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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.

This is done by a process called cracking.

Cracking is the process by which the crude oil is heated up in the oil refineries to separate the oil into separate molecules/hydrocarbons.