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Exam Study Guide

QuestionAnswer
How Do You Calculate Density ? Density= Mass/Volume
What Is The Definition Of Solid? The state of matter that has a defined shape and volume with molecules that are closely packed and vibrate in place
What is The Definition Of Liquid? A state of matter with a defined volume but no defined shap
Particles Of The Speed Of Solids? Particles in a Solid move Slower Than The particles in Gas And Liquid
Particles Of The Speed Of Gas? Particles in a Gas move faster than the particles in both Solid and Liquid
Particles Of The Speed Of Liquid? Particles in Liquid Mover Faster than Solids but Slower than Gas
What Is A Covalent Bond? A chemical link between two atoms that share electrons
How Many Valence Electrons Are Needed For A Atom To Be Stable? 8
___Ca+__O2 >__CaO ___Ca+__O2 >_2_CaO
What Is The Definition Of Catalyst? Substance that increases the rate of a chemical reaction by lowering the amount of energy needed for the reaction to occur, but is not changed by the reaction
What Is The Definition Of Law Of Conservation Of Mass? A fundamental principle of science stating that mass cannot be created or destroyed in a closed system through ordinary chemical or physical means
What Are The 6 Signs Of A Chemical Reaction? Bubbles of gas-Precipitate Forms-Color Changes-Temperature Changes-Light is Emitted-Change In Smell or Taste
What is a Exothermic Reaction? Chemical Reaction That Gives Off Heat
Created by: treshawn.allen