When the internal energy of a material increases,: a) its temperature will rise b) it will go through a phase change c) A and B
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The empirical formula of this compound is
To calculate the empirical formula of a compound, the value of moles of each element is needed.
As we have the information of the mass value, we will use the molar mass expression, which corresponds to:
- O
- Fe
As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:
So, the empirical formula of this compound is .
Learn more about empirical formula: brainly.com/question/1247523