Which of the following statement is suitable for displacement reaction? (A)Metals are arranged in the increasing order of their reactivity.
(B)Metals are arranged in the decreasing order of their reactivity.
(C)Less reactive metal replaces more reactive metal from their salt solution
(D)More reactive metal replaces less reactive metal from their salt solution.
Please answer and thank you

This drawing shows a human body system. what is the primary function of this body system?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

Effect of rotenone and antimycin a on electron transfer rotenone, a toxic natural product from plants, strongly inhibits nadh dehydrogenase of insect and fish mitochondria. antimycin a, a toxic antibiotic, strongly inhibits the oxidation of ubiquinol. (a) explain why rotenone ingestion is lethal to some insect and fish species. (b) explain why antimycin a is a poison. (c) given that rotenone and antimycin a are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison? explain.