Describe how hydrogen bonding occurs between water molecules‚ and relate this and other properties of water‚ to the roles of water in living organisms. Water is a very small molecule‚ consisting of two hydrogen atoms covalently bonded to an oxygen atom. However the electrons shared are not done so equally‚ oxygen is more electronegative and has a firmer hold on the electrons and pulls them slightly towards its nucleus. Due to this‚ the charge across the molecule of water is not equally distributed
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properties. With two hydrogen atoms sticking to an oxygen atom in a tetrahedron shape‚ water is considered as a polar molecule. Because oxygen is very electronegative‚ it pulls hydrogen’s electrons towards it‚ causing oxygen to become partial negative. The hydrogen atoms then will have fewer electrons towards its own nucleus‚ therefore making it partial positive. Since positive charge and negative charge attracts each other‚ the molecular formation of H2O will result hydrogen bonding. Each water
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GROUP B MODEL ANSWER Yoshida et al.‚ Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor‚ Symmetry 2012‚ 4‚ 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 M3H(XO4)2 compounds are used for electrolytic fuel cells (where M=K‚ Rb ‚Cs; X=S‚ Se). At different temperatures‚ the compound exhibits different degrees of symmetry. There are 3 distinct phases observed. Below 369K‚ the phase 3 structure belongs
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Chemistry- 1. It is a science that deals with the study of Carbon compounds but not all compounds containing under organic compounds. Non-Organic Compounds a. CO- Carbon monoxide b. CO2- Carbon dioxide c. CO3- Carbonates d. HCO3- Hydrogen carbonates e. CN- -Cyanides 2. There are over millions of compounds and inorganic is approximately 100‚000. 3. A science that deals with matter obtained from natural or living sources. 4. Study of Carbon Compounds. 5. According to a combustion
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Elements If God has any favorite elements‚ they must be Hydrogen‚ Carbon‚ Nitrogen and Oxygen. These four elements make up the majority of all Biological compounds. Without them‚ life on this planet as we know it could not exist. Due to the bonding possibilities between and among these elements‚ literally millions of organic compounds are possible. Carbon is the backbone of all organic compounds. It forms the main structure of the molecule with Hydrogen‚ Nitrogen‚ Oxygen and occasionally other elements
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The molecular structure of water is bent triatomic. A bent triatomic structure occurs when the two unshared pairs of electrons in water repel each other as well as the two O-H bonds‚ which also repel each other to assume a bent triatomic shape. Water occurs in three of the four states of matter‚ liquid‚ solid‚ and gas. The molecules in solid water are attracted insubstantially to each other. The molecules are organized in a crystalline structure. The energy of ice molecules is not very abundant.
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rain? Acid rain is the term for pollution caused ... of one oxygen atom and two hydrogen atoms. The oxygen atom also called the "apex of the water molecule" bears a slight electronegative charge while hydrogen possesses a more positive one (Kirk 225). Because of the opposite charges attract‚ the water molecules are drawn together. When an oxygen atom is linked to a molecule’s hydrogen atom‚ a bond called a hydrogen bond is formed (Kirk 256). There are several types of water molecule such as liquid
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and by the strength of the forces of attraction between the atoms‚ ions‚ or molecules. C4.4: Molecular Polarity The forces between molecules depend on the net polarity of the molecule as determined by shape of the molecule and the polarity of the bonds. C5.4: Phase/Change Diagrams Changes of state require a transfer of energy. Water has unusually high-energy changes associated with its changes of state. Content Expectations: C2.1c: Compare qualitatively the energy changes associated with melting
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Week 2 Quiz Which of these is NOT one of the four general categories of cells that make up the human body? collagen cells muscle cell neuron connective tissue cell epithelial cells What is the term for the developmental process that leads to specialized cell types? homeostasis differentiation positive feedback genomics acclimatization If a person begins to sweat upon entering a hot room but continued sweating is able to keep the body temperature constant‚ which of these best
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polarity of water molecules results in hydrogen bonding. A hydrogen bond forms when the oxygen of one water molecule is electrically attracted to the hydrogen of a close molecule. Hydrogen bonding between water molecules is the basis for water’s unusual properties. Organisms depend on the cohesion of water molecules. Hydrogen bonding makes water molecules stick to each other‚ and this cohesion helps pull water upward in the microscopic vessels of plants. Hydrogen bonding is also responsible for water’s
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