L
pretest: unit 3
question 9 of 33
1 point
what is the density of a brick with a volume of 0.0010 m3 and a mass of 1.9
kg?
o a. 0.00053 kg/m3
ob. 0.0019 kg/m3
o c. 1900 kg/m3
o d. 1.9 kg/m3

With i really need the correct answer!

Asher cycles 12 miles in 16 hours. what is his speed?

Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.