CN−(aq)+H2O(l)⇌HCN(aq)+OH−(aq)CN−(a q)+H2O(l)⇌HCN(aq)+OH−(aq) Check all that apply. Check all that apply. HCN/OH−HCN/OH− HCN/CN−HCN/CN− H2O/CN−H2O/CN− H2O/OH−

The correct answer is

Explanation:

According to the Bronsted-Lowry conjugate acid-base theory, an acid is defined as a substance which looses donates protons and thus forming conjugate base and a base is defined as a substance which accepts protons and thus forming conjugate acid.

= Bronsted-Lowry base

= Bronsted-Lowry acid

= Conjugate acid

= Conjugate base

The correct answer is

the answer is b. dilution

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3