Q: Give an example of Interhalogen Compounds?
A: Compounds containing two distinct forms of halogens (fluorine, chloride, bromide, iodine or…
Q: The hydration reaction involving dicalcium silicate is as follows: 2CaO-SiO2 + 3H2O = 2CaO-SiO2-3H2O…
A: Given : Mass of 2CaO-SiO2-3H2O to be produced = 3000 Kg = 3 X 106 g…
Q: Assume that you have these materials: a) Li (s); b) Br2 (l); Ge (s) and d) Si(s). Choose the best…
A: For a good electrical conductor, material should have free electron to move.
Q: Why does sodium fluoride have a melting point of 993°C but nitrogen has a melting point of -210°C?
A: Please find your solution below : Melting point of any substance is defined as the temperature at…
Q: What mass of silver oxide, Ag2I, is required to produce 25g of silver sulfadiazine, AgC10H9N4SO2,…
A: Molecular mass of any compound is sum of atomic masses of all the elements present in that compound…
Q: Which of the following statements are true?(a) Both nitrogen and phosphorus can form a…
A: a) Both nitrogen and phosphorus can not form a pentafluoride compound. Nitrogen can not form…
Q: to
A: The compound FeCaSi2O6 have a polymer unit called Si2O6⁴- . This unit is called inosilicate.
Q: Give some examples of Silicates?
A: Examples of silicates: Quartz, feldspar, mica, amphibole, pyroxene, and olivine. Silica tetrahedra.
Q: Give some examples of Metallic hydrides?
A: The examples of metallic hydrides has to be given.
Q: What mass of silver oxide, Ag2O, is required to produce 25.0 g of silver sulfadiazine, AgC10H9N4SO2,…
A: Mass of silver sulfadiazine = 25 g Molar mass of silver sulfadiazine = 357.14 g/mol Moles of silver…
Q: What is the difference between silicon and silicone?
A: Silicon * Silicon is a naturally occurring chemical element. * It acts as metalloid that is it…
Q: Why does aluminum, which has less mass than magnesium, produce approximately the same amount of…
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: What mass of gallium oxide Ga2O3 can be prepared from 29.0 g of gallium metal?
A: Molar mass of Ga = 69.7 g/mol
Q: Distinguish among the substances silicon, silica, and silicon?
A: Silicon , Silica and Silicone has to be distinguished.
Q: Some scientists have suggested that life on other planets in the universe may be based on silicon…
A: Given: Some scientists have suggested that life on other planets in the universe may be based on…
Q: Fertilizers commonly contain compounds of which element? a) nitrogen b) aluminum c) fluorine d)…
A: Fertilizers are the chemical substances that provides to the crops or plants to increase their…
Q: 7. How many moles of white phosphorus (P4) fluoroapatite? can you produce from 1 ton of
A: The number of moles of a compound can be determined by the balanced chemical reaction. A reaction…
Q: Distinguish among the substances silicon, silica, and silicone.
A: Semiconductors composed of group 14 elements having 4 electrons. These elements combine with many…
Q: Explain the following in terms of structure and Magnesium has a higher melting temperature than…
A: The electronic configuration of Sodium ( 11Na ) - 1s2, 2s2,2p6,3s1 Magnesium (12Mg) -1s2,…
Q: 3. Describe the classification of nanomaterial based on their origin.
A: Please find below the complete classification tree of nano-particles.
Q: Describe the oxidising action of potassium dichromate and write the ionic equations for its reaction…
A: As, Potassium dichromate is powerful oxidising agent in acidic medium. And in Presence of dilute…
Q: Give the molecular shape around the boron atom in BCl 3 and the nitrogen atom in NCl 3 and explain…
A: The molecular shape around the boron atom in BCl 3 and the nitrogen atom in NCl3 has to be given,
Q: Nearly every compound of silicon has the element in the +4 oxidation state. In contrast, most…
A: Elements of a particular group shows similarities in physical and chemical properties. But there…
Q: What are the two most abundant elements by mass in the earth’s crust, oceans, and atmosphere? Does…
A: The main composition of amino acid is carbon, oxygen, hydrogen, and nitrogen. Since Earth's crust…
Q: Draw a Lewis structure for(a) The cyclic silicate ion Si₄O₁₂⁸⁻(b) A cyclic hydrocarbon with formula…
A:
Q: Explain why CO 2 is a gas at room temperature but H 2O is a liquid
A: There are three states of matter: Solid state Liquid state Gaseous state Non-polar covalent…
Q: Does the metallic characteristic of a main-group element increase or decrease as we move down a…
A: The metallic characteristics of a main-group element increases as we move down a family because the…
Q: Do you expect fluorine to be the strongest or weakest oxidizer among the halogen family? Which halid…
A:
Q: What is the balanced chemical equation for the reaction that occurs when magnesium metal is added to…
A: Given Reactant = Mg , HCl Balanced chemical Equation = ?
Q: If a silicon is replaced by an aluminum in a silicon oxide structure, how is charge neutrality…
A: Charge neutrality: When any species does not contain any charge then it is considered as neutral.…
Q: What are the two most abundant elements by mass in the earth's crust, oceans, and atmosphere? Does…
A: In atmosphere, Nitrogen and oxygen are most abundant elements as N2 gas compared of 78 % and 21 % O2…
Q: Carbon forms the CO32− ion, yet silicon does not form an analogous SiO32− ion. Why?
