electronegativity The ability of an atom to attract an electrion when in a compound is ______ Low Metals typically do not attract electrons, this means their electronegativity is ___ high Non-Metals typically attract electrons, meaning their electronegativity is ____ Ionization Electronegativity is based on ________ energy. Flourine The most electronegative element is _______. Cesium The … Continue reading "Chemistry CH 6 review"
Accurate free from error especially as the result of care Atom the basic particle from which all elements are made chemical bond the force that holds atoms together chemical change a change in which one or more substances combine or break apart to form new substances chemical energy a form of potential energy … Continue reading "Chemistry Ch 2"
Extensive Property depends on the amount of matter present(ex: volume, mass) Intensive Property depends on the identity of the substance (ex: boiling point, density, conductivity) Physical Property can be observed without changing the identity of the substance (ex: melting point, density, magnetic) Chemical Property describes the ability of a substance to undergo changes in identity … Continue reading "Chemistry Ch 1&2: Matter and Measurements"
observations of cathode ray experiment ray bends in magnetic fieldray bends toward psoitive plate in electric fieldray is identical for any cathode conclusion of cathode ray experiment ray consists of charged particlesray consists of negative particlesthese particles are found in ALL matter cathode negative anode positive JJ Thompson Cathode ray experiment Who discovered electrons JJ … Continue reading "Chemistry ch 1"
atom submicroscopic particles that constitute the fundamental building blocks of ordinary matter molecule two or more atoms joined in a specific geometrical arrangement chemistry the science that seeks to understand the behavior of matter by studying the behavior of atoms and molecules hypothesis a tentative interpretation or explanation of the observations experiments highly controlled procedures … Continue reading "chemistry ch 1"
Silver Ag+ Cupric Copper(II) Cu+2 Ferrous Iron(II) Fe+2 Mercuric Mercury(II) Hg+2 Stannous Tin(II) Sn+2 Zinc Zn+2 Mercurous Mercury(I) Hg2+2 Ferric Iron(III) Fe+3 Boron B+3 Aluminum Al+3 Gallium Ga+3 Indium In+3 Plumbic Lead(IV) Pb+4 Stannic Tin(IV) Sn+4 Hydrogen H+ Lithium Li+ Sodium Na+ Potassium K+ Beryllium Be+2 Magnesium Mg+2 Calcium Ca+2 Ammonium NH4+
Ammonium NH4 +1 Cesium Cs +1 Copper I Cu +1 Hydrogen H +1 Hydronium H3O +1 Lithium Li +1 Potassium K +1 Silver Ag +1 Sodium Na +1 Barium Ba +2 Cadmium Cd +2 Calcium Ca +2 Chromium II Cr +2 Cobalt Co +2 Copper II Cu +2 Iron II Fe +2 Lead II Pb … Continue reading "Chemistry Cation Quiz"
Protons has a CHARGE of +1 and a MASS of 1 Electrons has a CHARGE of -1 and a MASS of almost zero Neutrons has a CHARGE of 0 and a MASS of 1 Number of protons + Number of neutrons = Relative atomic mass (RAM) Mass number- The number on the top of … Continue reading "Chemistry C4"
What are paints used for? To decorate or protect surfaces. What are pigments? Coloured substances that are used to give paint its colour. What are colloids? Solid particles are mixed with liquid particles, but are not dissolved. What are emulsion paints? Water based paints. What are oil paints? Use oil as the solvent (thins). What … Continue reading "Chemistry – C2"
Light is what two things? 1. A packet of energy (photon) 2. A wave of energy Definition of wavelength: distance between two crests/valleys The shorter the wavelength, the _______ the energy of light. Higher Electromagnetic Radiation * all visible and invisible wavelengths * electrical component and magnetic component Electromagnetic Spectrum * Entire range of electromagnetic radiation
No of moles = mass of substance __________________molar mass 1 mole of a gas takes up 24dm3 In Ionic equations, only the ___________ are involved, for example, C2H4Cl2 + F2 -> C2H4F2 + Cl2 goes to… reacting particlesF2 + 2Cl- -> 2f- + Cl2 Number of moles in a solution = concentration x volume in … Continue reading "Chemistry B Salters Chemistry Of Nat Rec British AS-Level"
Moles = Mass in grams_________________ Molar Mass Formula Unit is the ________ of the molecule, e.g. in Cu it is _____ and in 02 it is __ building block, Cu, 0 Avogadro’s constant is how many __________ are in one moles formula units To find the number of atoms in a given weight of a … Continue reading "Chemistry B Salters Chemistry for life British AS-Level"
Carbohydrates Following overnight fasting, hypoglycemia in adults is defined as a glucose of: <45 mg/dL Carbohydrates: The following results are from a 21 year old patient with a back injury that appears otherwise healthy whole blood glucose: 77 mg/dL serum glucose: 88 mg/dL CSF glucose: 56 mg/dL All values are consistant with a … Continue reading "Chemistry BOR"
AB2 2 bonds, 1 nonbonding, linear, 180 sp AB3 3 bonds, 0 nonbonding, trigonal planar, 120 sp2 AB2E1 2 bonds, 1 nonbonding, angular,
Quality Assurance (QA) A broad spectrum of plans, policies and procedures that provide an administrative system to manage a laboratory’s efforts to achieve quality goals. It includes actions necessary to provide confidence that laboratory services will be adequate to satisfy medical needs for patient care. Quality Control (QC) A component of the laboratory’s quality assurance … Continue reading "Chemistry Block 1"
