Lewis base is a substance that dissolved in water increases hydrogen ion concentration.
This is a chemical substance which is slippery to touch and reacts with acids to form salt.
A lewis base is capable of donating its lone pair of electrons thereby resulting in its ability to increases hydrogen ion concentration when in water.
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A Lewis base is a substance that donates electrons to form a covalent bond. Therefore, option B is correct.
A Lewis base is a type of molecule or ion that has a pair of electrons. It can donate electrons to another atom or molecule to form a chemical bond. The concept of Lewis bases was introduced by the American chemist Gilbert N. Lewis in 1923, as part of his theory of chemical bonding.
In a Lewis acid-base reaction, the Lewis base (electron-pair donor) reacts with a Lewis acid (electron-pair acceptor) to form a new compound. Lewis bases are important in many chemical reactions, including acid-base reactions, coordination complexes, and redox reactions. Examples of Lewis bases include ammonia (NH3), water (H2O), and chloride ions (Cl-). Therefore, option B is correct.
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B The oxygen in the air forms ozone in presence of UV rays
C Dust and soot particles being suspended in the air
D Sulphur dioxide being released in the air
the answer is B not A
let me explain why see a says water vapor in the air turns to liquid water in the form of rain see that is a physical change not a chemical change it is B because it is undergoing a chemical change by the uv rays for that reason it is not D because that is just releasing sulfur dioxide in the air that is not a chemical change nor a physical change so then i leaves us with C so C is wrong because it just being suspended in the air not physical or chemical change
can i also have brainlyest i never had it before
adaptation
natural selection
No, most elements on the periodic table are not nonmetals. About 75% of the elements on the periodic table are metals, with nonmetals including the Noble Gases, Halogens, Nitrogen and Oxygen making up a smaller portion. Additionally, the Metalliods, which are elements with properties of both metals and nonmetals, also hold a place on the periodic table.
No, most elements on the periodic table are not nonmetals, but rather metals. The periodic table is primarily comprised of metals, with the so-called 'metal' elements making up about 75% of the table's total elements. Nonmetals count for only a small part, located on the right side of the table. They include the Noble Gases, the Halogens, and some others like Nitrogen and Oxygen
Furthermore, there are a group of elements known as the Metalliods or Semi-Metals which have properties in between metals and nonmetals. These are located in a diagonal line from Boron to Astatine.
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What are the sides of the DNA ladder made of?
The sides of the DNA ladder are made of alternating deoxyribose sugar molecules and phosphate groups.
The DNA molecule has a double helix structure, resembling a twisted ladder. The sides, or rails, of this ladder are composed of two long chains of nucleotides running in opposite directions. Each nucleotide consists of three components: a deoxyribose sugar molecule, a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). The deoxyribose sugar molecules and phosphate groups alternate to form the backbone of the DNA strand. The phosphate groups link the sugar molecules together through covalent bonds, creating a strong and stable structure.
The nitrogenous bases, which include adenine (A), thymine (T), cytosine (C), and guanine (G), project inward from the sugar-phosphate backbone and form complementary base pairs (A with T and C with G) between the two DNA strands. These base pairs are held together by hydrogen bonds, which provide the specificity and complementarity necessary for DNA replication and information storage. This elegant molecular architecture allows DNA to store and transmit genetic information accurately.
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Answer: If erosion did not occur, no rock cycle would happen. It would end up having large amounts of igneous, metamorphic and sedimentary rocks. No finer rocks can be found and no flat lands can be seen.
Explanation: