Which of these do scientists use to study the world around them? 1.hypothesis 2. inductive reasoning 3. scientific method 4. deductive reasoning

Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.

Acontrol during an experiment. might change remains constant does not exist does change

The number at the end of an isotope’s name is the number.