Which gas is used to provide a shield of inert gas during arc welding of metals like
aluminium?

A. Helium
B. Neon
C. Argon
D. Krypton

What volume would 2.25 moles of ne has occupy at stp?

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.

Which of the following is described by the equation h2o(s)+ heat=h2o(i) a freezing melting condensing evaporating