Describe the PHYSICAL PROPERTIES of the following Specifically, what type of matter is this? (e.g. halogen) substances (а) Potassium dichromate (Б) Glucose (C6H12O6) (c) Magnesium
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- An element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid? (c) By using asourcebook such as the CRC Handbook of Chemistry and Physics,try to determine the identity of element X.What are the basic units-single atoms, molecules, or for- mula units-that compose each substance? (a) BaBr2 (b) Ne (c) I2 (d) COAn element X reacts with oxygen to form XO2 and with chlorineto form XCl4. XO2 is a white solid that melts at high temperatures(above 1000 °C). Under usual conditions, XCl4 is acolorless liquid with a boiling point of 58 °C. (a) XCl4 reactswith water to form XO2 and another product. What is thelikely identity of the other product? (b) Do you think thatelement X is a metal, nonmetal, or metalloid?
- Which of the following pairs react to form ioniccom-pounds: (a) Cl and Br; (b) Na and Br; (c) P and Se; (d) H and Ba?.QUESTION 1)Describe the PHYSICAL PROPERTIES of the followingsubstances? 2)Specifically, what type ofmatter is this? (e.g. halogen) (a) Potassium dichromate(b) Glucose (C6H12O6)(c) Magnesium(d) Bromine, Br2(e) NiSO4·6H2O(f) Sulfur(g) Iodine, I2(h) PbI2(i) Copper(j) Stainless steel(k) Ethanol, C2H5OH(l) Zinc(m) Hydrochloric acid(n) Aluminum(o) IceChlorine reacts with oxygen to form Cl2O7. (a) What is the name of this product (see Table 2.6)? (b) Write a balanced equation for the formation of Cl2O7(l) from the elements. (c) Under usual conditions, Cl2O7 is a colorless liquid with a boiling point of 81℃. Is this boiling point expected or surprising? (d) Would you expect Cl2O7 to be more reactive toward H+(aq) or OH− (aq)? Explain. (e) If the oxygen in Cl2O7 is considered to have the -2 oxidation state, what is the oxidation state of the Cl? What is the electron configuration of Cl in this oxidation state?
- A gaseous binary compound has a vapor density that is 1.94 times that of oxygen at the same temperature and pressure. When 1.39 g of the gas is burned in an excess of oxygen, 1.21 g water is formed, removing all the hydrogen originally present.(a) Estimate the molecular mass of the gaseous compound.(b) How many hydrogen atoms are there in a molecule ofthe compound?(c) What is the maximum possible value of the atomicmass of the second element in the compound?(d) Are other values possible for the atomic mass of thesecond element? Use a table of atomic masses to identify the element that best fits the data.(e) What is the molecular formula of the compound?Name the following binary ionic compounds. (a) MgF2 (b) Bal2 (c) FeCl2(c) Argon d) Fluorine 6. The number of nonmetal atoms in Al2(SO4)3 (a) 2 15 (b) (c) 12 (d) 8 7. Which of the following properties of water is not a (a) Water normally boils at 100°C
- Phosphorus trichloride is important in the manufacture of insecticides, fuel additives, and flame retardants. Phosphorushas only one naturally occurring isotope, ³¹P, whereas chlorinehas two, ³⁵Cl (75%) and ³⁷Cl (25%). (a) What different molecu-lar masses (amu) can be found for PCl₃? (b) Which is the mostabundant? (c) What is the ratio of the effusion rates of the heavi-est and the lightest PCl₃ molecules?Write the chemical formulas for the following compounds:(a) Silver cyanide(b) Calcium hypochlorite(c) Potassium chromate(d) Gallium oxide(e) Potassium superoxide(f) Barium hydrogen carbonate(a) Determine the number of sodium ions in the chemicalformula of albite, NaxAlSi3O8. (b) Determine the numberof hydroxide ions in the chemical formula of tremolite,Ca2Mg5(Si4O11)2(OH)x.