(10 points)
use the periodic table to determine how many atoms of phosphorus (p) are in a sample that has a mass of 172.90 g.

a. 3.48 × 1021 atoms

b. 1.97 × 1022 atoms

c. 3.36 × 1024 atoms

d. 1.04 × 1026 atoms

Will mark brainliest26. which of these statements are true? (3 points)a. gases are compressibleb. gases fill their containers completelyc. the pressure of a gas is independent of the temperatured. gases have masse. gases exert pressuref. the pressure of a gas is dependent on the volumeg. gas pressure results from the collisions between gas particlesh. gases have a definite volume and shape

Can someone me with these questions plz.

Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change