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L4-Chemistry/Physics

CHEC 5th/6th Science

QuestionAnswer
Crystal solid with regular and repeating arrangement of atoms
Gemstones Valuable crystals
Polymer chains of the same molecule, bonded together
Plastics Polymers with special properties
Acid Molecule which donates hydrogen ions (protons)
Base Molecule which accepts hydrogen ions (protons)
Antacid Base with works against stomach acid
pH- Potential for Hydrogen scale measuring how acidic or basic a molecule is
Chemical Reaction 2+ chemicals react together to make a different molecule
Physical Reaction reaction which doesn’t change the molecule
Catalyst molecule which speeds up a reaction without getting used up
Reactant molecules which you add together in a reaction
Products molecules which are made in a chemical reaction
Endothermic Reaction Reaction which absorbs energy (heat)
Exothermic Reaction Reaction which releases energy (heat)
Ps 51:16-17 You will not be pleased with a burnt offering. The sacrifices of God are a broken spirit; a broken and contrite heart
Popular Physical Science sets

 

 



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