Answer:
the time required for one half of a sample of a radioisotope to decay
Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. It is often referred to by its formula CO2. It is present in the Earth's atmosphere at a low concentration and acts as a greenhouse gas. In its solid state, it is called dry ice. It is a major component of the carbon cycle.
The operating properly of a chemical plant would have to the same property of any chemicals but its in a plant form instead of test tubes it would have a stem and leaves and you could squeaz the plant and get it out of the plant
The oxygen has 8 protons and 8 neutrons <span>in your nucleus
A = z + n
n = 18 - 8
n = 10 neutrons
Answer (3)
hope this helps!</span>
