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anygoal [31]
4 years ago
5

DDT was a hazardous: a)insecticide b)disease c)industrial waste d)weed killer

Chemistry
2 answers:
Y_Kistochka [10]4 years ago
8 0
The answer I think is A
jenyasd209 [6]4 years ago
6 0
The answer is definitely C) industrial waste
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Which solid will be more soluble in water, the one with the larger lattice energy or the one with the smaller lattice energy? as
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What best explains why the box’s final kinetic energy is less than its initial potential energy
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How many Electrons make up 1 Proton
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Ag(s)+CN−(aq)+O2(g)→Ag(CN)−2(aq) Express your answer as a chemical equation. Identify all of the phases in your answer. Express
Lerok [7]

Answer : The balanced redox reaction will be,

4Ag(s)+8CN^-(aq)+O_2(g)+4H^+(aq)\rightarrow 4Ag(CN)_2^-(aq)+2H_2O(l)

Explanation :

The given chemical equation is,

Ag(s)+CN^-(aq)+O_2(g)\rightarrow Ag(CN)_2^-(aq)

In the half reaction method, the number of atoms in each half reaction and number of electrons must be balanced.

The half reactions in the acidic medium are :

Reduction : O_2(g)+4H^+(aq)+4e^-\rightarrow 2H_2O(l)   ......(1)

Oxidation : Ag(s)+2CN^-(aq)\rightarrow Ag(CN)_2^-(aq)+1e^-  .......(2)

Now multiply the equation (2) by 4 and then added both equation, we get the balanced redox reaction.

Thus, the balanced redox reaction will be,

4Ag(s)+8CN^-(aq)+O_2(g)+4H^+(aq)\rightarrow 4Ag(CN)_2^-(aq)+2H_2O(l)

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4 years ago
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The answer is waterspouts

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