The given code assigns the string values 'ant', 'bat', and 'camel' to the variables a, b, and c respectively. The print function is called with these variables and the sep parameter set to an empty string. The sep parameter in the print function determines what separates the objects being printed. Since sep is set to an empty string, there will be no separator between the printed values. Therefore, the output will be 'antbatcamel' with no spaces or other characters between the words.

The code contains a syntax error. Specifically, the comparison within the if statement uses a single equals sign (i % 2 = 0) which is incorrect for equality comparison in Python. It should use a double equals sign (i % 2 == 0). Therefore, the code will not run and will raise a syntax error. Hence, the expected output is that the code is erroneous.

The code snippet has a for loop that iterates over the range (1, 3), which means it will run for i=1 and i=2. In each iteration, print('*', end='') will execute, which prints '*' without moving to a new line. After the loop, the else clause will execute, printing '*' and moving to a new line. Therefore, the entire output will be '***' on a single line.

The value given as 34.23 can be represented in scientific notation in multiple ways. Option .3423e2 represents 0.3423 multiplied by 10 to the power of 2, which equals 34.23. Similarly, option 3423e-2 represents 3423 multiplied by 10 to the power of -2, which is also 34.23. Therefore, the correct representations for 34.23 are options .3423e2 and 3423e-2.

The code provided has an indentation error. In Python, indentation is crucial for defining the blocks of code under control structures such as if-else statements. The else block is not correctly aligned with the if block. Python will throw a syntax error because of this incorrect indentation. Therefore, the code is erroneous.