robinsonaudreea robinsonaudreea

03-02-2022
Chemistry

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Random4400 Random4400

03-02-2022

Answer:

element

Explanation:

An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. • There are about 117 elements.

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darrent29 darrent29

03-02-2022

Answer:

element I think...

Explanation:Im not sure but i guess because a element is a type of force

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Using the equations H₂ (g) + F₂ (g) → 2 HF (g) ∆H° = -79.2 kJ/mol C (s) + 2 F₂ (g) → CF₄ (g) ∆H° = 141.3 kJ/mol 2 C(s) + 2 H₂ (g) → C₂H₄ (g) ∆H° = -97.6 kJ/mol

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