The image depicts a page from a textbook or workbook. The top portion of the page shows an energy profile diagram for the reaction between H⁺(aq) and OH⁻(aq) to form H₂O. The reactants are shown at a higher energy level than the product, with a downward arrow indicating energy release. The change in enthalpy (ΔH) is given as -57 kJ. Below the energy profile, there is text that reads, "Draw energy diagrams to scale, on graph paper, representing the heat (enthalpy) change of the following:". Two chemical reactions are listed as (a) and (b). Reaction (a) is P(s) + 1½ Cl₂(g) → PCl₃(l); ΔH = 450 kJ/g. Reaction (b) is Zn(s) + 2H⁺(aq) → Zn²⁺(aq); ΔH = 150 kJ/g. The image is not of a scene in Jalingo, Nigeria, but rather of printed educational material. in Jalingo, Nigeria

FM-66btC3

Jun 30, 2026, 2:33 PM

Jalingo, Nigeria

Short Term

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educational

scientific

analytical

informative

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The image depicts a page from a textbook or workbook. The top portion of the page shows an energy profile diagram for the reaction between H⁺(aq) and OH⁻(aq) to form H₂O. The reactants are shown at a higher energy level than the product, with a downward arrow indicating energy release. The change in enthalpy (ΔH) is given as -57 kJ. Below the energy profile, there is text that reads, "Draw energy diagrams to scale, on graph paper, representing the heat (enthalpy) change of the following:". Two chemical reactions are listed as (a) and (b). Reaction (a) is P(s) + 1½ Cl₂(g) → PCl₃(l); ΔH = 450 kJ/g. Reaction (b) is Zn(s) + 2H⁺(aq) → Zn²⁺(aq); ΔH = 150 kJ/g. The image is not of a scene in Jalingo, Nigeria, but rather of printed educational material.

Symbol

72B1F

Volume

11,550

Creator

+$0.03

Revenue

+$0.05

TVL

$2.70

All

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