In amalgams , one of the constituent metals is essentially:
a)hg
b)ag
c)au
d)pt

Hg

because amalgams are those compounds made up of mercury and any other metal

one state would change   like louisiana to texas. thats a change

explanation:

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.