what property of water makes it a liqiudand not a sold
ice?
if somthing has a high density,what does that mean
Um... wasn't that already answered by bobpursley? I am a 7th grader so i know how to read.
what property of plasticis important for it to be used when picking up an hot item
Bobpursley told you what high density means:
" It means the mass per volume is higher than a comparable sample"
Please post your plastic question as a new question.
Um... just wondering but why do you keep on posting the same question about high density? Not trying to be nosy. You don't have to answer.
The property of water that makes it a liquid rather than a solid is its relatively low freezing point. The freezing point of water is 0 degrees Celsius or 32 degrees Fahrenheit. This means that at temperatures below 0 degrees Celsius, water molecules slow down and come together, forming a solid state known as ice.
To understand why water is a liquid at room temperature, we need to consider its molecular structure and the forces between its molecules. Water is a molecule composed of two hydrogen atoms bonded to one oxygen atom, forming a bent or V-shaped structure. This molecular shape gives water unique properties.
In the liquid state, water molecules are constantly moving and in constant motion due to their thermal energy. The intermolecular forces, specifically hydrogen bonding between water molecules, play a significant role in keeping them closely packed but still mobile. Hydrogen bonding occurs when the slightly positive hydrogen atoms in one water molecule are attracted to the slightly negative oxygen atoms in neighboring water molecules.
These hydrogen bonds are relatively weaker than chemical covalent bonds but stronger than other intermolecular forces, such as van der Waals forces. The continuous breaking and reforming of hydrogen bonds allow water molecules to move past one another while still being attracted to each other, giving water its fluidity.
When the temperature is lowered to 0 degrees Celsius or below, the thermal energy decreases, making the water molecules move slower and less energetically. This reduction in energy allows the hydrogen bonds to become more stable and form a crystalline lattice structure, resulting in the solid state of ice.
In contrast, at temperatures above 0 degrees Celsius, the increased thermal energy causes water molecules to move faster and overcome the intermolecular forces. This is why water remains in its liquid state at room temperature, as the thermal energy is not sufficient to break the hydrogen bonds completely and convert it into a gas.
In summary, water's ability to form hydrogen bonds due to its molecular structure and the relatively low energy required to disrupt these bonds is what allows it to exist as a liquid at room temperature.