Biology
Biology, 01.08.2019 18:30, radazharula1

Which of the following is a correctly balanced equation? naclo3 β†’ nacl + 3o2 2hgo β†’ 2hg + o2 2zns + o2 β†’ 2zno + 2so2 4co + fe3o4 β†’ 4co2 + fe 2fe + 2cl2 β†’ 2fecl3

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Which of the following is a correctly balanced equation? a. naclo3 β†’ nacl + 3o2 b. 2hgo β†’ 2hg + o2 c. 2zns + o2 β†’ 2zno + 2so2 d. 4co + fe3o4 β†’ 4co2 + fe e. 2fe + 2cl2 β†’ 2fecl3
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2zns+3o2=2zno+2so2 how many miles of excess react ant remain
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Chemistry, 17.10.2019 06:40, notearslefttocry14
Given the following reactions and subsequent βˆ†h values what is the βˆ†h for the reaction below? zn(s) + 1/8s8(s) + 2o2(g) β†’ znso4(s) given: zn(s) + 1/8s8(s) β†’ zns(s) βˆ†h = -183.92kj 2zns(s) + 3o2(g) β†’ 2zno(s) + 2so2(g) βˆ†h = -927.54kj 2so2(g) + o2(g) β†’ 2so3(g) βˆ†h = -196.04kj zno(s) + so3(g) β†’ znso4(s) βˆ†h = -230.32kj answers options: a) 244.01 kj b) 488.02 kj c) -488.02 kj d) -976.03 kj e) 976.03 kj
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Chemistry, 11.11.2019 11:31, psa180
Which of these reactions are redox reactions? check all that apply. cd + hcl β†’ cdcl2 + h2 cucl2 + na2s β†’ 2nacl + cus caco3 β†’ cao + co2 2zns + 3o2 β†’ 2zno + 2so2 ch4 + 2o2 β†’ co2 + 2h2o
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Which of the following is a correctly balanced equation? naclo3 β†’ nacl + 3o2 2hgo β†’ 2hg + o2 2zns...

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