Gravity is a ____ force.
Gravity is a universal force because it acts between any two masses anywhere in the universe.
Sodium carbonate is a basic salt because it is a salt of
(a) strong acid and strong base
(b) weak acid and weak base
(c) strong acid and weak base
(d) weak acid and strong base
A solution has a pH value of 11. What kind of a substance is it?
Name a strong base and weak base