1. true or false: all matter on earth contains
2. true or false: the molecules and frozen water are in motion
3. true or false ice is too cold to have thermal energy
4. which way will heat flow when i and water are combined in a glass?

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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.