What happens to the wavelength and frequency of light as you move from red to violet? A. Both wavelength and frequency increases.
B. Both wavelength and frequency decreases.
C. Wavelength decreases and frequency increases.
D. Wavelength increases and frequency decreases.

what is the question?

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.