Avessel contains 30 ml of water. a sample of 5.0 g of copper metal is dropped into this vessel, raising the level of water in it to 40 ml. what is the density of the copper sample

0.5 g/cm³

0.5 g/ml

Explanation:

density = mass/volume

mass= 5 g

we look for volume which is the difference between the teo volumes.

40 - 30 =10ml

if you convert this to cm³ you will have

10 x 1 =10 cm³

density = 5/10 = 0.5g/cm³ or 0.5g/ml

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both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .