Aphysical property can be observed or measured without changing the identity of a substance. which of these choices describes a physical property?

the temperature at which a liquid will boil.

the tendency of a substance to explode.

the tendency of a metal to rust or not rust.

the way the substance reacts with water.

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

Why is retrograde motion an apparent motion