Formula : BaI₂. <span>barium iodide</span>
Ba2+ and Cu2+, and Sr2+ and Li+
B) a molecule
A molecule is formed when two atoms join together with a covalent bond.
Ice floats because it is about 9% less dense than liquid water. ... The heavier water displaces the lighter ice, so ice floats to the top. One consequence of this is that lakes and rivers freeze from top to bottom, allowing fish to survive even when the surface of a lake has frozen over
Answer:
6H20 represents six molecules of water