(a)
Interpretation: The physical property, melts at
Concept Introduction: The property that identifies only the form of a chemical substance and the chemical composition remains the same is said to be physical property. The property that described the ability of a substance to undergo chemical change is said to chemical property.
(b)
Interpretation: The physical property, insoluble in water should be matched to hexane,
Concept Introduction: The property that identifies only the form of a chemical substance and the chemical composition remains the same is said to be physical property. The property that described the ability of a substance to undergo chemical change is said to chemical property.
(c)
Interpretation: The chemical property, does not burn in air should be matched to hexane,
Concept Introduction: The property that identifies only the form of a chemical substance and the chemical composition remains the same is said to be physical property. The property that described the ability of a substance to undergo chemical change is said to chemical property.
(d)
Interpretation: The physical property, is a liquid at room temperatureshould be matched to hexane,
Concept Introduction: The property that identifies only the form of a chemical substance and the chemical composition remains the same is said to be physical property. The property that described the ability of a substance to undergo chemical change is said to chemical property.
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Basic Chemistry
- Consider this list of substances: H2O, Ni, KI, CH4. Match these substances with the properties below. Question 9 options: Conducts electricity as a solution in water Consists of a molecule with a tetrahedral electron pair geometry Conducts electricity in the solid state Can undergo hydrogen bonding with water . H2O . Ni . KI . CH4arrow_forwardUse numbers to order the substances by increasing boiling point. Let #1 be the substance with the LOWEST boiling point and #3 be the substance with the HIGHEST boiling point. Hydrogen Sulfide, H2S Methane, CH4 Carbon Dioxide, CO2 o=c=ö H.arrow_forward4. Water is less dense as a solid than as a liquid. A. Why can solid ice float on liquid water? B. When a lake freezes, how does the density of water prevent all of the living organisms in the lake from freezing as well? OEL r TE OT 1arrow_forward
- 5. Calculate the amount of energy given off when 13g of water at 51° C freezes to ice at 0°C. Did a phase change occur? If so, which one? Is this endothermic or exothermic?arrow_forwardMacmillan Learning A: the chemical formulas for the two compounds. OH A B: Based on their structures, which compound will have the higher boiling point? Barrow_forwardHow much heat in kilocalories is absorbed when 22.0 g of 2-propanol evaporates after being rubbed on the skin? The heat of vaporization of 2-propanol is 159 cal/g.arrow_forward
- In which substance are the electrostatic forces between molecules the strongest? propane glycerin turpentine acetonearrow_forwardThere are five pure substances. The molecular component is shown per substance. Based on this information, answer items 56 to 65. Substance Molecular Component Substance Molecular Component O Substance A Substance D Substance B Substance E Substance C OH 56. The physical properties of the substances are influenced by intermolecular forces of attraction. Which substance(s) are predominantly influenced by the intermolecular association of the molecules via hydrogen bonding? A. Substance A only B. Substance A and C C. Substance A, B, and C D. Substance A, B, C, and D 57. Which substance is expected to turn blue litmus paper into red color? A. Substance A B. Substance B C. Substance C D. Substance D OH Harrow_forwardHow much heat would your body lose if you were to ingest 800 g of snow at 0 °C to quench thirst? (The amount of heat necessary to melt snow is 6.01 kJ/mol). Density of water: 1 g/mL Specific heat of water: 4.184 J/g. °C H2O= 18.02 g/molarrow_forward
- Explain in terms of forces between structural units why (a) HI has a higher boiling point than HBr. (b) GeH4 has a higher boiling point than SiH4. (c) H2O2 has a higher melting point than C3H8. (d) NaCl has a higher boiling point than CH3OH.arrow_forwardWhich of the following substances possess an internal structure of its constituent molecules that contain almost no empty space but allow freedom of movement? O Liquid alcohol (CH;CH2OH) O Vaporized alcohol (CH;CH2OH) O Carbon dioxide gas Solid carbon dioxide (as dry ice)arrow_forward25Which of the following statements is wrong about water: a. Water has a unique ability to dissolve many organic and inorganic compounds. O b. Water expands when it freezes. This is related to the crystal structure of ice. O. Virtually no water is pure; it can only be made in a laboratory. d. 80 elements have been detected in seawater. Chlorine, sodium, magneslum and boron are commercially extracted from sea water. O e. f. None of the above Previous pagearrow_forward
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