An iron nail is placed in a solution of blue copper(II) sulfate. Over time, a brown solid appears and the solution becomes colourless. This is because copper and a solution of iron(II) sulfate forms.
It's important to use the names and chemical symbols for the first 20 elements in the periodic table, as well as the elements in groups 1 and 7.
You should have at-least one formula book for every science subject to get good grades in your board exam and also to do well in competitive exams such as JEE and UPSC. These formula books will help ...
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