To calculate the energy released within a calorimeter, the mass, temperature change, and specific heat capacity must be known.
true or false?

"Yes" to calculate calorimeter ,you need to know the mass,temperature change and specific heat .answer is "true"

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