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The bonds that link many water molecules together to form a water drop are bonds.?
Wiki User
∙ 7y ago
Hydrogen.
Reynold Berge
Wiki User
∙ 10y agohydrogen
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Is water vaporizing a chemical or physical change?
Water evaporating is probably one the most critical things that occurs in nature in order for us and other life form to exist. It is of course a physical change, because the water molecule that has evaporated still has the potential to turn back into water and keep it's previous qualities of a water drop. A chemical change is where water is mixed with another liquid and it's molecular structure changes, even in liquid form. Water becomes a gas because the water drop has billions of molecules in it's chain, that are held together by electrical forces. These molecules are constantly vibrating at terrific speeds, the hotter the temperature, the faster the molecules vibrate. So when the water becomes too hot, the molecules vibrate so extensively that they overcome their bonds and fly apart. This is why when water boils, the oxygen and HO molecules that have overcome their bonds rapidly rise to the surface and make the water uneven when it boils.
Why a drop of water put on a glass plate spreads?
because the cohesion of water molecules is less stronger than the adhesion of the water molecules
A drop of water has a volume of 0.05mL how many water molecules does it contain?
How big is a drop? "A drop" is not a precise measurement. It depends on a number of factors. If you measure how big the drops of water are you're talking about, (in millilitre) then you could figure out the number of molecules based on the fact that Avogadro's number of water molecules have a volume of about 18 milliliters. Avogadro's number is 6.022 * 1023 (particles) per mole One drop: average volume about 0.05 ml = 0.05 g Molar mass of water 18.01 g/mol Meaning: about 1.7*1021 molecules in a drop of water: don't start counting them!!
Why food coloring dissolves faster in hot water than cold water?
Food colouring dissolves faster in hot water because the water molecules have more energy and they move around more creating larger gaps for the food colouring molecules to fit into, while the cold water has less energy and the water molecules are closser together making it harder for the food colouring to dissolve
What must happen to water in the liquid phases for it to become water in the gaseous phase?
The hydrogen bonds between Hydrogens of one water molecule and the oxygen of another water molecule must break. These are not actual bonds but they are interactions of the dipole moments produced by the difference in electronegativity between the hydrogen and oxygen atoms in a single water molecule. When enough heat or drop in pressure is produced the molecules will dissociate from one another and enter a vapor phase.
When are the most hydrogen bonds likely to reform between water molecules in a lake?
The most hydrogen bonds are formed when temperatures on the lake drop to freezing. The molecules spread out and attract to each other in a dipole effect.
What causes a water drop to form a sphere as it falls?
surface tension , water molecules trying to stick together will form the easiest shape a sphere
Is water vaporizing a chemical or physical change?
Water evaporating is probably one the most critical things that occurs in nature in order for us and other life form to exist. It is of course a physical change, because the water molecule that has evaporated still has the potential to turn back into water and keep it's previous qualities of a water drop. A chemical change is where water is mixed with another liquid and it's molecular structure changes, even in liquid form. Water becomes a gas because the water drop has billions of molecules in it's chain, that are held together by electrical forces. These molecules are constantly vibrating at terrific speeds, the hotter the temperature, the faster the molecules vibrate. So when the water becomes too hot, the molecules vibrate so extensively that they overcome their bonds and fly apart. This is why when water boils, the oxygen and HO molecules that have overcome their bonds rapidly rise to the surface and make the water uneven when it boils.
Why does drop of water appear like pearl?
A drop of water appears like a pearl due to the cohesive forces among its molecules. Forces of attraction between water molecules and other molecules called adhesive forces.
Why a drop of water put on a glass plate spreads?
because the cohesion of water molecules is less stronger than the adhesion of the water molecules
How does the water stay on a pennies?
Surface tension, place a drop of detergent on the water and it breaks the meniscus allowing the water to flow away. Also the cohesion makes the water molecules stay together. It is not because of the ridge.
Why does the freezing point of water drop when salt is added?
As explanation may be the interactions between the molecules of water and the molecules of the solute; the entropy of the solute is then decreased.
A drop of water has a volume of 0.05mL how many water molecules does it contain?
How big is a drop? "A drop" is not a precise measurement. It depends on a number of factors. If you measure how big the drops of water are you're talking about, (in millilitre) then you could figure out the number of molecules based on the fact that Avogadro's number of water molecules have a volume of about 18 milliliters. Avogadro's number is 6.022 * 1023 (particles) per mole One drop: average volume about 0.05 ml = 0.05 g Molar mass of water 18.01 g/mol Meaning: about 1.7*1021 molecules in a drop of water: don't start counting them!!
How does hydrogen bonds cohesion and surface tension allow some insects and animals to walk on water?
The answer is pretty simple, and has to so with properties of water, mostly, not insects. Water molecules are polar molecules containing Oxygen and Hydrogen. This allows them to form hydrogen bonds when in close proximity to each-other (hydrogen bonds are a strong type of Inter-molecular force.) The molecules on the surface, however, have less water molecules near them, and so form stronger hydrogen bonds with nearby water molecules. Some insects, like the iconic water strider, have large feet to displace their weight over a large area, and thus avoid breaking the surface hydrogen bonds, which allows them to "walk on water."
Where does your water vapour condense?
Water vapor condenses when warm air rises, and temperatures drop. It is easier to condense in cold air because the molecules are moving more slowly, so they can stick together better.
Does the pressure of a liquid depend on its density?
Density is an intrinsic property, and as such it does not depend on the size of the object. A drop of water will have a density of 1g/ml whether it is a big drop, or a very small drop.
Why food coloring dissolves faster in hot water than cold water?
Food colouring dissolves faster in hot water because the water molecules have more energy and they move around more creating larger gaps for the food colouring molecules to fit into, while the cold water has less energy and the water molecules are closser together making it harder for the food colouring to dissolve
