A. 1 proton and 1 neutron
Answer:it reacts chemically to produce heat and gas with rapid expansion of matter. It is a rapid chemical reaction
Explanation:
Density is mass/volume so if you double the mass you would also double the volume which means density would stay the same. Density is the amount of of matter in a given area and it is constant for the substance regardless of differences in mass or volume.
I provided the work and answers below, <em>sorry about the red font.</em>
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Answer:the CO2 molecule has an excess of electron
