A chemical formula consists of letters and numbers that represent elements and their quantities in a compound. For instance, H2O indicates two hydrogen atoms and one oxygen atom. This representation is essential for understanding chemical compounds. ;
In 30 seconds, approximately 3.36 x 10^21 electrons flow through the device that delivers a current of 15.0 A. This is calculated by first finding the total charge and then dividing by the charge of a single electron. This calculation helps to understand the relationship between electric current and the flow of electrons.
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