Answer:
im pretty sure they heat up
Explanation:
as they use energy to go from solid to liquid to gas, they need heat to do so as they have a melting and boiling point
Calcium, sodium and hydrogen
<span>HBr is covalent bond.!
</span>Hydrogen and Bromine will share their electrons, to obtain the electron configuration of a noble gas<span>.
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hope this helps!
The substance is a gas.
The substance takes <em>both the shape and the volume</em> of the container, so it must be a gas.