Q: How is energy expressed when it is released in a chemical reaction? Read this paragraph and choose the correct option from the provided answers: When energy is released in a chemical reaction or process, that energy is expressed as a negative number. Figure below shows electron affinities in kJ/mol for the main group elements. Choices: - as an equation - as a percentage - as a positive number - as negative number A:
The answer to this question is:
as negative number