Groups of organs that work together to complete a series of takes are called.. A: Skeletal System
B: Organ System
C: Muscular System

The answer is b, the organ system

30litre of li2o is 1.0002mole approximately 1 mole

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