1. In the image below, the purple particles are protons and the white particles are neutrons. Which of the following equations matches the balanced reaction shown in the diagram?
+
OA H+
H →
H
OBH +
H →
He
Oc He+ H
He
OD ? H +
H
Li
2. What particle completes this equation?
21:21

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The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)

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