Based on the molecular diagram, classify each change as physical or chemical.

검증된 단계별 안내

Identify the initial and final states of the molecules in the diagram.

Determine if there is a change in the chemical composition of the molecules. A change in chemical composition indicates a chemical change.

Look for changes in the arrangement of atoms within the molecules. If atoms are rearranged to form new substances, it is a chemical change.

Check for changes in the physical state (solid, liquid, gas) without altering the chemical identity. Such changes are physical changes.

Classify each change based on your observations: if the chemical identity remains the same, it is a physical change; if new substances are formed, it is a chemical change.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

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

Physical Change

A physical change involves a transformation that does not alter the chemical composition of a substance. Examples include changes in state (like melting or boiling), shape, or size. During a physical change, the molecules remain intact, and no new substances are formed.

Chemical Change

A chemical change results in the formation of one or more new substances with different chemical properties. This process often involves a reaction where bonds between atoms are broken and formed, such as in combustion or rusting. Indicators of a chemical change can include color change, gas production, or temperature change.

Molecular Diagram Interpretation

Interpreting a molecular diagram requires understanding the arrangement and types of atoms involved in a substance. This visual representation helps identify whether changes in the diagram indicate a physical alteration (like a change in state) or a chemical reaction (where new bonds form). Recognizing these changes is crucial for classifying them accurately.