A: Why does silicon not form analogous SiO32- ion of CO32- ions formed by carbon has to be given below.…
Q: A sample of soda-lime glass for tableware is analyzed and found to contain the following percentages…
A: Given- % by mass of oxides SiO2 = 72.4% Na2O =18.1% CaO = 8.1% Al2O3 =1.0% MgO = 0.2% BaO = 0.2%…
Q: Which is a metal alloy? O Steel O Diamond O Glasses O Limestone
A:
Q: How many grams of gaseous ammonia will the reaction of 3.0 g hydrogen gas and 3.0 g of nitrogen gas…
A: The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical…
Q: 2. Explain the shape of diamond and explain why it's such a strong crystal.
A: Diamond is the hardest substance on Earth and it is used in making tools for grinding, cutting,…
Q: Why the radius of Fe+2 is greater than Fe+3?
A: The distance from the nucleus to the outer most shell of an atom is called as the atomic radius. As…
Q: Q.5(a) The alkali metals follow the noble gases in their atomic structure. What properties of these…
A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…
Q: hydrogen is the building block of all other elements
A: Hydrogen is the atom having 1 electron and 1 proton and 0 neutron it has only one shell "s". it has…
Q: Would you expect potassium perchlorate, KClO4(aq), in a concentrated acidic solution to act as an…
A: In Redox chemistry reductant is the species that donates e- to an electron receiver. Thus reducing…
Q: Heating a sample of Na2CO3⋅xH2O weighing 4.640 g until the removal of the water of hydration leaves…
A: A sample of Na2CO3.xH2O weighing 4.640 g is heated until the removal of water of hydration leaves of…
Q: How could you separate tellurium dioxide, TeO2 from SiO2
A: The method to separate tellurium dioxide, TeO2 from SiO2 is to be explained.
Q: 9. Assume that you have these materials: a) Li (s); b) Br2 (1); Ge (s) and d) Si(s). Choose the best…
A: Metals are good conductors because of presence of free electrons.
Q: Which of the following group 14 elements has lowest tendency to catenation? Select one: a. Lead b.…
A: Since you have posted multiple questions, we will solve only first question for you. If you want the…
Q: The table below lists some properties of three carbon allotropes. Explain, from a molecular…
A:
Q: 2. For each of the following pairs of substances, predict which member of the pair will have the…
A: Substance which has high forces of attraction between the atoms/molecules/ions has high melting…
Q: What is the ratio of mass of oxygen in H2O and H2O2?
A: Standard data: The molar mass of oxygen atom = 15.999 u
Q: What is the composition, in atom percent, of an alloy that contains 98 g tin and 65 g of lead?
A:
Nitrogen is found in nature as N2(g). Would you expect phosphorus to be found in
nature as P2(g)? Explain.
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- Why do scientists believe that hydrogen is the building block of all other elements? Why do scientists believe that helium 4 is the building block of the heavier elements?Carbon forms the CO32− ion, yet silicon does not form an analogous SiO32− ion. Why?You are told by your instructor to go to the stock room and find a bottle of the chemical K3Cl.Does such a compound exist? Explain
- Give TWO reasons why aluminium metal was not commonly used till last century, even though it is one of the most common elements on earth. (b) Why are copper and lithium such important elements today?Cr(s) + O2(g)→ Cr,O3(s)Testosterone is an anabolic steroid. The structure of testosterone is shown below. What is the idealised bond angle at the indicated atom (ii) ? Hint: atom (iv) has been completed for you as an example. (iv) bond angle: 109.5°, geometry of the electron pairs: tetrahedral, shape of the bonds: tetrahedral ·····|||I H ····||||I ii iv
- 4. The common oxidation number for an alkaline earth metal is +2. (a) Using the Born-Mayer equation (for determining the lattice enthalpy) and a Born-Haber cycle (draw it), show that CaCl is an exothermic compound (negative AHf). Make a reasonable prediction to estimate the ionic radius of Ca (explain your reasoning). The sublimation (atomization) enthalpy for Ca(s) is 178 kJ/mol. (b) Show that an explanation for the non-existence of CaCl can be found in the enthalpy change for the reaction below. The AHf for CaCl2(s) is -190.2 kcal/mol. 2 CaCl(s) → Ca(s) + CaCl2(s)Consider the reaction: CH 4( g) + 2O 2( g) → CO 2( g) + 2H 2O( g) Which of the following statements is correct? Oxygen is the reducing agent. The reaction is not an oxidation-reduction reaction. Oxygen is oxidized. Carbon is oxidized. Carbon is the oxidizing agent.Part A) Draw the Lewis dot structure for SiO44−. Use square brackets to denote the overall charge. Part B) Draw the Lewis dot structures for two connected SiO4 tetrahedra. (Hint: Look at it as O3Si−O−SiO3^6−.)
- Iodine monochloride and elemental bromine have nearly the same molar mass and liquid density but very different boiling points.(a) What molecular property is primarily responsible for this difference in boiling point? What atomic property gives rise to it? Explain.(b) Which substance has a higher boiling point? Why?Consider the elements Li, K, Cl, C, Ne, and Ar. From this list, select the element that (a) is most electronegative, (b) has the greatest metallic character, (c) most readily forms a positive ion, (d) has the smallest atomic radius, (e) forms p bonds most readily, (f) has multiple allotropes.(a) List four physical characteristics of a solid metal. (b) List two chemical characteristics of a metallic element.