It's one ratio per substance so say if you had N2 + 3H2 > 2NH3 (chemical equation for the synthesis of ammonia) just look at the number coefficients(for 3H2 the coefficient would be 3 and for 2NH3 the coefficient would be 2 and so on)So it would take 1mole of nitrogen to react with 3 moles of hydrogen In order to produce 2 moles of ammonia so there would be 6 ratios you could write comparing two substances at a time In a reaction involving 3 substances ^^; hope this helps somewhat ^^;
Answer:
The s-, p-, and d-block elements of the periodic table are arranged into 18 numbered columns, or groups. The elements in each group have the same number of valence electrons. As a result, elements in the same group often display similar properties and reactivity.
Explanation:
The answer to the question is the letter "A. Ionic Bonding".
Ionic bonding involves a lattice of positive ions and the strength between the ions is called enthalpy bonding. This is the type of bonding that involves a lattice of positive ions surrounded by a cloud of delocalized electrons.
