TOEFL 어휘

substance that can donate a proton

산

energy barrier associated with a reaction pathway

활성화 에너지

sensitive laboratory instrument for measuring mass

분석 저울

having water as the solvent

수용액의; 물을 용매로 하는

smallest unit retaining identity of element

원자

number of protons in an atomic nucleus

원자 번호

substance that can accept a proton

염기; 양성자 받개

wide mouthed laboratory container

비커

temperature where vapor pressure matches external pressure

끓는점; 비등점

likely to break with little bending

잘 부서지는; 취성의

establish measurement relation using reference standards

교정하다

relationship between instrument readings and reference values

교정; 교정 과정

substance increasing reaction rate without net consumption

촉매

increase reaction rate by acting as catalyst

촉매 작용을 하다; 촉진하다

inorganic nonmetallic material often processed with heat

세라믹; 세라믹 재료

interaction holding atoms or ions together

화학 결합

symbolic representation of chemical composition

화학식

transformation of substances into different substances

화학 반응

layer applied to modify a surface

코팅; 피복층

material combining distinct constituent materials

복합 재료

substance with different elements chemically combined

화합물

amount of component relative to quantity of mixture

농도

damage material through chemical interaction with environment

부식되다; 부식시키다

chemical or electrochemical deterioration of material

부식

able to damage material or tissue by chemical action

부식성의

bond involving shared electron pairs

공유 결합

mass per unit volume of material

밀도

decrease concentration by adding solvent

희석하다

process of reducing solution concentration

희석; 희석 과정