A. Bond energy
B. Activation energy
C. Ionization energy
D. Enthalpy of neutralization
E. Enthalpy of formation
Correct Answer:
Option E – Enthalpy of formation
What does X represent in the following equation? H2(g) + ½O2(g) → H2O (l); ∆H = xKJ.
![Consider the following reaction equation: CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(l) + CO2(g). What mass of CaCI2 would be obtained when 25.0g of CaCO3(s) is reacted with excess HCI(aq)? [CaCO3 = 100; CaCI2 = 111]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "Consider the following reaction equation: CaCO3(s) + 2HCI(aq) → CaCl2(aq) + H2O(l) + CO2(g). What mass of CaCI2 would be obtained when 25.0g of CaCO3(s) is reacted with excess HCI(aq)? [CaCO3 = 100; CaCI2 = 111]")
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