Copper has two isotopes, copper-63 and copper-65. It has an atomic mass of 63.546 amu. Determine the percentage of copper-63 isotope present. Hint: Let x represent the amount of copper-63 and let 1-x represent the amount of copper-65. Round your final answer to the nearest percent.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

girl imma just put my comment here because i need a couple point okurrttt

you need to stop taking that class