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Ch.3 - Chemical Reactions and Reaction Stoichiometry
Brown - Chemistry: The Central Science 14th Edition
Brown14th EditionChemistry: The Central ScienceISBN: 9780134414232당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Brown 14th EditionCh.3 - Chemical Reactions and Reaction Stoichiometry문제 14c
3장, 문제 14c

Balance the following equations: (c) MnO2(s) + HCl(aq) → MnCl2(s) + H2O(l) + Cl2(g)

검증된 단계별 안내
1
Identify the elements involved in the reaction: Mn, O, H, Cl.
Write down the number of atoms of each element on both sides of the equation.
Balance the elements one at a time, starting with the element that appears in the fewest compounds. In this case, start with Mn.
Next, balance the oxygen atoms by adjusting the coefficients of H2O.
Finally, balance the hydrogen and chlorine atoms by adjusting the coefficients of HCl and Cl2.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.
영상 길이:
1m

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Balancing Chemical Equations

Balancing chemical equations involves ensuring that the number of atoms for each element is the same on both sides of the equation. This is based on the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction. To balance an equation, coefficients are adjusted in front of the chemical formulas to achieve equal atom counts.
추천 영상:
가이드 코스
01:32
Balancing Chemical Equations

Oxidation-Reduction Reactions

Oxidation-reduction (redox) reactions involve the transfer of electrons between species, resulting in changes in oxidation states. In the given equation, manganese (Mn) undergoes a change in oxidation state, indicating it is being reduced, while chlorine (Cl) is being oxidized. Understanding these processes is crucial for correctly balancing redox reactions.
추천 영상:
가이드 코스
01:53
Oxidation and Reduction Reactions

States of Matter in Chemical Reactions

The states of matter (solid, liquid, gas, and aqueous) in a chemical equation provide important information about the physical state of the reactants and products. In the equation provided, MnO2 is a solid, HCl is aqueous, and Cl2 is a gas, which can influence reaction conditions and the balancing process. Recognizing these states helps in accurately interpreting and balancing the equation.
추천 영상:
가이드 코스
03:25
Element States of Matter
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