托福詞彙

substance that can donate a proton

酸

energy barrier associated with a reaction pathway

活化能

metallic material combining multiple elements

合金

sensitive laboratory instrument for measuring mass

分析天平

having water as the solvent

水溶液的；以水為溶劑的

smallest unit retaining identity of element

原子

number of protons in an atomic nucleus

原子序

substance that can accept a proton

鹼；質子接受者

wide mouthed laboratory container

燒杯

temperature where vapor pressure matches external pressure

沸點

likely to break with little bending

脆的；容易碎裂的

establish measurement relation using reference standards

校正；校準

relationship between instrument readings and reference values

校正；校準過程

substance increasing reaction rate without net consumption

催化劑；觸媒

increase reaction rate by acting as catalyst

催化

inorganic nonmetallic material often processed with heat

陶瓷材料；陶瓷

interaction holding atoms or ions together

化學鍵

symbolic representation of chemical composition

化學式

transformation of substances into different substances

化學反應

layer applied to modify a surface

塗層；覆蓋層

material combining distinct constituent materials

複合材料

substance with different elements chemically combined

化合物

amount of component relative to quantity of mixture

濃度

chemical or electrochemical deterioration of material

腐蝕

able to damage material or tissue by chemical action

具腐蝕性的

bond involving shared electron pairs

共價鍵

mass per unit volume of material

密度

decrease concentration by adding solvent

稀釋

process of reducing solution concentration

稀釋；稀釋過程