Calculate the [H +] in a 0.028 M solution of HCN, K a = 6.2 × 10 –10. a.
1.0 × 10–7 M
b.
4.2 × 10–6 M
c.
1.7 × 10–11 M
d.
8.3 × 10–6 M
e.
none of these

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoft en gain electrons easilygood conductorpoor conductorcan be liquidselements