Can the density of an object change?

The density of an object can change if either the mass or the volume has changed.

An items density is its mass divided by its volume. So if you change the shape and the mass and volume remain the same the density does not change but if you change the volume and/or mass then the density will change.

Answer : option c) heat is released during the process.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.

Cause its being chemically applied?