Maybe gas? because you can’t see it and it’s formed during a chemical reaction
No diagram is given therefore I cannot answer however, use this for reference.
The atomic mass of an atom would be the number of protons PLUS the number of neutrons. Because this atom shown has 6 protons and 6 neutrons, they add up to 12. In this case, the atomic mass of this atom is 12. Atomic number is the number of protons in an atom, in this case it is 6. The atomic number is 6.
The correct answer for the question it is option
>>>>D<<<<
%100 sure
if you need another answer welcome to come
Answer:
They mostly dissolve in water, and they are poor conductors of heat.
Answer: C
Explanation: I got it right.