Select the correct answer.
which particles make up the nucleus of an atom?
a.
protons and electrons
b.
neutrons and electrons
c.
protons only
d.
protons and neutrons
e.
neutrons only

22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g