What is the oxidation state of Cr in each compound? c. Cr₂O₃

검증된 단계별 안내

Identify the oxidation state of oxygen in compounds, which is typically -2.

Let the oxidation state of chromium (Cr) be x.

Write the chemical formula Cr2O3, which indicates there are 2 Cr atoms and 3 O atoms.

Set up the equation based on the sum of oxidation states: 2(x) + 3(-2) = 0, because the compound is neutral.

Solve the equation for x to find the oxidation state of Cr.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

도움이 되었나요?

주요 개념

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

Oxidation State

The oxidation state, or oxidation number, is a value that represents the total number of electrons an atom either gains or loses when it forms a chemical bond. It helps in understanding the electron transfer in redox reactions and is crucial for determining the reactivity and stability of compounds.

Rules for Assigning Oxidation States

There are specific rules for assigning oxidation states, such as the fact that the oxidation state of an element in its elemental form is zero, and for monoatomic ions, it equals the charge of the ion. In compounds, the sum of the oxidation states must equal the overall charge of the compound, which is particularly important for polyatomic compounds.

Chromium Compounds

Chromium can exhibit multiple oxidation states, commonly +2, +3, and +6. In the compound Cr2O3, chromium is in the +3 oxidation state, as the oxygen typically has an oxidation state of -2, leading to a total of +6 from two chromium atoms to balance the three oxygen atoms.

What is the oxidation state of Cr in each compound? c. Cr2O3