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(a)
Interpretation:
Substance does not react with oxygen at
Concept Introduction:
All kinds of matter are distinguished from one another based on their properties. This is used for description and identification of the matter. Two types of properties are there for matter and they are physical property and chemical property.
If a property of a matter is observed without changing the identity of the substance, then it is a physical property. Some of the common physical properties are melting point, boiling point, color etc. Physical state of the substance may change but not its chemical identity during determination of physical property.
Chemical property of a substance is the one that tells about the substance behavior to undergo or resist change in forming a new substance. Chemical property of a substance is the one that changes the identity of the substance.
(b)
Interpretation:
Substance react explosively with oxygen at
Concept Introduction:
All kinds of matter are distinguished from one another based on their properties. This is used for description and identification of the matter. Two types of properties are there for matter and they are physical property and chemical property.
If a property of a matter is observed without changing the identity of the substance, then it is a physical property. Some of the common physical properties are melting point, boiling point, color etc. Physical state of the substance may change but not its chemical identity during determination of physical property.
Chemical property of a substance is the one that tells about the substance behavior to undergo or resist change in forming a new substance. Chemical property of a substance is the one that changes the identity of the substance.
(c)
Interpretation:
Substance does not melt when heated to
Concept Introduction:
All kinds of matter are distinguished from one another based on their properties. This is used for description and identification of the matter. Two types of properties are there for matter and they are physical property and chemical property.
If a property of a matter is observed without changing the identity of the substance, then it is a physical property. Some of the common physical properties are melting point, boiling point, color etc. Physical state of the substance may change but not its chemical identity during determination of physical property.
Chemical property of a substance is the one that tells about the substance behavior to undergo or resist change in forming a new substance. Chemical property of a substance is the one that changes the identity of the substance.
(d)
Interpretation:
Substance melts at temperature that exceeds
Concept Introduction:
All kinds of matter are distinguished from one another based on their properties. This is used for description and identification of the matter. Two types of properties are there for matter and they are physical property and chemical property.
If a property of a matter is observed without changing the identity of the substance, then it is a physical property. Some of the common physical properties are melting point, boiling point, color etc. Physical state of the substance may change but not its chemical identity during determination of physical property.
Chemical property of a substance is the one that tells about the substance behavior to undergo or resist change in forming a new substance. Chemical property of a substance is the one that changes the identity of the substance.
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Chapter 1 Solutions
General, Organic, and Biological Chemistry
- Which of the following liquid substances exhibit the highest viscosity at 25 ºC? A. H3C−(CH2)4−CH2OH (hexanol) B. H3C−(CH2)3−CH2OH (pentanol) C. H3C−(CH2)4−COOH (hexanoic acid) D. All of the above have equal viscosities.arrow_forwardExplain why snow is not a pure element. What is the composition of snow? Describe its solid phase and interactions between other particles of snow through intermolecular attractions.arrow_forwardAmelia tests several substances in her house to determine their pH values and records the results. Substance pH Lemon juice 2.3 Tap water 6.7 Bleach 12.3 Soapy water 11.7 Can of tomatoes 4.5 Dishwasher detergent 10.9 What do the basic substances have in common? A They are all used in cooking. B They are all used in cleaning products. C They are all clear or transparent. D They are all sour tasting when eaten.arrow_forward
- Notice that the difference between the freezing and boiling point of water is 180 degrees in the TEMPERATURE (°C) symbol (*), followed immediately by either C or F (no spaces). On the Fahrenheit scale: O°F 32°F freezing point of water (equivalent to 0°C) 212°F boiling point of water (equivalent to 100°C) Fahrenheit scale (32°F....212°F) but is 100 degrees in the Celsius scale (0°C..T00 C). As with using the metric system, it is important in the sciences to learn to use and report temperature readings using the Celsius scale since it is more universally used than the Fanrenniore scale. The formulas used to convert between these two temperature scales are listed below. When converting from°F to°C °C= ('F - 32) 1.8 °C=5/9('F - 32) -OR- When converting from°C to°F °F = (°C x 1.8) + 32 °F = (°C x 9/5) + 32 -OR- Use the above equations (either the decimal or fraction form) to complete the following conversions. Space is provided should you wish to write out your work. Place your answer (and…arrow_forwardConsider the data in the table. Compound Melting point (°C) AHfus (kJ/mol) Boiling point (°C) AH yap (kJ/mol) HF -83.11 4.577 19.54 25.18 HCI -114.3 1.991 -84.9 17.53 HBr -86.96 2.406 -67.0 19.27 HI -50.91 2.871 -35.38 21.16 Using the data in the table, calculate AS and A.Sap for HF. AStus= I ASyap = Determine the entropy change when 2.60 mol HF(g) condenses at atmospheric pressure. J/(K- mol) J/(K-mol) Question Source: McQuarrie Rock And Gallogly 4e-General Chemistry | Publisher Universityarrow_forwardMarble is composed largely of calcium carbonate (CaCO3). Spilling tomato juice on a slab of marble etches (eats away) the surface. Explain what happens in chemical terms.arrow_forward
- The substance oxygen has the following properties: normal melting point: 54.8 K normal boiling point: 90.2 K triple point: 1.50×10-3 atm, 54.4 K critical point: 49.8 atm, 154.6 K A sample of oxygen is initially at a pressure of 58.9 atm and a temperature of 96.9 K. The pressure on the sample is reduced to 1.50×10-3 atm at a constant temperature of 96.9 K. Which of the following are true?Choose all that apply The sample is initially a liquid. The gas initially present will solidify. The final state of the substance is a gas. One or more phase changes will occur. The final state of the substance is a solid.arrow_forwardDefine the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e. sphingomyelinarrow_forwardSodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food. When 10.0 g of NaCl are added in 200.0 mL of water at 25.0oC in a coffee-cup calorimeter, 669 J of heat are absorbed. (Assume that there is no change in volume, d=1.00 g/mL, specific heat=4.18 J/g.oC). Evaluate the truthfulness of this statement: "Based on the above description, the solution process (i.e., the dissolution of NaCl or the breakdown of NaCl into its constituent ions) is exothermic." True Falsearrow_forward
- STP (standard temperature and pressure) is used as a reference point for the molar volume of an ideal gas. In the USA, most chemists, most general chemistry texts, and OWL use STP =0°C, 1 atm, where the molar volume = 22.4 L/mol. If the reference pressure is chosen to be 1 bar, the molar volume is 22.7 L/mol. Do not confuse the two. A 0.99 mol sample of hydrogen gas occupies a volume of L at STP.arrow_forwardNn.116. Subject :- Chemistryarrow_forwardWhat are the possible values of the basic property of Liquid Medicine (Vitamins)? Mass Density: Specific or Unit Weight: Specific Gravity: Viscosity: Surface Tension: For Example: Mass Density: 845.4 kg/m^3 at 18°C Specific or Unit Weight: 6.64 kN/m^3 at 18 °C Specific Gravity: 0.659 at 18 °C Viscosity: 0.000123 Pa.s at 20 °C Surface Tension: 0.012 N/m ps. not gradedarrow_forward
