Name the result of applying a coating over items that have not been properly dried of surface moisture

Q: List different types of polymerization techniques. Discuss

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Q: What are the major groups of additives used in formulating plastics?

A:

Q: write an essay explaining bonding in water cohesion.

A: Cohesion means how much molecules like to stick to itself. For water molecule there operate very…

Q: What are the collectors used in froth floatation process? Name a substance that can be used as such.

A: Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.…

Q: What made an ashless filter paper ashless?

A: Ashless filter paper is purely made up of cellulose.

Q: In terms of chemical protective clothing, what is the difference between penetration and permeation?…

A: To answer difference between penetration and permeation

Q: When you see water sticking to glass this is mainly due to cohesion adhesion polarity specific heat…

A:

Q: On which factors does removal efficiency of condensation depends?

A: Condensation is the process of water vapor turning back into liquid water, with the best example…

Q: true or false A desirable solvent should be highly pure, commercially available, low viscosity and…

A: The given statement is " A desirable solvent should be highly pure, commercially available, low…

Q: Which composite or chemical to protect the sun visor from meltingdo you prefer ?

A: The sun visor's flap or core is typically made from pressboard with piece of metal. Metals are…

Q: The process of applying a mixture of compounds to the top of a column of a stationary phase O…

A: column chromatography is used to separate the chemical compounds based on their polarity.

Q: What is the force of attraction between liquid molecules?    a) Viscosity  B) adhesion  NS)…

A: What is the force of attraction between liquid molecules?

Q: rubber has lower crosslinking density than general thermoset such as epoxy materials True or False

A: True

Q: it is Intermolecular attraction between two permanent dipoles _________

A: The strongest type of intermolecular bond is hydrogen bonding. When a hydrogen atom is covalently…

Q: What will happen during melting point determination if air is trapped in the sample? Mark all that…

A: 2) The presence of air trapped in the sample during melting point determination can have the…

Q: Water __________ upon freezing.     sublimes     contracts     expands     increases its…

A: Water particle contract upon freezing  And viscosity also increase  And also specifuc heat decrease

Q: Which glassware Burnett, graduated celinder or pipette is most precise, why?

A: Precision in the measurement.Graduated cyllinder is least precise, followed by more precise burette…

Q: Why thermal analysis is important for polymers but not for organic molecules?

A: The bonding among the small unsaturated molecules via the double bonds leads to the formation of the…

Q: "hich characteristic of water O a O b adhesion surface tension

A: B answer is correct. Surface Tension The high surface tension helps the paper clip - with much…

Q: Define oil viscosity.

A: Viscosity is a physical property of liquid that depends on various factors like intermolecular force…

Q: Given these data, calculate the moisture content of the sample. Weight of empty container: 12.0156 g…

A: Moisture content - It is the quantity of water contained in a sample of soil, salt , wood or crops…

Q: explain what advantage the technique of reflux has over conventional boiling

A: Refluxing is a technique that is used to boil a mixture over a long period of time. In this…

Q: List the defects that make glassware unusable

A:

Q: To test melting point the sample should: * O expose to high rate of heating be in large amount…

A: The sample should be in large amount inside the capillary tube.

Q: Adhesive forces occur between different molecules.

A: Adhesive forces is defined as the attraction between the two different substances like glass and…

Q: How are the physical properties of a polymer controlled in the vulcanization process?

A: Vulcanization or vulcanisation is a chemical process for converting natural rubber or related…

Q: Which of the following processes can be used to deposit a layer using physical, and not chemical,…

A: Sputtering is a physical process to deposit (metal) on a surface by using fast ions to eject…

Q: Compare fracture mechanisms between ductile metals and polymers

A: Ductile fracture is the most common room-temperature mechanism of failure in metals. We will reserve…

Q: Properties of slurries in copper cmp?

A: Solution- Definition- What is copper CMP-Cu CMP (copper chemical mechanical polishing) is a crucial…

Q: Which of the following is NOT a common cause of belt failure? a) Misalignment b) Overloading c)…

A: Certainly! Let's examine each option in detail to understand why c). Proper tensionin is the correct…

Q: The surface area, surface roughness, and surface chemistry may have a significant impact on the flow…

A: The concept behind this answer is that the surface properties of a powder, including surface area,…

Q: Which material will have higher resistance to creep? A. Polycrystalline B. Single crystal Material A…

A:

Q: The process of heat softening, molding and cooling to rigidness can be repeated for which plastics?…

A: Thermoplastics are plastic polymers that soften when they are heated, allowing for molding, and…

Q: Fiber are characterized using a broad range of properties related to their serviceability. Select…

A: Polymers are the big molecules formed by the combination of one or more repeating unit called…

Q: Properties of Liquids and IMF example andbrief discussion

A: Liquids can be defined as fluids which do not have fixed shape but volume. For example: Water, Oil,…