Basic Food Chemistry: Water
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Questions and Answers

What is the main function of water in food?

Water affects the texture of the food, modifies food processing techniques, acts as a solvent or dispersing medium for chemical reactions/enzyme catalysis, and influences the structure, appearance, and taste of foods.

How does water influence the structure, appearance, and taste of foods?

Water in the proper amount, location, and orientation influences the structure, appearance, and taste of foods.

What are the different forms in which water exists in food?

Water in food exists as free liquid in the substance, as hydrates, imbibed in gel, and by absorption on surfaces of solid.

What are the bonds that hold water molecules together?

<p>Water contains strong covalent bonds that hold 2 hydrogen atoms and 1 oxygen atom together.</p> Signup and view all the answers

What type of bond exists between oxygen and hydrogen in a water molecule?

<p>Covalent bond</p> Signup and view all the answers

What term describes the measure of how strong an atom attracts electrons in a chemical bond?

<p>Electronegativity</p> Signup and view all the answers

What is the most important property of water that is based on its unique structure?

<p>Ability to form hydrogen bonds</p> Signup and view all the answers

What type of bond is a hydrogen bond?

<p>Weak bond between polar compounds</p> Signup and view all the answers

What is the term used to describe a molecule with a clear division of opposite electrical charges?

<p>Polar molecule</p> Signup and view all the answers

How many hydrogen bonds can each water molecule form?

<p>Four</p> Signup and view all the answers

What do non-polar substances lack?

<p>Charged ends</p> Signup and view all the answers

What type of atom attracts electrons in a chemical bond?

<p>Electronegative atom</p> Signup and view all the answers

What is the basis for the unique properties of water?

<p>The structure of water and its ability to form hydrogen bonds</p> Signup and view all the answers

What are hydrogen bonds weaker than?

<p>Other chemical bonds such as covalent or ionic bonds</p> Signup and view all the answers

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