Describe how liquid hourglass works step by step.

Q: List the types of Liquid Crystals?

A: Liquid crystals are those which has properties of both liquid and crystals.

Q: Write

A: 1. In powder method, instead of taking a single crystal ,a finely powdered mass of crystalline…

Q: List the raw materials for making glass whilst stating their importance in glass making?

A:

Q: When benzene is at its melting point, two processes occur simultaneously and balance each other.…

A: Melting of benzene means a conversion of solid forms to liquid form

Q: b) A soft waxy solid melts over a temperature range from 120 0C to 130 0C. It doesn't dissolve in…

A: Solid is distinguished by structural rigidity and resilience to changes in shape or volume. Unlike a…

Q: List the types of Liquid Crystal?

A: The characterization of the liquid crystal mobility and order on a molecular and at the…

Q: Compared to water, the hydrogen bonding in ice is more stable O more flexible O less stable more…

A: Compared to water, hydrogen bonding in ice is more stable. Ice has more number of hydrogen bonds…

Q: how would you account for the difference in the viscosity of different liquids 3. discuss the…

A: Introduction :  Viscosity can be defined as the property of a fluid by virtue of which it offers…

Q: What would be the possible application of determining the melting point of a substance?

A: Below attached file showing the details answer.  All the best.

Q: Does sodium hydroxide have higher conductivity or ammonia?

A:

Q: What would you do to cause a substance to change from a solid phase to a liquid  phase at constant…

A: Phase change can occur at constant temperature by increasing the pressure.

Q: What is coal liquefaction?

A: Coal liquefaction has to be given below.

Q: What are some advantages and disadvantages of vitreous silica and soda-lime glass?

A: Vitreous silica is made from silica which is converted to glass. Soda lime in addition of silica…

Q: Explain why water alone cannot be used to remove grease from a surface

A: Water & grease can't mix with each other due to hydrophobic (water heating)properly of grease…

Q: Briefly describe the proper technique for heating liquids in test tubes to temperatures below 100…

A: There are number of techniques for heating liquids in test tube. Some of these are: heating on…

Q: Illustrate the phase diagram of acetone and explain your findings.

A: Phase diagram of any system is the diagram which describes the change in the physical state of that…

Q: Mineral A is discovered to be an ionic compound, while Mineral B is a molecular compound. If the…

A: Minerals are the naturally existing form of metals. In molecular compounds, the molecules are held…

Q: What is meant by normal boiling point and normal melting point?

A: The normal boiling point is the temperature at which the vapour pressure is equal to the standard…

Q: How can we describe a single-phase material?

A: Single phase material is the material contains only one phase .

Q: During the glass manufacturing process, the liquid must be cooled relatively quickly to form the…

A:

Q: Why do pressure cookers save time in the kitchen? Explain the effect of pressure on boiling point.

A:

Q: (a) Draw a picture that represents a crystalline solid at theatomic level. (b) Now draw a picture…

A: Please find below the pic of both the types of solid.

Q: What phase will it exist in room temperature

A: Room temperature = 25 0C Room temperature in Kelvin = 25 + 273.15…

Q: .Why is slow cooling required to produce pure crystals?

A: We are to discuss why slow cooling is done to form pure crystals.

Q: Arrange the following in order of ease of liquefaction (easiest to liquify first):CCl4, CH4, CF4,…

A: All the compounds have London dispersion forces except CH4 which has dipole - dipole interaction.…

Q: Liquid crystals have unusual optical properties because they can orientation. with an electric field…

A: The solution is given below-

Q: In Purification by Sublimation, what improvement can suggest to increase the amount of crystals that…

A: Sublimation refers to when a substance in a solid-state and changes into vapours without going into…

Q: Does an atmospheric pressure decrease have any impact on the strength of the bonds between particles…

A: Does an atmospheric pressure decrease have any impact on the strength of the bonds between particles…

Q: Which is liquid at room temperature? Why?

A: Topic-- Physical properties of the following compounds and state in room temperature.

Q: Why is glass considered a supercooled liquid?

A: The amorphous form of solid has a non-crystalline arrangement of atoms. In amorphous solids, the…

Q: is ice a pure substance

A: Pure substances are those substances which are composed of single type of particles whether the…

Q: What is hydrogen bonding?

A: The formation of chemical compounds due to the attraction between the atoms, resulting in the bond…

Q: What kinds of attractive forces exist between particles (atoms, molecules, ions) in metallic…

A: A crystalline solid in which the atoms are held together by metallic bonds. Metallic crystals are…

Q: What two properties of water are the result of hydrogenbonding, and how are these two properties…

A: The bond between hydrogen and the electronegative atoms like fluorine, oxygen and nitrogen is called…

Q: 2. Water will evaporate rapidly at higher temperatures. What effect would the evaporation of water…

A: We are to discuss the effect of evaporation of water at high temperature on the temperature at which…

Q: Please define the terms of sublimation and crystallization and give examples for each concept

A: A question based on introduction to chemistry that is to be accomplished.

Q: Why is some water hard?

A:

Q: What does this graph tell you about the material that is described by this phase diagram? Indicate…

A: When there is study of different phases of a component, it will come under the study of phase…

Q: Although large crystals of sugar (rock candy) and large crystals of salt (rock salt) have different…

A: Sugar and salt are very different chemically and physically. Although sometimes they can't…

Q: Q3/If we have more than one substance with a large difference in melting point and we want to…

A:

Q: Do X-ray diffraction structures correspond to their solution structure?

A: X-RAY DIFFRACTION: X-ray diffraction is a method used to determine the structure of crystals by the…

Q: ng your own words explain why ceramics are stronger and stiffer than polymers

A: Polymers can be defined as a large macromolecule made up from large number of monomers

Q: How

A: Dear student I have given answer to your question in the image format.