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Module C (Quizlet) 1

Technical Escort - Chemical Operations

QuestionAnswer
Chemistry definition The science of matter, energy and reactions
Matter definition Anything that has mass and occupies space
Name the three states of matter Solid, liquid and gas
Boiling point definition When a liquid transitions to a gas (temperature at which a substance's vapor pressure equals and then exceeds the atmospheric pressure)
Freezing point definition When a liquid transitions into a solid
Sublimation definition When a solid transitions into a gas
Vapor pressure definition Force exerted by the vapor molecules in a closed container at equilibrium
Vapor density definition The molecular weight of gas or vapor compared to air
Ionization potential definition Amount of energy required to excite a valence electron
Specific gravity definition The weight and volume of a solid or liquid compared to the weight of an equal volume of water
What is level of pH is considered acidic? Less than 2
What is level of pH is considered caustic? Greater than 12.5
Solubility definition A substance's ability to be dissolved in water
Element definition Simplest form of a substance that retains its properties
Compounds definition Two or more elements bonding together chemically
Homogeneous definition Relatively uniform in composition
Heterogeneous definition Mixture composition varies from position to position within the mixture
Salts definition The combination of a metal and non-metal element
Ionic bonding definition Atoms gain or lose electrons during reaction
Covalent bonding definition Atoms share electrons during reaction
Created by: JeromeTalley
 

 



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