OCAS GAME Which of the following details from the passage best supports the main idea that
"Serena enjoys searching for shells and other creatures on the beach”?
READS
RESPOND
A
"Serena
crossed the beach."
B
"It was early morning, and the ocean tide was low."
QUIZ
с
"...sand shifting beneath her feet as she ran."
LYRIC LAS
D
** ...hairy and ancient hermit crabs and swift, darting minnows and sometimes a
crumbling sand dollar..."

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.

Fill in the blanks for the following statements: the rms speed of the molecules in a sample of h2 gas at 300 k will be times larger than the rms speed of o2 molecules at the same temperature, and the ratio µrms (h2) / µrms (o2) with increasing temperature.