Answer:

1.) Chlorine Trifluoride is the most flammable gas

Of all the dangerous chemical gases, chlorine trifluoride is known to be the most flammable.

2.) they float on water but are not soluble in it;

3.) they are greasy to the touch, and have lubricating properties;

1.) they are not readily volatile;

2.)and may be burned without leaving any residue, i.e., ash.

3.) The common physical properties of such oils and fats are that they float on water but are not soluble in it; they are greasy to the touch, and have lubricating properties; they are not readily volatile; and may be burned without leaving any residue, i.e., ash

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