In an ideal gas, collisions between molecules . A.
are elastic
B.
do not lose energy due to friction
C.
result in the total energy of the system remaining constant
D.
all of the above

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.

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)