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Elem. Chem/Phys 4

Elem Chem/Phys 4

QuestionAnswer
Crystal A solid that has regular repeating arrangement of atoms.
Elements that form crystals. Salt, Sugar, iron, Sulfide, and water.
Compound Made up of two or more different elements combined.
Gemstones Crystals people have considered more valuable than others.
Acid Sour,conducts electricity, ruins metal, and donates hydrogen ions.
Base The chemical opposite of an acid.
Antacid A base that works against the acid upsetting your stomach. Anti=against.
PH Potential for Hydrogen
Chemical Reaction When 2 or more chemical substances interact with each other and change into different chemical substances
Physical reaction Does not change the molecules - only changes the way it looks.
Reactants To make a chemical reaction - substances you start with (ie: borax, glue, water, vinegar, steel wool, coke, mentos, litmus paper...)
Endothermic Reaction Endo = within. Heat energy goes into the product.
Exothermic Reaction Exo = Greek word which means outside. So heat energy gets outside the molecules.
Created by: Kids3
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