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Aluminium is higher on the reactivity series than iron. This means that it is more reactive than iron. As a result, it displaces iron from the compound iron oxide in a displacement reaction, creating a...
The temperature of the surrounding is decreased because energy is taken into the reaction. An example of this is two solutions A and B being mixed and the resultant product mixture having lower tempera...
Balancing chemical equations can seem tricky at first, especially when starting out. But by following an order it becomes a quick and easy task. For the sake of this question, we'll balance th...
The atomic number.
Chlorine, bromine and iodine.
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