AC ¿Cuál de los siguientes sistemas representan una solución
amortiguadora?
- NaOH/NH3
KF/HF
HCI/NaCl

How does science use models to gain a better understanding of concepts?

Time remaining 58: 10 an atom that has 84 protons and 86 neutrons undergoes a reaction. at the end of the reaction, it has 82 protons and 84 neutrons. what happened to the atom? it accepted radiation in a chemical reaction it donated neutrons to another atom in a chemical reaction it emitted an alpha particle in a nuclear reaction. it accepted protons in a nuclear reaction. mark this and retum save and exit next submit

For either problem would be greatly appreciated