Anyone tryna do this for me

Are oil and water a mixture or solution

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

Which of the following is a polyatomic ion? a. calcium, ca2+ b. carbide, c4- c. sulfate, so4 d. selenide, se2-