Use CER format and label each part. Support your answers to question 15 and 16 with evidence. As part of your evidence include the number and types of the specific molecules before and after cooling as well as evidence of a chemical change. (Pls help xnnsx)

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

Hope the image of the frequency formula