Chemical Reactions and Conservation of Mass
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Tìm bảng từ bằng cách sử dụng phụ lục này
Đặc biệt | A | Ă | Â | B | C | D | Đ | E | Ê | F | G | H | I | J | K | L | M | N | O | Ô | Ơ | P | Q | R | S | T | U | Ư | V | W | X | Y | Z | TẤT CẢ
A
AtomThe smallest particle of an element that retains its chemical properties. | |
B
Balanced chemical equationA chemical equation with the same number of each type of atom on both sides. | |
C
Chemical changeA change that produces one or more new substances. | |
Chemical equationA symbolic representation of a chemical reaction using chemical symbols and formulae. | |
Chemical formulaA combination of symbols and numbers showing the types and numbers of atoms in a substance. | |
Chemical reactionA process in which atoms are rearranged to form new substances. | |
Chemical symbolA one- or two-letter abbreviation representing an element. | |
Closed systemA system in which no matter can enter or leave. | |
CoefficientA number placed before a chemical formula indicating the number of particles involved in a reaction. | |
Conservation of massThe principle that mass is neither created nor destroyed during ordinary chemical reactions. | |