Is steam a covalent compound or a metallic compound?

Steam is a covalent compound.

Explanation:

beacause metallic compound is a compound that contains one or more metal elements bonded to another element. And steam is  the invisible vapor into which water is converted when heated to the boiling point.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer