Chem 1305 Study guides, Class notes & Summaries

The outermost electrons - Answer-valence electrons the shell the outermost electrons occupy - Answer-Valence shell Electron pairs in an electron dot structure that are not participating in a chemical bond - Answernon-bonding pair the electric force of attraction between two oppositely charged ions - Answer-ionic bond The fluid hold of electrons which holds the positively charged metal ions together - Answer-metallic bond An electrical attraction in which atoms are held together by their mu...

Periods - Answer-left to right-gradual change Groups - Answer-up and down-super similar Alkali Metals - Answer-Group 1: Very reactive with H2O Usually only form one bond Alkaline-Earth Metals - Answer-Group 2: More stable than group 1 usually form 2 bonds Transition Metals - Answer-Group 3B-2B: Can make any number of bonds Bond like Group 1 & Group 2 Halogens - Answer-Group 7: Can only make one bond Noble Gases - Answer-Group 8: Nonreactive and can't make bonds Atomic Status - Answer-S...

density formula - Answer-D=m/v Celcius to Kelvin - Answer-K=C+273 Ideal Gas Law Equation - Answer-PV=nRT Filtration - Answer-a difference in phase (solids and liquids) or (liquid and gases) Distillation - Answer-A process that separates the substances in a solution based on their boiling points compound rule #1 - Answer-combines a metal and nonmetal 1. Name the metal first 2. Name the nonmetal second 3. Add -ide suffix to the nonmetal compound rule #2 - Answer-combines 2 nonmetals 1. ...

Which of the following statements is incorrect? A). a body in motion possesses kinetic energy because of its motion B). an object possess potential energy because of its position or composition C). nuclear energy is an important kind of potential energy. D). chemical reactions and physical changes that release energy to their surroundings are endothermic E). the Law of Conservation of Matter and Energy states that the combined amount of matter and energy in the universe is fixed. - D ...

A positively charged subatomic particle found in the atomic nucleus. - Answer-Proton An electrically neutral subatomic particle found in the atomic nucleus. - Answer-Neutron Any subatomic particle found in an atomic nucleus. Another name for either proton or neutron. - Answer-Nucleon The attractive force between all nucleons, effective only at very short distances. - Answer-Strong Nuclear Force The number of protons in the atomic nucleus of each atom of a given element. - Answer-Atomic Nu...

mixture - Answer-composed of more than one substance that keeps its physical properties pure substances - Answer-contain one type of element or compound impure substances - Answer-contain two or more elements or compounds heterogeneous - Answer-looks different homogeneous - Answer-looks the same solution - Answer-all components are in the same phase suspension - Answer-although it is mixed very well, components are in different phases mass - Answer-what matter is measured by light is a f...

biochemistry - (Q1a) study of chemical substances derived from plants and animals experiment - (Q1a) the procedure of collecting data and recording observations under controlled conditions inorganic chemistry - (Q1a) study of chemical substances that do not contain the element carbon organic chemistry - (Q1a) study of chemical substances that contain the element carbon agriculture, medicine, petrochemical, pharmaceutical - (Q1a) chemistry play an important role in the following industr...

Bonding - the joining of two atoms in a stable arrangement Elements will ____,_____, or ______ electrons to reach the electron configuration of the noble gas closest to them in the periodic table - gain, lose, share Ionic Bonding - result from the transfer of electrons from one element to another Covalent Bonds - result from the sharing of electrons between two atoms How Do Ionic Bonds Form? - By a metal on the left side of the periodic table, and a nonmetal on the right side of the peri...

hypothesis - testable assumption theory - well-tested explanation that unifies a broad range of observations H20 - water NH3 - ammonia CH4 - methane H2O2 - hydrogen peroxide H3O+ - Hydronium NH4+ - Ammonium

what is a dipole? - Answer-polar molecule (uneven distribution of electronegativity) what is an induced dipole? - Answer-nonpolar molecule that TEMPORARILY becomes polar list the 4 molecular attractions in order from strongest to weakest. - Answer-ion-dipole, dipoledipole, dipole-induced dipole, induced dipole-induced dipole what a hydrogen bond? - Answer-bond when a hydrogen is attached to fluorine, nitrogen, or oxygen on both sides what is teflon? - Answer-designing a nonstick surface wh...