NH^4Charge and Name? ammonium +1 CH^3COOCharge and Name? acetate -1 ClO^3Charge and Name? Chlorate -1 ClO^4Charge and Name? Perchlorate -1 NO^3Charge and Name? Nitrate -1 MnO^4Charge and Name? Permanganate – CO^3Charge and Name? Carbonate -2 CrO^4Charge and Name? Chromate -2 Cr^2O^7Charge and Name? Dichromate -2 SO^4Charge and Name? Sulfate -2 PO^4Charge and Name? Phosphate -3 … Continue reading "Chemistry Basic Need to Know"
The azimuthal quantum number is represented by what letter? B. l Which of the following bond types are intermolecular? NOT NOT A. Covalent Which of the following bond types are intramolecular? B. Ionic The transition metals generally have one or two valence electrons. True The nitrogen group has how many valence electrons? C. 5 Which … Continue reading "Chemistry B"
John Dalton Father of Chemistry first atomic theory lived in early 1800s JJ Thomson 1890s English scientist discovered electron (plum pudding model/chocolate chip cookie) using cathode ray tube Robert Millikan early 1900s determined charge of electron also calculated mass of electron Earnest Rutherford early 1900s u sing Gold Foil experiment discovered the nucleus first nuclear … Continue reading "Chemistry Atomic Unit"
Accuracy/Precision Being Right/consistent Democritus the atom antoine Lavoisier Law of conservation John Dalton Atomic theory JJ Thompson Robert Milikan Robert Milikan Charge of electron Ernest Rutherford Nuclear Model Neils Bohr electron cloud theory Alpha Particles 4/2 Beta Particles 0/-1 Energy equation with planck E=hv Heisenburg Uncertainty We cannot know where electrons are without alteration Aufbau … Continue reading "Chemistry AP Mid term"
acetate C2H3O2 -1 bicarbonate HCO3 -1 bisulfate HSO4 -1 bromide Br -1 chlorate ClO3 -1 chloride Cl -1 chlorite ClO2 -1 cyanide CN -1 fluoride F -1 hydroxide OH -1 hypochlorite ClO -1 iodide I -1 nitrate NO3 -1 nitrite NO2 -1 perchlorate ClO4 -1 permanganate MnO4 -1 carbonate CO3 -2 chromate CrO4 -2 dichromate … Continue reading "Chemistry Anion Quiz"
Chemistry The study if the composition and structure of materials and of the changes that the materials undergo. Experiment An observation of natural phenomena carried out in a controlled manner so that the results can be duplicated and rational conclusions obtained. Law A concise statement or mathematical equation about a fundamental relationship or regularity in … Continue reading "Chemistry and Measurement"
reactants the one or more substances in a chemical equation that react to form a new substance (products) products the one or more new substances produced from a chemical reaction Lewis base provides a pair of electrons to be shared Lewis acid accepts a pair of electrons to be shared oxidation when a species loses … Continue reading "Chemistry and Art Final"
The elements in Group 7A form anions with a 2- charge. False. What is an anion? An atom with a negative charge. What is the name and symbol for the anion formed when a fluorine atom gains one electron? Fluoride ion, F-. What is the name and symbol for the cation formed when a potassium … Continue reading "Chemistry A"
Applied Scientific Research research whose major focus is the discovery of useful products and processes, which can be used to benefit mankind Basic Scientific Research research whose major focus is the discovery of new fundamental information about humans and other living organisms and the universe in which they live Experiment a well-defined, controlled procedure for … Continue reading "Chemistry 90 Part 1"
What is matter? matter is anything that has volume and mass What are the most common units of volume? liters What is a meniscus? a curve on the surface of the liquid in a graduated cylinder What do you use a graduated cylinder for? to measure the volume of liquid When is water most dense? … Continue reading "Chemistry 6th grade (all year)"
Hydroxide OH with a -1 charge Acetate CH3CO2 with a -1 charge Carbonate CO3 with a -2 charge Phosphate PO4 with a -3 charge Ammonium NH4 with a +1 charge Nitrate NO3 with a -1 charge Sulfate SO4 with a -2 charge Cyanide CN with a -1 charge
Acid Any chemical that donates a hydrogen ion to another substance. Base Any chemical that accepts a hydrogen ion into its own structure. Hydronium Ion A water molecule with an extra proton. Hydroxide Ion A water molecule without the nucleus of one of the hydrogen atoms. pH -log[H3O+] Neutralization The reaction between an acid and … Continue reading "Chemistry 2 Test Physical Science"
kinetic energy energy of an object in motion kinetic theory all matter consists of tiny particles that are in constant motion atmospheric pressure collisions of atoms and molecules in the air with objects barometer device used to measure atmospheric pressure vaporization vaporization conversion of liquid to a gas or vapor evaporation vaporization that is at … Continue reading "Chemistry 2 Final"
Paramagnetic unpaired e- in shells effected (attracted) by magnetic fields Dimagnetic paired e- in shells uneffected by magnetic fields change in energy and electrons smaller energy change when unpaired e- are in shells Metallurgy mining of metals depends on reduction potential gold, silver, platinum are mined as is mining get metal into usable form flotation … Continue reading "Chemistry 2 exam 4"
Coordination Isomers 2 different complex ions exchanging ligands Ionization Isomers ligands and charge balances ion changes places IE:[Cr(SO4)(NH3)5]Cl[Cr Cl (NH3)5]SO4 Linkage Isomers Ligands that have multiple ways of binding with metal IE: ONO vs NO2 Geometric Isomers All have same bonds but the orientation is different in a 3D drawing. Optical Isomers Mirror images that … Continue reading "Chemistry 2C"