En el ejemplo de la reacción de 2g de cobre con aire para producir 2.5 g de un óxido de cobre, ¿en qué ley se basa para deducir que reaccionaron o.5 g de oxígeno con los 2 g de cobre?

If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom

If this is a true or galse then its true but if not then what is the question?

Homogeneoushoped i