15 points Please help me Part C Place the copper strips in test tubes 3 and 6. If the strips are too wide, you may bend
them to fit them in the test tubes.
Place the magnesium strips in test tubes 1 and 4. If necessary, use the stirring rod to push
the strips down until they're entirely submerged.
Place the zinc strips in test tubes 2 and 5.
Record your observations of the appearance of the substances in the test tubes
immediately after adding the metal strips. Include any evidence of a chemical reaction. If
there's no evidence of a reaction, write "no reaction."

The answer is !

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.

Ithink it's the third answer

Change of state has wrong energy change - option 2

brian made this table to organize his notes on changes of state. depostion is a change of state that has the wrong energy change listed. it is utilized to collect data as a portion of the development means and in restricted conditions which may be applied at test.

a deposition in the authority of the united states or research for development in the authority of canada includes the catching of affirmed. the out-of-court verbal assertion of a spectator that may be lessened to a printed record for succeeding application for discovery purposes.