Which experiment could the scientists use that would best determine if these tiny structures are spores? O Test them for chemicals normally found in living cells. O Observe whether they are made of atoms by using a high-powered microscope. Place them in water and see if they change in shape or mass. Observe whether they go through the steps of cell division to form new cells.

at the bottom

explanation:

quartz

explanation:

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.

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