Q: What are The Structures of Ionic Solids?
A: Ionic solids are stable, high melting substances which are held together by the strong electrostatic…
Q: Explain the concepts of specific heat, heat of fusion, and heat of vaporization.
A: The phase change graph explains these terms. The graph of heat supplied versus temperature exhibits…
Q: . State the best words to complete these sentences: Liquids have a sphere-like or rounded shape…
A: Liquids have a sphere-like or rounded shape due to a property called Surface Tension.
Q: What are the molecular properties of Crystalline and Amorphous?
A: In Crystalline solid, components/atoms are arranged in regular pattern held by uniform…
Q: List the Properties of Liquids?
A: Matters are the substances that are formed by combining very small particles. Matters are not able…
Q: What are Crystalline solids?
A: On basis of state of matter, it is classified into solids, liquids, gases, and plasma. In a solid,…
Q: What is evaporation? Condensation?
A: When a liquid is heated some of its molecules get enough energy to overcome intermolecular forces…
Q: Why do solids and liquids behave differently
A: Solids and liquid are a different states of matter and the solid and liquid behaves differently…
Q: 1.With what kinds of substances does water chemically react?
A: Water reactive chemicals are those chemicals which react vigorously with the moisture. The most…
Q: Explain the unusual physical properties of water.
A: The unusual physical properties of water have to be explained below.
Q: The energy needed to boil the water comes from where?
A: Water exists into three phases. These are ice, liquid water and vapors. To change one phase into…
Q: What are solid substances?
A: Given, solid substances
Q: Water exhibits a unique property of surface tension. What happens among the water molecules to cause…
A: Given that water exhibits a unique property of surface tension. We have to find the reason behind…
Q: Why are non-metals gaseous at room temperature?
A:
Q: What is the general relationship between the vapor pressure of a liquid and its temperature?
A: Vapor pressure of a liquid is referred to as the pressure exerted by the molecules of a liquid that…
Q: The phase diagram of water is shown. a. Draw a broken line to show the sublimation of a sample ice.
A: Phase diagram: It is a representation of the physical state of a substance in different conditions…
Q: What do Molecular solids consist of?
A: Molecular solids consist of molecules. For example : Ice is a molecular solid. Exception : In case…
Q: Why does ice float?
A: The reason of ice floats on water has to be given.
Q: Assuming that no heat is lost to the surroundings, what is the temperature of the entire water…
A: Given thatMass of ice = 24.0 gInitial temperature of ice = 0.00oCMass of water = 600.0 g Initial…
Q: Which substances would have a higher surface tension?
A: Molecules within a liquid are pulled equally in all directions by intermolecular forces. However,…
Q: What are the two ways to accomplish the phase change from gas to liquid?
A: Phase transitions: This term can be defined by saying that when a substance changes its state to a…
Q: Observations? Why does ice float in water?
A: Floating of ice in water
Q: Using the image below, what phase change would occur moving from region C to region A? Moving from…
A:
Q: What changes water from a gas to a liquid phase
A: Conversation of gas to a liquid is called condensation. In gaseous phase, the molecules are far…
Q: Investigate and analyze the given situation. Provide a detailed explanation of the situation. Water…
A: If hydrogen bonding in water does not exist at all what will happen has to be given,
Q: What is the distinguishing feature of crystalline solids? How are the structures of crystals…
A: A crystalline solid is a solid that has a regular, repeating three-dimensional structure. They have…
Q: Would ice sink or float in liquid water? Explain why?
A: Ice is less dense than water because of its intermolecular forces. Water contains hydrogen bonds (…
Q: What is needed for a liquid to freeze?
A: Matter is anything that has mass and volume, which exist in material word. Three types of matter are…
Q: Examine the heating curve for water? Explain the significance of the slopes of each of the three…
A: The heating curve for water can be represented as follows
Q: A 100.0-mL sample of water is heated to its boiling point. How much heat (in kJ) is required to…
A: Density of water = 1.00 g/mL Volume of water = 100 mL Heat of vaporization of water = 40.7 kJ/mol…
Q: Which one is the different properties of water? A. transports, lubricates, cushions, and excretes…
A: All known compounds can be dissolve in certain solvents whereas they remain insoluble in other…
Q: What causes the lower density of solid water vs that of its liquid counterpart? Your answer should…
A: Answer Hydrogen bonding make ice less dense than liquid water, due to 3 dimensional hydrogen…
Q: What are the main properties of solids (in contrast to liquids andgases)?
A: Properties of Solids: • Solids have high densities in comparison to gases. • Solids have a definite…
Q: Describe the process of evaporation and condensation?
A: Evaporation and condensation are two processes through which matter changes from onestate to…
Q: Determine the boiling point of CS₂, in
A:
Q: What are the Property’s of water?
A:
Q: Which statement below would be accurate about boiling water?
A: In boiling liquid state of water convert into gaseous state . In liquid state there is greater…
Q: stronger intermolecular forces lead to a stronger surface tension? true or false
A: In this question, we will see the statement it is correct or incorrect. You can see the details…
Q: B. Covalent solids 4. What happens to water molecules when cooled? D. Amorphous Solids A. The water…
A: Since you have posted multiple questions per guidelines we can answer one per session . If you want…
Q: 3. How much energy would be needed to vaporize 2.8 g of water?
A: nwater = mass/ molar mass = 2.8/18 = 0.155 mol
Q: What are ionic solids? Give some examples?
A: Ionic solids has to be defined.
Q: What theory explains the unique properties of water, such as why ice is less dense than liquid water…
A: Water is a necessary part of life. It is in the liquid state at room temperature due to its specific…
Q: What happens to the boiling point of water at high altitude?
A: Boiling point- Boiling point is the temperature at which vapor pressure of liquid becomes equal to…
Q: Explain what happens in the processes of vaporization and condensation?
A: To find: The explanation for the process of vaporization and condensation
Q: As a sample of water is heated from 25.0°C to 100.0°C, the temperature of the sample changes.…
A: When water is heated , water molecules absorb heat energy. The absorbed water molecules move more…
Q: Give some examples of Ionic solids?
A: The examples of ionic solids has to be given.
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- Question The structure of a molecule greatly influences its ability to absorb heat (thus, infrared radiation). For a molecule to absorb into the infrared, it must have a permanent dipolar moment, or a temporary dipolar moment created by the vibrations between the bound atoms. For example, the CO2 molecule, which is linear and non-polar, still absorbs IR rays because it vibrates in 3 ways on the image below: The vibration shown in (a) is called symmetrical elongation; since both springs stretch at the same time, but in opposite directions, this elongation (also called vibration mode) does not generate a temporary dipolar moment, and is said to be inactive in IR. However, the elongation mode in (b), called antisymmetric elongation, is active in IR since it generates a temporary dipolar moment (the right link becomes longer while the left one shortens, creating a polarity with the negative side to the right). The elongation mode shown in (c) is called deformation (or shearing), and also…QUESTION 5 Fermentation of glucose produces ethyl alcohol and carbon dioxide; C 6H 12O 6(l) → 2 C 2H 5OH(l) + 2 CO 2(g)What is ΔH° rxn (in kilojoules) if 319.0 mL of CO 2 was collected over water at 16.00°C and 720.2 mm Hg? The vapor pressure of water at this temperature is 13.63 mm Hg. Species ΔH°f, kJ/mol C6H12O6(l) -1260 C2H5OH(l) -277.7 CO2(g) -393.5 Key Concept:: Enthalpy is an extensive property and collection of an ideal gas over water. Strategy: P total, P water → P gas; using this and ideal gas law → mol gas; with this and ΔH reaction→ heat evolved.which option is correct The boiling point of water at sea level is 100 °C. At higher altitudes, the boiling point of water will be Group of answer choices higher, because there are fewer water molecules in the air. higher, because the altitude is greater. the same, because water always boils at 100 °C. lower, because temperatures are lower. lower, because the atmospheric pressure is lower.
- Which of the following substances would you predict has the highest boiling point? Question 20 options: propane hexane octane methane they are all the sameWhen do ionic compounds conduct electricity? I. when warm II. when molten III. when dissolved IV. when supercooled Question 10 options: a) IV only b) II only c) I and II only d) II and III only e) I, II and III onlyAnswer each of the following: a. Take some water with a straw and put a few drops on plastic sheet. Whatis the shape of the drop?b. Move a drop around with your straw. Does the drop change?c. Move one of the drops close to another one with your straw. What happenswhen two drops meet?d. Put a small amount of one of the solids (salt, pepper, sugar, talcum powder)on one of the drops. Does the shape change?e. Try this again with the other solids. Questions: 1. What is the shape of the drop of water on the plastic sheet?________________________________________________________________________2. What happens when two drops meet?________________________________________________________________________________________________________________________________________________________________________________________________________________________3. Complete the Table below: Solids added to the Drop Changes the Drop's Shape (Yes/No) Salt Pepper Sugar Talcum powder
- Q1.)Using the data provided in Table 3 in the handout (also provided below), calculate the vapor pressure of water at 21.0 °C.?? Table 3: Vapor pressure of water at various temperatures T (˚C) P (mmHg) T (˚C) P (mmHg) T (˚C) P (mmHg) 0 4.58 16 13.63 26 25.21 5 6.54 18 15.48 28 28.35 10 9.21 20 17.54 30 31.82 12 10.52 22 19.83 40 55.3 14 11.99 24 22.38 50 92.5 PART B) In the experiment, you wrap a piece of copper wire around your magnesium strip to suspend the magnesium inside the eudiometer. Why is copper wire a good choice for this task? MULTIPLE CHOICE : A.It conducts electricity very well B. It reacts strongly with the acid C. It does not react with the acid D. It is much heavier than MgOlivia and Jaime are trying to increase the temperature of a substance by heating it. . What is the quantity of heat in kiloJoules required to raise the temperature of 4.6 kg of the substance from-5∘C to 127 ∘C at a pressure of 1.0 atm? Please keep three significant figures. Useful information: Melting point =293 K heat of fusion =3.90 x 104 J/kg. boiling point is 423 K heat of vaporization 7.80 x 104 J/kg (at a pressure of 1.0 atm). The specific heats for the solid phase is 600 J/(kg K) The specific heats for the liquid phase is 1000 J/(kg K) The specific heats for the gaseous phase is 400 J/(kg K)explain how you can boil water in syringe without burning your hand.
- Question 1 ) A) A piece of metal weighing 3.20 grams is heated to 100. °C. It is dropped into 50.0 grams of water in a calorimeter at 22.5 °C. When no further change is observed, the temperature of the water and the metal rod is 26.5 °C. Ignoring any heat lost or gained by the calorimeter, what is the metal and its specific heat? B)Calculate the amount of heat needed to change 45.0 grams of ice at -25.0 °C to steam at 250.0 °C. (For water, ΔHfus = 333 J/g;ΔHvap = 2260 J/g; Specific Heat (ice) = 2.10 J g-1 K-1; Specific Heat (steam) = 2.00 J g-1 K-1) c) Which of the following equations represents a ΔH°f equation? CO2(g) + H2(g) → HCOOH(l) CO(g) + H2O(l) → HCOOH(l) 2 C(s) + 2 H2(g) + 2 O2(g) → 2 HCOOH(l) C(s) + H2O(l) + 1/2 O2(g) → HCOOH(l) C(s) + H2(g) + O2(g) → HCOOH(l)7.Process of solar desalination is faster if water contains less salt. Select one: True FalseWhat is not true about water? Group of answer choices Water has an exceptionally high specific heat capacity. Water has a low molar mass, yet it is a liquid at room temperature. Water has high polarity. Water is the main solvent within living organisms. Water has weak hydrogen bonding.