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Chemistry Questions and Answers (Q&A)

This has to be methane since there is only 1 carbon.

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TeF5 is an ionic structure that results in the formation of a lattice arrangement. The Te is bound to 5 fluorine atoms which are in turn linked to other atoms around them. Hence the entire structure takes the shape of a giant lattice with strong interconnections between separate atoms. This arrangement has a central geometry called the square pyramidal arrangement.

This is because the fluorine atoms occupy 5 positions around the central Te atom. One is above the atom while the other 4 occupy the four corners around the fluorine atom. Hence, the ultimate structure takes the shape of a pyramid.

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The correct answer to this question is A, Fe2(SO4)3 which is the chemical formula. The IUPAC name is iron(III) sulfate, which is determined by the set of rules that provide compounds with their name developed by the International Union of Pure and Applied Chemistry. Fe2(SO4)3 is the formula for this chemical compound.

To determine this: the 3 sulfate ions have a charge of -6 as -2 is multiplied by 3. Thus, to neutralize a -6 charge, a +6 charge is required. Each iron ion has a +3 charge, as 6/2 =3. This is how we derive the name Iron(III) sulfate.

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The correct answer to this question is C, CuS. This is the chemical formula, whereas Copper Suflide is the IUPAC name. The IUPAC name is the set of rules that provide compounds with their name, set by the International Union of Pure and Applied Chemistry. Such names are published in the Nomenclature of Organic Chemistry.

This is a chemical compound of copper and sulfur, in which the metal is in the +2 oxidation state. It is a naturally occuring compound, appearing in nature as a dark indigo blue mineral covellite. In addition, copper sulfide is a moderate conductor of electricity.

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The corticosteroid is also known as a natural hormone that comes from the adrenal cortex. This is a type of hormone that is related to getting good health. There are three classes of this hormone available. These three classes are androgens, glucocorticoids, and mineralocorticoids.

These three have different functions throughout the body. There are times when people are recommended to take an extra dose of these steroids and the usual reason for this is to stop the inflammation that may be felt throughout the body.

Inflammation is usually signed that the white blood cells are trying to stop some foreign objects from getting into the body. This may also be a sign of infection.

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D.CaCl2

Because The valancy of Calcium (Ca) is 2 and Chloride (Cl) is1..

Therefor Ca1Cl2 = CaCl2..........

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The correct answer to this question is C, AI2 (SO4)3. Aluminum Sulfate is a chemical compound, which has a crystal structure. Its' molar mass is 342.15 g/ mol. Aluminum Sulfate is created by adding aluminum hydroxide to sulfuric acid. This is done with the formula: 2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6H2O. It can also be made by using a sulfuirc acide solution to heated aluminum metal. This is done with the formula: 2 Al + 3 H2SO4 → Al2(SO4)3 + 3 H2↑. Aluminum Sulfate has many uses including being an agent in food starch, as well as used in animal feed and deodorant.

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Chemistry is a branch of science that deals with chemicals and their bonds and how different things react together. Like every other subject, it has an importance. However, chemistry may be much more important than other subjects because all other kinds of sciences involve the study of matter and the different interactions between matters.

So, basically, chemistry is at the bottom off the science subjects, hence understanding it is essential to understanding anything in the world of science. This is why it is among the few compulsory subjects that every student has to learn in order to improve their understanding of the things around them.

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In 1928, Sir Alexander Fleming hypothesized that mold growing around the Staphylococcus bacteria he was studying in some of his petri dishes was producing a chemical that killed the bacteria. He designed an experiment to prove his hypothesis. As a result of his experiments, Fleming did indeed prove that a mold produced a bacteria-killing substance. He called the substance “penicillin”. Penicillin was the first antibiotic discovered.

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The correct option is A.

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