Consider Copper (Cu), Silver (Ag), Silicon (Si), Aluminum oxide (Al2O3), silicon carbide (SiC), and polyvinyl chloride (PVC). Please select the correct answers. (There may be more than 1 correct answer!).

Q: Describe the hydrometallurgy process?

A: SOLUTION: Step 1: The method of metal extraction from the ore involving an aqueous solution of salt…

Q: (a) If the effective mass of the electron is 0.17 me and the dielectric constant of Ge is 16, find…

A: We have to find radius of the first Bohr orbit of the electron.

Q: Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one…

A: Two main reasons that elaborate the uncommon use of aluminum in the last century can be listed as…

Q: 3. Hydrochloric acid is a strong acid that can be used to make sodium chloride and a weak acid,…

A:

Q: Determine the number of bonding electrons and the number of nonbonding electrons in the structure of…

A: The structure of silicon dioxide is drawn as,

Q: (optional) Blue turquoise is an example of a hydrate mineral containing copper; the chemical formula…

A: Mass percentage of any component may be calculated as, Mass percentage = mass of the component total…

Q: Write the balanced net ionic equation for the reaction of hydrogen sulfide (H2S) with bromate ions,…

A: To solve the problem of writing the balanced net ionic equation for the reaction of hydrogen sulfide…

Q: The three most well-known minerals of tourmaline are: Elbaite…

A:

Q: Aspartame, C₁4H18N2O5, is a solid used as an artificial sweetener. Write the balanced equation for…

A: •Here given compound is"Aspartame". •Formula of Aspartame is C14H18N2O5. •We are writing here…

Q: en stat jv) a hydride which in water gives a dibasic acid

A: Answer for Q4 part (iv) The term dibasic acid is commonly referred to any substance that can donate…

Q: Uranium can be isolated from its ores by dissolving it as UO2(NO3)2, then separating it as solid…

A: The balanced chemical equation is as follows,

Q: How much aluminum can be produced from 1.50 ton of Al2O3?

A: The molar mass of aluminum is = 26.981539The molar mass of oxygen is = 15.999 g/molThe molar mass of…

Q: In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant…

A: Given, mass of copper (II) nitrate hydrate is 34.8243g and when heated the mass is 27.0351g.

Q: what are the most common minerals found in soils are combinations of which four elements, which are…

A:

Q: Are polymers today becoming more sophisticated in structure?

A: Polymers are the macromolecules that are formed by the repeated units of monomers.

Q: Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g.…

A: Hello. Since the question consists of multiple sub-parts, the first three sub-parts shall be only…

Q: Calcium carbide, CaC2, reacts with water to form acetylene, C2H2, and calcium hydroxide. Write a…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: Bacterial digestion is an economical method of sewage treatment. The reaction is an intermediate…

A:

Q: What is the VSEPR geometrical shape of the silicate ion, SiO32- ?

A:

Q: Discuss the nature of bonds in NaCl and diamond. What do you mean by directionality of covalent…

A: Ionic bonds are formed when the atoms transfer electrons among each other leading to formation of…

Q: Aluminum metal is produced by heating aluminum oxide, Al₂O3(s), and other substances to almost 1000…

A:

Q: The use of silica to form slag in the production of phospho-rus from phosphate rock was introduced…

A: Silica is the name given to a group of minerals composed of silicon and oxygen and these two are the…

Q: Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the…

A: To calculate the moles of alum formed from the given number of moles of each reagent, we would use…

Q: A student decides to conduct an experiment by using two different flasks and two different gas…

A: Average kinetic energy and rms velocity calculation:

Q: Describe what happens on the molecular level when silica is heated and then cooled to make glass.

A: The general formula of silica is SiO2 which melts on heating above 1500oC.

Q: Tourmaline is the most colorful of all gemstones. It neutralizes negative forces and offers…

A: Mole of a substance is that quantity that contain 6.022 x 1023 units of that substance. It is also…

Q: Upon heating 144 g MgSO4 · 7 H2O: (a) how many grams of water can be obtained? (b) how many grams…

A: Given :- mass of MgSO4 · 7 H2O = 144 g  To be calculated :- mass of H2O (in g)  mass of anhydrous…

Q: Silica is utilized in part to make the CPU chip in a computer.

A:

Q: Phosphoric acid, one of the acids used in some cola drinks, is produced by the reaction of…

A: a) The given compound is phosphorous (V) oxide. This suggests that the oxidation state of…

Q: d) Suggest a reason for 5. a) Explain the term periodic trend when applied to trends in the periodic…

A: Periodic patterns, which arise from the periodic table's arrangement, provide chemists with a…

Q: Marble is composed primarily

A: CaCO3 is an ionic compound thus it gives ions when dissolved in water. Dissociation is as: Ksp…

Q: The molecular weight of sperm whale myoglobin is 17.8 kDa.17.8 kDa. The myoglobin content of sperm…

A: Molar mass of a given chemical compound is calculated by the addition of standard atomic masses of…

Q: Write the balanced chemical equation for the fermentation of sucrose (C12H22O11) by yeasts in which…

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…

Q: Answer the following questions

A: An aluminum wire have a 1.5 times larger cross section to pass the same current as a copper wire,…

Q: From its phase diagram, why do you think CO2 is called dry ice

A: Triple point of a substance can be defined as the temperature and pressure at which three phases of…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.