I am confused about this statement about water
Which of the following is TRUE regarding water
only covalent bonds are broken when ice melts (dont think so)
all of the staements (A-D) are false
energy must be given off in order to break down the crystal lattice of ice to a liquid (dont think so)
liquid water is less dense than solid water ( don't think so...I think its the reverse)
hydrogen bonds are stronger than covalent bonds (dont think so ..i think they are weaker)
So I think all of the statements are in correct so the answer is ...All of the statements (A-D)are false.
Do you agree with me??
Thanks andy
Sounds ok.
Yes, I agree with your assessment. None of the statements mentioned are true regarding water. Let's go through each statement and explain why they are incorrect:
1. "Only covalent bonds are broken when ice melts" - This statement is false. When ice melts, the hydrogen bonds between water molecules are broken, not just the covalent bonds within the water molecules.
2. "Energy must be given off in order to break down the crystal lattice of ice to a liquid" - This statement is false. In fact, energy must be absorbed or added to the system in order to break the hydrogen bonds and transition from solid ice to liquid water. This process is known as the endothermic phase transition.
3. "Liquid water is less dense than solid water" - This statement is false. An unusual property of water is that its solid form (ice) is less dense than its liquid form. This is due to the way water molecules arrange themselves in a crystal lattice when freezing, causing them to be spaced out and resulting in a decrease in density.
4. "Hydrogen bonds are stronger than covalent bonds" - This statement is false. Covalent bonds are much stronger than hydrogen bonds. Covalent bonds involve the sharing of electrons between atoms, while hydrogen bonds are a type of intermolecular force that occurs between molecules with hydrogen atoms bonded to highly electronegative atoms (such as oxygen). Hydrogen bonds are weaker and are easily broken compared to covalent bonds.
Based on this analysis, your conclusion that all the statements are false is correct.