4. Identify which of the following are oxidation-reduction reactions. If a reaction is a redox reaction,
name the element oxidized and the element reduced.
a. Mg(s) + Br_(n) β MgBr_(s)
b. H2CO3(aq) β H2O(l) + CO2(g)
c. CaCO3(s) + 2HCl(aq) β CaCl (aq) + H2O(1) + CO2(g)
d. CuOls) + H2(g) β Cu(s) + H2O(1)
e. Li(s) + H2O11 - LiOH(aq) + H2(g)
f. NaCl(aq) + AgNO3(aq) β NaNO3(aq) + AgCl(s)
g. HgO(s) β Hg(l) + O2(g)
h. P.(s) + O2(g) β P,0,0(s)
i. C3H2(g) + O2(g) β CO2(g) + H2O(g)
j. Al(s) + HCl(aq) β AICI (aq) + H2(g)
Answers: 3
Chemistry, 22.06.2019 13:30
1) which of the following is the best example of a physical change? a) sugar dissolving in tea b) firefly glowing 2) in the combustion of ethane, what is/are the reactants? c2h6 + o2 ==> co2 + h2o a) c2h6 and o2 b) co2 and c2h6
Answers: 2
Chemistry, 22.06.2019 21:50
Answer the questions about this reaction: nai(aq) + cl2(g) β nacl(aq) + i2(g) write the oxidation and reduction half-reactions: oxidation half-reaction: reduction half-reaction: based on the table of relative strengths of oxidizing and reducing agents (b-18), would these reactants form these products? write the balanced equation: answer options: a. 0/na -> +1/na+1e- b. nai(aq) + cl2(g) β nacl(aq) + i2(g) c. +1/na+1e- -> 0 /na d. -1/2i -> 0/i2+2e- e. no f. 4nai(aq) + cl2(g) β 4nacl(aq) + i2(g) g. 2nai(aq) + cl2(g) β 2nacl(aq) + i2(g) h. 4nai(aq) + 2cl2(g) β 4nacl(aq) + 2i2(g) i. nai(aq) + cl2(g) β nacl(aq) + i2(g) j. 0/cl2+2e -> -1/2cl- k. yes
Answers: 1
Chemistry, 22.06.2019 23:30
The density of benzene at 15 Β°c is 0.8787 g/ml. calculate the mass of 0.1500 l of benzene at this temperature. enter your answer in terms of grams
Answers: 2
4. Identify which of the following are oxidation-reduction reactions. If a reaction is a redox react...
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