BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hydrogen and Nitrogen
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Oxygen and Hydrogen
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Helium and Oxygen
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Hydrogen and Carbon
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Detailed explanation-1: -A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. That’s why water is sometimes referred to as H2O.
Detailed explanation-2: -Water is a chemical compound made up of hydrogen and oxygen combined in the ratio 2:1 by volume or 1:8 by mass (2 g of hydrogen combines with 16 g of oxygen).
Detailed explanation-3: -The chemical formula of water is H2O. The number of elements is two which are hydrogen (H) and oxygen (O).
Detailed explanation-4: -The area around the oxygen is somewhat negative compared to the opposite, hydrogen-containing end of the molecule, which is slightly positive. Opposites attract, so this lopsided charge difference allows bonds to form between the hydrogen and oxygen atoms of adjacent H2O molecules.
Detailed explanation-5: -Water is a compound composed of atoms of two elements, hydrogen and oxygen, bonded together. A molecule of water is composed of two hydrogen atoms (H) and one oxygen atom (O). This relationship is expressed in the chemical formula for water, H2O (Fig. 1.4).