Reactants break - Study guides, Class notes & Summaries

IB Chemistry Topic 5 Latest Update Graded A+ Enthalpy The amount of heat released (exothermic) or absorbed (endothermic) during a chemical reaction (the energy needed for the reaction to occur) This can be lowered with the presence of a catalyst. Change in Enthalpy Hproducts -Hreactants Specific heat equation c= q in Joules (or Change in H)/mass(g)(change in temp) Specific heat of water 4.18 J/gdegreesC **NOTE: Usually in kJ Endothermic v. Exothermic Endothermic: Absorbing e...

Biology 1406 Lecture test 2 (Ch. 4-6) Rated A+ Metabolism Sum of all chemical activity Catabolic pathway break down molecules anabolic pathway build more complex molecules bioenergetics study of how organisms manage their energy resources Energy The capacity to do work or cause change. Potential Energy Energy by position or state. Examples - Water held back by a dam, chemical energy and electrical energy in a battery. Kinetic Energy Energy in motion or at work. EX: movi...

Relative atomic mass : The average mass of an atom of an element, relative to 1/12th of the mass of an atom of Carbon-12 Relative molecular mass : Average mass of a molecule compared to 1/12th of the mass of a carbon-12 atom The Avogradro constant : the number of particles in a mole ideal gas equation : pV = nRT empirical formula : the simplest whole number ratio of atoms of each element in a compound 2 percentage atom economy : (Mass of desired product/total mass of reactants) x 1...

Metabolism Sum of all chemical activity Catabolic pathway break down molecules anabolic pathway build more complex molecules bioenergetics study of how organisms manage their energy resources Energy The capacity to do work or cause change. Potential Energy Energy by position or state. Examples - Water held back by a dam, chemical energy and electrical energy in a battery. Kinetic Energy Energy in motion or at work. EX: moving water, energy released by breaking a chemical bond or electri...

Vapor Pressure is a form of Dynamic Equilibrium Molecules are constantly moving between phases, but the rate at which the molecules move from the liquid ↔ gas phase is constant Chemical Equilibrium a state in which the rate of a forward reaction and the rate of the reverse reaction are the same as the reaction uses its reactants the forward reaction starts to slow down How is chemical equilibrium reached? reactants and products are still forming when it is reached, just at th...

Life 102 Exam 1 CSU Arthun Questions and Answers Already Passed At what organizational level is life's uniformity most evident? Most evident in cells At what organizational level is life diversity most evident? Most evident in organisms How do Atoms fill their Valence shell? Donate or accept electrons from another atom or two atoms can share an electron pair creating a covalent bond. What happens when an atom gains or loses an electron? It becomes ionic 96% of living mater is...

elative atomic mass (Ar) : Average mass of an atom compared with one twelth of the mass of an atom of carbon 12 Electronegativity : Power of an atom to attract the pair of electrons in a covalent bond Standard enthalpy of combustion : Enthalpy change when 1 mole of a substance burns completely in oxygen under standard conditions with all reactants and products being in their standard state Standard enthalpy of formation : Enthalpy change when 1 mole of a compound is formed from it's ...

Chem 1020 Exam #4 Questions With 100% Correct Answers 2023 Chemical Reaction Process in which at least one new substance is produced as a result of chemical change Combination Chemical reaction in which a single product is produced from two (or more) reactants Decomposition Chemical reaction in which a single reactant is converted into two (or more) simpler substances (elements or compounds) Displacement or Single Replacement Chemical reaction in which an atom or molecu...

Atom the basic building block of matter that make up everyday objects Nucleus (atom) the center of an atom that contains the protons and neutrons Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:02 / 0:15 Full screen Electron Cloud the area around the nucleus of an atom where electrons are found Protons positive charged subatomic particles found in the nucleus Neutrons neutral charged subatomic particles fou...

"AQA A-level BIOLOGY 7402/1 Paper 1 Question Paper Mark scheme" Latest update Water removed from the reactants joining two molecules together forming a chemical bond Condensation The addition of water to the reactants to break a chemical bond between 2 molecules Hydrolysis 1. Add Benedict's reagent. 2. Heat the solution in a water bath for 5 minutes at 95 degrees Celsius. 3. Change from blue to brick red as CuO formed Test for Reducing Sugars (3) Smaller units from which larger molecu...