Chm 100 - Study guides, Class notes & Summaries

Acetate - C2H3O2- Ammonium - NH4+ Carbonate - CO32- Define a cation - An atom that loses an electron becomes a positively charged ion Define a covalent bond - A chemical bond formed by the sharing of a pair of electrons between atoms. Define a covalent compound - Composed of two or more nonmetal atoms bonded by sharing valence electrons. Define a group on the periodic table - The elements in any one column of the periodic table Define a metal, give its properties, and location on the pe...

CHM 115 Exam 2 Purdue with 100% correct answers

Anions are - negative (ie, more electrons) Cations are - positive (ie, less electrions) Formula for density - d = m/v Formula Mass is measured by - adding up all the elements g/mol Formulas to conv. Celsius to Fahrenheit - 1. F = (C x 9/5) +32 2. C = (F +32) x 5/9 Formulas to conv. Kelvin to Celsius - C = K - 273.15 How do you find percent composition? - (# of element)(atomic mass of element) / (mass of entire compound) and then multiply by 100 How to find neutrons in an isotope? - numb...

CHM 115 Exam 2 Purdue Questions with 100% Correct Answers | Verified | Latest Update 2024 | 100% Pass| Rated A+

CHM 115 Exam 2 Purdue Questions with 100% Correct Answers | Verified | Latest Update 2024 | 100% Pass| Rated A+ Degeneracy - Orbitals with a given n having identical energy Metals - Lose electrons from valence shall form cations internal energy - Potential and kinetic energy of all particles that make up the system nonmetals - Add electrons to valence shells, form negative ions (anions) Work - Energy transferred when an object moves by a force enthalpy - total heat content of a system Fir...

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ASU CHM 101 Chapter 4 Chemical Reactions Questions with 100% Actual correct answers | verified | latest update | Graded A+ | Already Passed | Complete Solution

Exothermic Reaction - correct answer When heat is produced in the process of a chemical reaction Endothermic Reaction - correct answer When heat is absorbed from the reacting substances Endo and Exo thermic reactions - correct answer require an Activation Energy to begin 4 main methods for stopping a combustion reaction (putting out a fire) - correct answer Smothering Starvation Cooling Breaking the Chain Reaction the key ingredient in a combustion reaction is - correct answer oxy...

BCHM 102 Exam Questions and Answers 100% Pass What are the 4 classes of macromolecules? - Correct Answer️️ -carbohydrates, lipids, proteins, nucleic acids Proteins are considered... - Correct Answer️️ -the workhorse of the cell Describe the "central dogma" of molecular biology. - Correct Answer️️ -The central dogma of molecular biology is that information is transferred from DNA to RNA to protein. Information is stored in the genes of the DNA, which is replicated and transc...

Purdue Chm 115 Exam 2 Questions with 100% Correct Answers | Verified | Latest Update 2024 | 100% Pass| Rated A+