How many moles of CF4 are present in 14,278 grams? (Don’t forget to calculate the molar mass of CF4

A. 162.25 mol

B. 14.28 mol

C. 1.8437 mol

D. 0.54239 mol

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged

Ibelieve the answer is b.2200 watts, because p=vi; p=220(10); then p=2200hope my answer has you : )

They cool it down and aluminum cools easily

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.