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IELTS Học Thuật (Band 5 Trở Xuống) - Hoá học
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Đố vui
(science) the smallest part of a chemical element that is found in the nature
nguyên tử
the smallest structure of a substance consisting of a group of atoms
hóa phân tử
a substance that is composed of only one type of atom, typically characterized by specific physical and chemical properties
nguyên tố hóa học
a particle with a net electric charge due to loss or gain of one or more electrons
ion
(chemistry) a process in which several chemicals combine and form different substances
sức phản động
(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction
hỗn dược
a water-soluble chemical substance that contains Hydrogen and has a sour taste or corrosive feature with a PH less than 7
chất có tính axit
(chemistry) a substance that can accept protons, donate electrons, or release hydroxide ions in aqueous solution
diêm cơ
a substance such as water that flows freely, unlike a gas or a solid
chất lõng
the state of a substance that is firm and has a certain shape, not like gas or liquid
to make something change from a particular state, condition or position to another
đổi
a quantitive mesasure used for determining how acidic or alkanic something is on a scale of 0 to 14
ph
