What kind of reaction is represented by 2K + 12 + 2KI?
O
A. A double-replacement reaction
O
B. A single-replacement reaction
O
C. A synthesis reaction
O
D. A decomposition reaction

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

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;