WebWhen a chemical reaction takes place, there is an energy change. The energy change usually results in an energy transfer between the system (the substances that are involved in the reaction) and its surroundings (the system’s environment). In the case of the precipitation of silver chloride, we consider the system to be the reactants (AgNO3 ... Web5** Practise questions with answers for chemistry #chemistry #hkdse #hkdse2024 #drilling #examination #hkdse2024 #hkdse2024 #hkdse2024 #hkdse2025 #hkdse2026 ...
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