Asample of oxygen gas is sealed in container x. a sample of hydrogen gas is sealed in container z. both samples have the same volume, temperature,
and pressure. which statement is true?
(1) container x contains more gas molecules than container z.
(2) container x contains fewer gas molecules than container z.
(3) containers x and z both contain the same number of gas molecules.
(4) containers x and z both contain the same mass of gas.

(3) Containers X and Z both contain the same number of gas molecules is your answer. Following Avogadro's law, under the same temperature and pressure, the number of gas molecules is directly proportional to the volume of the gas. Equal volume under the same conditions means equal number of gas molecules.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.