Explanation:
A scientific notation is the notation in which a number is written in a decimal form and it is multiplied by 10 to the respective power.
For example, we have to write 0.0035 kg in scientific notation as \(3.5 \times 10^{-3}\).
Thus, we can conclude that the correct way to represent 0.0035 kg by using scientific notation is \(3.5 \times 10^{-3}\).
