Briefly describe how you should protect your hands while you are inserting glass tubing into a stopper.

Q: strongest hydrogen bonding

A: Strength  of Hydrogen Bonding is directly proportional to Polarisable of OH bond .

Q: definition of plastic and source and usage of plastic

A: Hydrocarbons: Polymers are essentially molecules that exist as very long chains. Most polymers are…

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

A:

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: When the material enters the region of the stress-strain curve, the material is no longer able to go…

A: Given statement is :  When the material enters the ........................ region of the…

Q: O(e) The stopper will leak since it is not long enough.

A:

Q: In getting/testing the surface tension of a liquid, what is the importance of collecting more than…

A: Interpretation -  What is importance of collecting more than one drop of the liquid sample from the…

Q: Describe how liquid hourglass works step by step.

A: Answer -  Liquid hourglass - Principal -  Liquid Hourglass, a device for measuring time. In its…

Q: Hard water could be softened up to 10

A: The hardness of water is caused by the presence of dissolved salts such as bicarbonates,sulphates,…

Q: Differences between boiling tube,test tube and nessler glass

A: Test tube: A test tube is commonly used in all type of laboratories, also called sample tube or…

Q: Which of the following actions would increase foam fractionator efficiency? Lowering salinity (such…

A: The correct option is as follows:

Q: Why is it important to cool the conderser?

A: A question based on analytical process that is to be accomplished.

Q: Define oil viscosity.

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

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

A: The sun visor's flap or core is typically made from pressboard with a piece of metal for its…

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: TRUE OR FALSE Melting Point should be taken on dry solids only.

A: Yes it is true melting point should be taken of dry solid only . because if  it contains moisture…

Q: An unknown substance was subjected to boiling point determination. Temperature is recorded at 75℃…

A: In the method of finding boiling point of substance using capillary tube, when the bubbles escape…

Q: A) Compare the Thermoplastic & thermosetting plastics.

A:

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

A: We are to discuss what happens when coating is applied on wet surfaces.

Q: Give an example of metal which(i) is a liquid at room temperature(ii) can be easily cut with…

A: Metals like Gallium, Mercury are almost in liquid form at room temperature. The very soft metal…

Q: You want to place a piece of glass tubing into a rubber stopper after the tubing has been fire…

A: We can place a piece of flying glass on a rubber stopper after the tube has cooled and cooled.…

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,…

Q: Are there any alternatives for a rotary evaporator?

A: Rotary evaporator is an equipment used in chemical laboratories to separate the solvents and the…

Q: Why does hydrogel needs to be stable in water?

A:

Q: The cooling rate affects the size of the crystals.

A: Solution :   Crystallization is a process of formation of a solid crystal that is formed by…

Q: What plastic is present in acrylic paints? Show structure.

A: Acrylic pain is water-based paint that is composed of tiny particles of plastic acrylic resin in…

Q: what does chemical weathering not use?

A: Chemical weathering  is caused by rain water reacting with the mineral grains  in rocks to form new…

Q: Why doesn't the powder glass doesn't stick to the mould when making beads

A: Interpretation -  To explain why powder glass doesn't stick to the mould when making beads.…

Q: Highest Baling Point ?

A: The temperature at which the vapor pressure of a liquid becomes equal to the atmospheric pressure is…

Q: Draw the surface appearance of a mercury.

A: The detailed solution of your question given below-- The mercury surface heavily cratered and…

Q: It is also important to place a boiling stone in the round bottom flask (or use a stir vane).  Why…

A: Boiling solutions always have the potential to "bump", where bubbles vigorously erupt from…

Q: Identify glass types and plastic in construction

A: There are different kinds of glasses which are important for the construction purposes. Glass is a…

Q: maintain the dryness

A: In this question we have to explain that why is there a need to maintain the dryness of the…

Q: The temperature is 78°F and the dewpoint is 59°F. Find the ratio of vapor pressure to the saturation…

A:

Q: Why is spandex both strong and flexible?

A:

Q: When the material enters the region of the stress-strain curve, the material is no longer able to go…

A: In Elastic region,  when force is removed then material can go back to its original shape. In…

Q: What are the practical uses of the points of the cloud, and the pour?

A: The answer is given below