Cody

# Problem 496. Oxidation State

Solution 1923991

Submitted on 6 Sep 2019 by Nikolaos Nikolaou
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### Test Suite

Test Status Code Input and Output
1   Pass
x='sulphuric acid H2SO4'; y = 0-(2*1+4*-2); assert(isequal(y,oxno(x)))

s = 'H2SO4' y = 6

2   Pass
x='sodium hydroxide NaOH'; y = 0-(-2+1); assert(isequal(y,oxno(x)))

s = 'NaOH' y = 1

3   Pass
x='methane CH4'; y = 0-(4*1); assert(isequal(y,oxno(x)))

s = 'CH4' y = -4

4   Pass
x='ethane C2H6'; y = 0-(6*1)/2; assert(isequal(y,oxno(x)))

s = 'C2H6' y = -3

5   Pass
x='acetylene C2H2'; y = 0-(2*1)/2; assert(isequal(y,oxno(x)))

s = 'C2H2' y = -1

6   Pass
x='hypophosphorous acid H3PO2'; y = 1; assert(isequal(y,oxno(x)))

s = 'H3PO2' y = 1

7   Pass
x='(ortho)phosphorous acid H3PO3'; y = 3; assert(isequal(y,oxno(x)))

s = 'H3PO3' y = 3

8   Pass
x='pyrophosphoric acid H4P2O7'; y = 5; assert(isequal(y,oxno(x)))

s = 'H4P2O7' y = 5