Answer: Cobalt, because it is an element that is not bonded together with anything else.
<span>NaOH + HCl → NaCl + H2O
1 mol 1 mol
</span>2.75 × 10⁻⁴ mol 2.75 × 10⁻⁴ mol
M(H2O) = 2*1.0 +16.0 = 18.0 g/mol
2.75 × 10⁻⁴ mol H2O * 18.0 g H2O/1 mol H2O = 4.95*10⁻³ g H2O
2.c
idk if it is right
just trying to help
