Page 3 - Chemistry Terminologies SK015 & DK014_Chemistry Unit, KMNS
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Chemistry Terminologies
Chemistry Unit KMNS
NUCLEON NUMBER NOMBOR NUKLEON Total number of protons and neutrons present in the nucleus of
an atom.
OXIDATION PENGOKSIDAAN The process in which a substance loses electrons and oxidation
number of certain element in the substance increases.
OXIDATION NUMBER NOMBOR The charge the atom would have in a molecule (or an ionic
PENGOKSIDAAN compound) if electrons were completely transferred.
OXIDISING AGENT AGEN A substance that is reduced but oxidises other species.
PENGOKSIDAAN
PERCENTAGE BY PERATUS The percentage of the mass of a component per mass of a
MASS MENGIKUT JISIM mixture or compound.
PERCENTAGE BY PERATUS The percentage of the volume of a component per volume of a
VOLUME MENGIKUT ISIPADU mixture.
PERCENTAGE YIELD PERATUS HASIL
% Yield = Actual yield 100
Theoretical yield
PHYSICAL SIFAT FIZIK The property of a substance that can be observed and measured
PROPERTIES without the substance changing to other substances.
POLYATOMIC ION ION POLIATOM A positive or negative ion containing more than one atom.
PRODUCT HASIL TINDAK Substance produced in a chemical reaction.
BALAS
PROTON NUMBER NOMBOR PROTON Number of protons in the nucleus of an atom.
REACTANT REAKTAN A substance taking part in a chemical reaction.
REDOX REACTION TINDAK BALAS A reaction that involves both reduction and oxidation reactions.
REDOKS
REDUCING AGENT AGEN PENURUNAN A substance that is oxidised but reduces other species.
REDUCTION PENURUNAN The process in which a substance gains electrons and oxidation
number of certain element in the substance decreases.
RELATIVE ATOMIC JISIM ATOM The average mass of one atom of the element compared to
1
12
MASS RELATIF of the mass of one C atom.
12
RELATIVE JISIM MOLEKUL The average mass of one molecule of the substance compared to
1
12
MOLECULAR MASS RELATIF of the mass of one C atom.
12
SOLUTE ZAT TERLARUT The substance present in the smaller amount in a solution.
SOLUTION LARUTAN A homogenous mixture of two or more substances.
SOLVENT PELARUT The substance present in the larger amount in a solution.
o
STANDARD SUHU DAN The conditions of T = 0 C (273K) and P = 1 atm
TEMPERATURE AND TEKANAN PIAWAI
PRESSURE (STP)
STOICHIOMETRY STOIKIOMETRI The study of the quantitative relationship between the reactants
and products of a chemical reaction.
THEORETICAL YIELD HASIL TEORI The amount of product that can be formed in a chemical reaction
based on the amount of limiting reactant.
Q : Why can you never trust atoms?
A : They make up EVERYTHING!
Didn’t get it?
See page 16 for explanation!
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