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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.
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Table sugar completely dissolved in water is an example of a?
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You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring
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Cho 18 gam hỗn hợp gồm Zn và Cu tác dụng với dd 300ml H2SO4 loãng (dư). Sau phản ứng thu được 4,48 l...
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