<span>In melting only one substance is involved and the liquid and solid are the same material. Heat is needed for melting to occur. Dissolving involves two materials; the resulting solution is a mixture of both. The dissolved substance is still present in the solution even though it can't be seen.</span>
The statement that correctly explains the molecular structure of water is A. One oxygen (O) and two hydrogen atoms (H2) are joined by a covalent bond.
It cannot be ionic, since ionic bonds tend to be sold at room temperature.
Two hydrogen atoms interact to form a hydrogen molecule. The bond that would be present in these atoms would be covalent bonding. A covalent<span> bond is a chemical bond that involves the sharing of electron pairs between atoms. Hope this answers the question. Have a nice day.</span>
Answer:
Answer. Explanation: Chlorine gas bleaches the damp litmus (red or blue). Bleaching is an oxidation process.