Which process is a way that plants maintain homeostasis? A. Breathing air to gain oxygen
B. Wilting to prevent water loss
C. Sweating to cool down
D. Growing leaves to warm up

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

a electronegativity decreases beacuse the size of nucleus is bigger.

the answer is c. nacl