the bonding orbitals, or hybrid orbitals (a single bond), while a pi bond is the side-to-side overlap of unhybridized p-orbital (a pi bond along with a sigma bond form a double bond)(me: this isa freaking long answer)
The Resonance Model considers molecules to be an intermediate (called a resonance hybrid) between several Lewis structures that differ only in the placement of the valence electrons.
Oxidation states or oxidation number
Valence Shell Electron Pair Repulsion (VSEPR) model
Alpha particle, or nuetron
When bombarded with the neutrons their nuclei split releasing 2 or 3 more neutrons that then split in the nuclei of other U-235 atoms, releasing more energy and more neutrons. The process continues resulting in an enormous amount of energy (in the form of heat) from a small amount of U. This is called Chain reaction.eww long answer
A deutrium nucleus fusing with a tritium nucleus forms an alpha particle (Helium-4 nucleus) an a neutron (17.6 million electron volts(MeV) of released kinetic energy) through the loss of mass in the fusion process.
The total pressure of a gas mixture equals the sum of the partial pressures of gas components that make up the mixture.
To determine partial pressure of a gas component in a gas mixture.
Small and occupy negligible volume
Moving quickly, but not at the same speed
No force of attraction or repulsion exists
Collisions against a wall
3/2 kTwhere T = temperature in Kelvinand k = Boltzmann constant
Loose ordering with random distribution
High degree of short-range order
High temperature and pressure
Beaten into different shapes
Particles come out and go in at equal rates.
CO2 has an atmospheric pressure below the triple point therefore dry ice sublimes directly to vapor in ambient air. It is possible to observe liquid carbon dioxide - in a pressure vessel.