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Why starch forms gel in water?
Starch forms a gel in water due to the interaction between starch molecules and water molecules. When starch is heated in water, the granules swell and absorb water, causing them to burst and release amylose and amylopectin molecules. These molecules form a network that traps water, leading to the formation of a gel.
What kind of bond does water commonly make?
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
The type of chemical bond exists between the atoms in a water molecule?
In a water molecule, the atoms are held together by polar covalent bonds. This type of bond forms when electrons are shared unevenly between the atoms, creating regions of slight positive and negative charge.
Why do sucrose molecules associate with water?
Sucrose molecules associate with water because they are polar, with both positive and negative charges. Water molecules are also polar, so they are attracted to the charged regions on the sucrose molecules, forming hydrogen bonds. This interaction between sucrose and water allows sucrose to dissolve in water.
How many carbon dioxide Molecules are in water?
Carbon dioxide is unstable in water. It forms a equilibrium changing between aqueous and gaseous form. This makes it impossible to tell how many molecules are in water.
What name is given to the bond between water molecules?
The bond between water molecules is called the hydrogen bond.
Why starch forms gel in water?
Starch forms a gel in water due to the interaction between starch molecules and water molecules. When starch is heated in water, the granules swell and absorb water, causing them to burst and release amylose and amylopectin molecules. These molecules form a network that traps water, leading to the formation of a gel.
What is the dehydration reaction that forms bonds between molecules?
The dehydration reaction that forms bonds between molecules is typically a condensation reaction. In this process, a water molecule is removed to form a bond between two molecules. It is a common mechanism for building larger molecules like proteins, carbohydrates, and nucleic acids.
What kind of bond does water commonly make?
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
The type of chemical bond exists between the atoms in a water molecule?
In a water molecule, the atoms are held together by polar covalent bonds. This type of bond forms when electrons are shared unevenly between the atoms, creating regions of slight positive and negative charge.
Why do sucrose molecules associate with water?
Sucrose molecules associate with water because they are polar, with both positive and negative charges. Water molecules are also polar, so they are attracted to the charged regions on the sucrose molecules, forming hydrogen bonds. This interaction between sucrose and water allows sucrose to dissolve in water.
How many carbon dioxide Molecules are in water?
Carbon dioxide is unstable in water. It forms a equilibrium changing between aqueous and gaseous form. This makes it impossible to tell how many molecules are in water.
What kind of bonding does water make?
Water is composed of molecular bonds, but forms hydrogen bonds with other water molecules. Hydrogen bonds are not actual bonds, but they cause an attraction between the water molecules, which is why water is adhesive.
Which of these events happens first in Earth's polar regions A Denser water sinks B Water travels as a deep current C Water molecules move closer together D Cold air chills water molecules?
In polar regions of Earth, FIRST, cold air chills the water molecules.
What is the type of bond that forms between water molecules and contributes to cohesion?
Hydrogen bonding is the type of bond that forms between water molecules and contributes to cohesion. It occurs between the hydrogen atom of one water molecule and the oxygen atom of another water molecule.
Why does a concave meniscus form when water is in a graduated cylinder?
A concave meniscus forms in a graduated cylinder with water due to adhesive forces between the water molecules and the walls of the cylinder. This causes the water to cling to the walls, resulting in a concave shape.
Describe an example of cohesion and adhesion that you might observe during your daily life?
An example of cohesion is when water forms droplets on a leaf due to the attraction between water molecules. An example of adhesion is water sticking to the sides of a glass due to the attraction between water molecules and the glass molecules.
