Silicon and carbon are both in Group 4 of the Periodic Table. They form the oxidessilicon dioxide (SiO2) and carbon dioxide (CO2). The properties of these two oxidesare shown in the table below:Carbon dioxideSublimes at -78°CSilicon dioxide1610°CPropertyMelting pointBoiling pointElectrical conductivityGive the structures and bonding of carbon dioxide and silicon dioxide.Explain your answersSublimes at -78°C2230°Cрoorрoor Na*b)Use the diagram to explain why ...i) sodium chloride crystals can be cubed shapedii) solid sodium chloride has a high melting pointiii) solid sodium chloride is an insulator but liquid sodium chloride will undergo electrolysis

Carbon and silicon belong to group 4 and have 4 valence electrons in their outermost valence shell.…

Answered: Silicon and carbon are both in Group 4…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Q1 Solid matter held in place by electrostatic attraction forces between positive ions and a "sea" of freely moving electrons describes what type of bonding? ionic covalent metallic hydrogen Q2 A certain mass of nitrogen gas occupies a volume of 1.55 L at a pressure of 5.65 atm. At what pressure will the volume of this sample be 3.93 L? Assume constant temperature and ideal behavior. (?)atm
Consider the element Work (Wr) with an atomic number of 33 and an atomic mass of 81.03 g/mol. The following information was collected for this element Molecule/ Ion Names Wr-2 Workide WrO3-2 Workate WrO2-2 Workite WrO-3 hydroworkite Draw the Lewis structure of the molecule Workous acid and determine its electron geometry and molecular geometry. What is the mass % of work in Calcium hydroworkite.
genow.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take ☆ 司(L Update : e [References] Use the References to access important values if needed for this question. Sodium metal reacts with water to produce hydrogen gas according to the following equation: 2Na(s) + 2H20(1)2NAOH(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 744 mm Hg. If the wet H2 gas formed occupies a volume of 9.27 L, the number of moles of Na reacted was mol. The vapor pressure of water is 17.5 mm Hg at 20 °C. Submit Answer Try Another Version 9 item attempts remaining Previous Next
The compound ICl contains nonpolar covalent bonds. polar covalent bonds with partial positive charges on the Cl atoms. polar covalent bonds with partial positive charges on the I atoms. hydrogen bonds. polar ionic bonds.
This thermodynamic cycle describes the formation of an ionic compound MX from a metal element M and nonmetal element X in their standard states. Based of the table (picture): A. What is the lattice enthalpy of MX2? (in kJ/mol) B. What is the enthalpy of formation of MX2? (in kJ/mol) C. Suppose the electron affinity of X were bigger and the heat of sublimation of M were smaller. Would MX2 be more or less stable? Or would it be impossible to tell without more information?
Answer the questions in the table below about the shape of the phosgene (COCI₂) molecule. How many electron groups are around the central carbon atom? Note: one "electron group" means one lone pair, one single bond, one double bond, or one triple bond. What phrase best describes the arrangement of these electron groups around the central carbon atom? (You may need to use the scrollbar to see all the choices.) 0 (choose one) X Ś
Because carbon and silicon are both elements in group 14 on the periodic table, we expect them to react with other elements in similar ways. To some extent, they do, but in some cases, carbon and silicon compounds that seem to have analogous structures have very different chemical characteristics. For example, carbon tetrachloride, CCl4, is very stable in the presence of water, but silicon tetrachloride, SiCl4, reacts quickly with water. The unbalanced equation for this reaction is SiCl4 + H2O → Si(OH)4 + HCl Balance this equation. Write a conversion factor that could be used to convert between moles of SiCl4 and moles of H2O. How many moles of SiCl4 react with 24 moles of water? Write a conversion factor that could be used to convert between moles of Si(OH)4 and moles of water. How many moles of Si(OH)4 form when 4.01 moles of H2O react with an excess of SiCl4?
In a combustion chamber containing 5 L of carbon monoxide and 2.5L of oxygen is ignited at 298 K and 1 atmosphere pressure. Assuming complete combustion and no loss of gas, what will be the volume of carbon dioxide formed at 298 K and 1 atmosphere pressure?
Which of the following compounds is likely to have the lowest melting point? : C a O MgO S c O Se O
Identify the molecule(s) that exhibit(s) resonance. Ozone phosphorous pentachloride carbonate ion carbon dioxide O iodide ion
Which of the following compounds would most likely have the highest melting point? NaCl NaF CaCl2 Li₂O
Calculate the mass of acid dissolved in 389 mL of 0.725 M hydrofluoric acid. 5.64 g O 5.77 g 10.3 g 5.93 g O 16.5 g Which of the following is the correct Lewis Structure for the SeBr₂ molecule? Se-Br Br -Se- Br Se- Br Br: Br: BrSeBr Br-Se-Br Br Se-Br:

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