Φυσικές Επιστήμες SAT - Χημικές Ουσίες και Ιδιότητες

(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself

καταλύτης

a solution containing a weak acid and its conjugate base, or a weak base and its conjugate acid, which maintains a stable pH when small amounts of acid or base are added

ρυθμιστής

a substance that takes part in and undergoes a chemical reaction, leading to the formation of new products

αντιδραστήριο

a substance or compound used in a chemical reaction to detect, examine, or produce other substances

αντιδραστήριο

any of the elements in Group 18 of the periodic table, including helium, neon, argon, krypton, xenon, and radon, characterized by their inert nature and stable electron configurations

ευγενες αεριο

a group of non-reactive gases that typically exhibit low chemical reactivity due to their stable electron configurations

αδρανές αέριο

a type of chemical element found in Group 17 of the periodic table, known for being highly reactive and commonly used in disinfectants and lights

αλαγόνο

a durable plastic material used for packaging, bags, and various applications

πολυθένιο

a lightweight and versatile synthetic polymer used in packaging, insulation, and disposable products

πολυστυρένιο

referring to the essential chemical element phosphorus, which is vital in biological processes and various industrial applications

υποφωσφορικός

a colorless, volatile liquid solvent commonly used for removing nail polish and other substances from surfaces

ακετόνη

a naturally occurring polysaccharide derived from brown seaweed, commonly used in various industries for its thickening, gelling, and stabilizing properties

άλας αλγινικού οξέως

a compound containing silicon and oxygen atoms, often forming minerals or glasses, with diverse applications in industry and nature

πυριτικό άλας

a single layer of carbon atoms arranged in a two-dimensional honeycomb lattice, known for its exceptional strength, electrical conductivity, and flexibility

γραφένιο

a naturally occurring organic compound found in many fruits that contributes to their sour taste

μηλικό οξύ

a weak organic acid found naturally in citrus fruits like lemons, oranges, and limes, commonly used as a food additive for flavoring and preserving

κιτρικό οξύ

a chemical compound that contains phosphorus and oxygen atoms, commonly found in salts or esters of phosphoric acid, important for biological processes and industrial applications

φωσφορικό άλας

a type of elementary particle that is one of the six types, or flavors, of quarks that has an electric charge of +2/3 and participates in strong and electromagnetic interactions

γοητεία κουάρκ

something that has specific chemicals or causes a chemical reaction that destroys harmful microorganisms such as bacteria

απολυμαντικό

a chemical compound (HCO3-) important for regulating pH balance, found in baking soda and crucial for bodily functions

διττανθρακικό

a substance that is dissolved in a solvent, resulting in a solution

διαλυτό

having absorbed as much of a substance as possible at a given temperature, reaching its maximum concentration

κορεσμένα

(of a solution) containing volatile or highly flammable substances, such as diethyl ether

αιθέριος

describing chemical compounds that do not contain carbon-hydrogen bonds and are typically derived from minerals or non-living matter

ανόργανος

a liquid that is capable of dissolving another substance

διαλύτης (χημεία)

refering to substances that have a pH greater than 7, indicating a basic or non-acidic nature

αλκαλική

containing or relating to salt

αλατούχος