The equation shown represents cellular respiration.
Glucose + X - Y + Water + Energy
What do X and Y most likely represent?
X represents carbon dioxide and represents sugar.
X represents oxygen and Y represents carbon dioxide.
X represents sunlight and Y represents hydrogen gas.
X represents hydrogen and Y represents carbon dioxide.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

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.

metric time was an attempt to create a standard unit of time based off of 10, but it never took off an is not included in the metric system (si)