Explanation: The number of atoms for each element in the formula are calculated by looking at the subscripts and the coefficient. The calculation is given as Al atoms =2x1, S atoms = 3x1 and O atoms = 3x4.
Hydrogen and oxygen are often found in the form of H2O but even if hydrogen surpasses oxygène in number it doesn't when it comes to mass because M(O) = approximately x16 M(H)
2<span>. the amount of G = the amount of C (pairing ratio of 1:1) c. the hydrogen bonds hold the molecule in its defintive shape. Complementary bases</span>
