What accounts for water's properties of adhesion and cohesion? The polar nature of water and the effects of hydrogen bonding
Adhesion is the tendency of dissimilar particles to cling to one another. While the cohesion is the grammatical and lexical linking within a sentence that holds the text together and gives the meaning. Cohesive forces are the intermolecular forces which cause a tendency in liquids to resist separation. The example of intermolecular forces are hydrogen bonding and Van der Waals forces. The differences between adhesion and cohesion are in adhesion, the molecules of different substances stick together and in cohesion, the molecules stick to each other
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance. There are five main properties of water such as:
What accounts for water's properties of adhesion and cohesion is the polar nature of water and the effects of hydrogen bonding
Grade: 9
Subject: biology
Chapter: water's properties
Keywords: water's properties, adhesion, cohesion, water, accounts
The bonding between the hydrogen atom and the polar nature of the water account for adhesion and cohesion characteristics of water.
Further Explanation:
The water molecules have two hydrogen atoms attached to an oxygen atom by a polar covalent bond. Carbon has an electronegativity of 2.55, which is very close to the electronegativity of hydrogen (2.20). Water is a good solvent because it is a polar molecule (polarity of a molecule is the separation of electric charge result to a molecule consisting of an “electric dipole moment” through a positively charged end and negatively charged end). The oxygen atom in the water molecule is more electronegative (tendency to attract electrons, as they are electron deficient.), while hydrogen molecule is electropositive as compared to the oxygen.
Due to this electronegativity difference, the shared pair of electrons is prominently pulled towards the oxygen atom, giving the atom a partially negative charge, and the hydrogen atoms a partially positive charge. The polarity of water is accountable for the “cohesion and adhesion” characteristics of water.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Water
Keywords:
Water, electronegative, oxygen, atom, negative charge, carbon, electron, tendency, hydrogen, positive charge, polar covalent bond.
separation by density
separation by particle size
filtration
distillation
distillation.......................................
Explanation:
These sugars are transported across the plant by the phloem, a mechanism known as translocation. Sinks are sugar distribution points such as roots, young shoots, and developing plants. The product of photosynthesis is transported from source of production to the storage organs through Phloem
Answer:
harvest fast-growing trees, impose fishing limits, and impose laws to prevent poaching and illegal hunting
Explanation:
i got it right
b. False
The correct answer is; b. False
A hormone is not an organ. Hormones are chemical substances that are produced in the endocrine glands in the body. Hormones act as special messengers by controlling almost all bodily functions such as hunger, reproduction, emotions and mood. Examples of hormones and their major function are insulin (metabolic hormone), estrogen (sex hormone), adrenalin (stress hormone), ghrelin (hunger hormone), leptin (satiety hormone), melatonin (sleep hormone), testosterone (sex hormone) and thyroid (growth hormone).
Answer:
The answer is B.
Explanation:
A hormone is a chemical substance produced and released by endocrine glands to help regulate bodily functions.
-Just took the quiz on edge
The statement 'Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat' is True because ATP (Adenosine Triphosphate) is the main molecule used for energy storage in cells, and the process of creating ATP from other molecules does result in some energy being lost in the form of heat.
This is due to the law of conservation of energy, which states that energy can be transferred and transformed, but cannot be created or destroyed.
Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat. This is because the production of ATP is not a 100% efficient process and some energy is always lost as heat during the conversion of energy from one form to another.
This is in accordance with the second law of thermodynamics which states that in any energy transfer or transformation, some energy is always lost as heat.
Therefore, the production of ATP is always accompanied by the release of some energy as heat into the surroundings.
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Answer: True.
Some ATP produced by chemical reaction is lost into the surroundings as heat