<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def Chemistry(self):
        ''' Get cells chemistry '''
        length = self.bus.read_byte_data(self.address, 0x79) 
        chem = []
        for n in range(length):
            chem.append(self.bus.read_byte_data(self.address, 0x7A + n)) 
        return chem