Which one of the following statements about electrochemical cells is correct? In the external wire, electrons travel from cathode to anode. The anode of a voltaic cell is labeled minus (–). In a salt bridge, current is carried by cations moving toward the anode, and anions toward the cathode. Oxidation occurs at the cathode, in an electrolytic cell. None of these choices are correct.

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

What is true for a substance that releases energy