Ilmu Pengetahuan Alam SAT - Kimia

a large molecule composed of repeating structural units, or monomers, covalently bonded together in a chain-like structure

polimer

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, leading to variation in atomic mass

isotop

having a tendency to to undergo chemical reactions

reaktif

containing or relating to a dangerous form of energy produced by nuclear reactions

radioaktif

a chemical bond where atoms share electrons to form a stable molecule

Ikatan kovalen

a type of chemical bond between two atoms involving the sharing of two pairs of electrons, resulting in a stronger and more stable connection than a single bond

ikatan rangkap

defining substances or surfaces that have a strong attraction to water molecules, allowing them to easily absorb or interact with water

hidrofilik

characterized by substances or surfaces that repel water molecules, showing little or no affinity for water

hidrofobik

a chemical reaction that releases heat energy to its surroundings, typically resulting in a temperature increase

reaksi eksotermik

a chemical process that absorbs heat energy from its surroundings, often resulting in a temperature decrease

reaksi endotermik

the weighted average mass of an atom of an element, taking into account the masses of all its naturally occurring isotopes

massa atom

the total mass of all the atoms in a single molecule of a substance

massa molekul

the total number of protons and neutrons in the nucleus of an atom

nomor massa

a fundamental unit in chemistry that represents the amount of substance containing as many entities (atoms, molecules) as there are in 12 grams of carbon-12

tahi lalat

a container usually made of glass or plastic used in chemistry and laboratory

gelas kimia

a laboratory tool used to measure and transfer small volumes of liquid

pipet

a device that spins samples to separate components based on density

pemusing

a special paper treated with chemicals that change color in response to certain conditions, used to test for the presence of specific substances or measure pH levels

kertas indikator

a tabular arrangement of chemical elements organized based on their atomic number, electron configuration, and recurring chemical properties

tabel periodik

the process where calcium or calcium salts accumulate in a tissue, making it hard and rigid

proses mengeras menjadi kapur

a laboratory method used to determine the concentration of a substance in a solution by gradually adding a reagent of known concentration until a reaction is completed

titrasi

the process by which microorganisms convert carbohydrates into alcohol, acids, or gases

fermentasi

the measure of how much of a substance is present in a certain volume of solution

konsentrasi

a device used to analyze the chemical composition of small samples at a microscopic scale

probe mikro

a type of metallic material composed of three or more elements mixed together in varying proportions

paduan multikomponen

a group of atoms bonded together that behaves as a single unit within a molecule

a test that measures the presence, amount, or activity of a specific substance in a sample, often used in scientific and medical research

pengujian kadar logam

a state in a chemical reaction where the forward and reverse reactions occur at the same rate, resulting in no net change in the concentrations of reactants and products

keseimbangan

(chemistry) the process of separating a liquid or solution into its parts by passing electricity through it

elektrolisa

(of a solid) to become one with a liquid

larut (dalam air, dll.)

to make a solution or mixture weaker or less concentrated by adding more liquid

mencairkan

to disperse fine particles throughout a fluid so they remain evenly distributed without settling

menangguhkan

the process of dispersing or dissolving a substance into a solvent to form a homogeneous solution

pelarutan

the arrangement, composition, and characteristics of a material at a microscopic level

struktur mikro

a tiny, tube-shaped structure made of carbon atoms, with remarkable strength and electrical properties

tabung nano

heated to a liquid state due to high temperatures

cair

a phase is a distinct form of matter with uniform chemical and physical properties, separated from other forms by boundaries

tahap

to eliminate or neutralize harmful substances

detoksifikasi

denoting substances with a highly organized molecular structure, akin to crystals

kristal

a scientist who studies the structure and properties of crystals

ahli kristalografi

a scientist who studies the chemical composition and processes of celestial bodies to understand the formation and evolution of the universe

ahli kosmokimia

a laboratory technique used to separate and analyze mixtures of substances based on their differential affinities for a stationary phase and a mobile phase

kromatografi

a type of radioactive decay where a nucleus emits a beta particle (electron or positron) to transform a neutron into a proton or vice versa

peluruhan beta

not having an electrical charge

tidak bermuatan

a device that turns vapor into liquid by cooling it

kondensator

weak attractive forces between molecules or atoms, arising from temporary or induced dipoles

pasukan van der waal

a scientist or engineer who specializes in the study and production of metals and alloys, including their properties, processing methods, and applications

ahli metalurgi

the process by which molecules of a substance adhere to the surface of a solid or liquid, forming a thin film or layer

pengisapan

a renewable, alternative fuel made from organic materials such as vegetable oils, animal fats, or recycled cooking grease

biodiesel

a specific composition of a mixture of substances, typically metals or alloys, where the melting point is at its lowest possible temperature under atmospheric pressure

eutektik

a substance capable of absorbing and retaining a large amount of liquid relative to its own mass

penyerap super