Which option is part of designing a set of experimental procedures? A. Developing conclusions based on the data.

B. Identifying the types of data to be gathered.

C. Analyzing the data gathered.

D. Using instruments to gather data.

What is the difference between electrically neutral objects and electrically charged objects

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.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.