What is the metric unit of weight? gram/pound/newton/milliliter

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

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.

What happens when you slowly pulled the carboard?