Answer:
It's C
Protons repel the neutrons.
Explanation:
An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. The instability of an atom's nucleus may result from an excess of either neutrons or protons.
21.69mL - 20.70mL = .99mL Fe
7.8 g / .99 mL = 7.9g/mL
Answer:325 mL of acid
Explanation:250 mL + 75 mL = 325 mL
You should try to strt a conversation with him or say hi introduce yourself or ask him how hes doing just talk to him i guess
