Suppose you wanted to make the smaller glass "disappear," that is, make it appear to be invisible. How would the index of refraction of the liquid inside have to compare to the index of refraction of the glass? Explain your reasoning.

i think   the answer is c hope i'm right

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.

i only know number one that’s a galaxy