Joanna fills a glass with 30 grams of water. she pours the water into a tray to make ice cubes. the tray has room to make 6 ice cubes. joanna is careful not to spill any of the water as she pours it into the tray with an equal amount in each cube of the tray. how much mass should each of the ice cubes have?

Hence, the mass of each ice cube is 5 grams.

Explanation:

Mass of water in Glass : 30 grams

Rooms available for ice cubes in a tray: 6

Joanna carefully pours out the water from the glass into ice tray without spilling the any water, so, the mass of the water in glass will get equally divided into 6 rooms.

Mass of the water in one cube =

Hence, the mass of each ice cube is 5 grams.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.

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.