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☆☆☆☆☆Cards in this guide (5)
What happens to a substances temperature during a phase change
The temperature either increases or decreases which causes the different phase changes
How is the Hfusion used to calculate the energy released when a mass of liquid freezes
Grams Liquid x mol/g x Hfusion
What can be said about the reaction 2NH3 g N2 g 3H2 g H 92.4 kJ mol
The Reaction is Endothermic
What happens when a glass of water is set out in the sun until the water evaporates
Water is transformed in vapors.
Describe energy in an exothermic reaction
An exothermic reaction gives out energy (the reactants heat up) as the reaction proceeds.
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