The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.
Does
The link between atoms remain unchanged.
The molecule remain unchanged.
Neutral atoms are not identical to ions.
A chemical change.
A solid changes directly into a gas in the process called sublimation. Refer to the related link for more information.
The link between atoms remain unchanged.
Yes
The bonds between hydrogen and oxygen atoms of individual water molecules do not change when liquid water changes to ice. This is a physical change called freezing, and does not cause any chemical changes to occur. Only chemical changes can cause changes in chemical bonds.
Yes
The molecule remain unchanged.
Neutral atoms are not identical to ions.
A chemical change.
It is a physical change because only the phase of the salt actually changes - the two compounds do not react. The salt dissolves in the water, but if the water evaporates, the salt is left behind in its solid state.
It does change. Check Table 2 in the related link.
see link below
See the related link.
Molecules are composed of two or more atoms linked together. The attractive forces that link these atoms together are called chemical bonds. The same idea is with forces , except on a larger scale. Forces link MOLECULES to MOLECULES. Bonds link ATOMS to ATOMS.