In an experiment, potassium chlorate decomposed according to the following chemical equation. KClO3 → KCl + O2

(Molar mass of KClO3 = 122.5 g/mol; KCl = 74.55 g/mol; O2 = 31.998 g/mol)

If the mass of potassium chlorate was 240 grams, which of the following calculations can be used to determine the mass of oxygen gas formed? (4 points)

Group of answer choices

(240 x 2 x 31.998) ÷ (122.5 x 3) grams

(240 x 2 x 122.5) ÷ (31.998 x 3) grams

(240 x 3 x 122.5) ÷ (31.998 x 2) grams

(240 x 3 x 31.998) ÷ (122.5 x 2) grams

first one is the correct answer

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 .