Answer:
The chemical formula is I2F9
Explanation:
Hi there, the correct answer to this would be reactivity because color, melting point, and density are all examples of physical properties.
Hot-air balloons float because the air caught inside the balloon is heated up by a burner, making it less dense than the air outside. As the burner heats the air, it expands and some of the air escapes; that's what makes it less dense
A. o. I know gamma can I Hope this helps
A now i remember yeah gamma only
