15- When Mn lons in KMnog is reduced to Mn in MnSo, the colour of potassium permanganate. (a) disappear (b) Turns violet (C) Turns from orange to green (d) remains colourless

Q: When heating a test tube: It can sit directly on the countertop to cool Never look directly into…

A: When heating the test tube we should have to take certain care , so there should be no damage in lab…

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: Briefly explain what you should do before you dispose of waste or excess materials.

A:

Q: When using the centrifuge, what safety precautions should be followed?

A:

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

A:

Q: ions of a glass versus a plastic volumetric pipette

A:

Q: ase

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

Q: Relate the materials properties of the contact lenses with its application?

A: Contact lens Material properties- 1. The modulus ( cross - sectional stress/strain ) is used to…

Q: List 3 methods of sampling used in surface characterization techniques?

A: The surface characterization technique is an important means to quantify surfaces under…

Q: Name any industry where the study of crystals would be regarded as important and why

A: Crystalline materials ubiquitous in some sectors like electronics, pharmaceuticals, cosmetic…

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: None

A: Step 1:  Microwaves radiation are used to measure the rotation of the bond in the molecule. because…

Q: An aerosol can should be stored in a cool place to prevent deformation of the can or an explosion.

A: Ideal gas law states that the product of volume and pressure is equal to the product of moles,…

Q: What is the property of a material that makes it transparent? Why does mineral such as emerald…

A:

Q: What protections does fire resistance not provide?

A: Fire resistance is defined as a type of chemical/coating which is applied while making houses and…

Q: ____________________ is the separation of material according to density.   a. Accretion   b.…

A: Separation of material according to density is called :

Q: Differentiate between Polymers and Plastics? Give some examples?

A: The word polymer is the combination of two units : 'poly' and 'mers' where 'poly' means many and…

Q: How would YOU compare the texture of diorite with the texture of gneiss? Answer in a complete…

A: Diorite: Diorite is a grey to a dark-grey intermediate intrusive igneous rock composed principally…

Q: List some improvement about plastic bottle.

A: 1. Plastic bottles can be recycled and used to make clothes, carpets , toys and packaging materials.…

Q: Properties of slurries in copper cmp?

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

Q: You can see a clear image when light reflects from a rough surface. OTrue O False

A: False

Q: The coarse focus knob should be adjusted when using this Condenser ΟΙΟ O HPO O LPO lens.

A: Coarse focus knob should be adjusted when using this _ lens.

Q: Defined the proper use of the following laboratory glassware: 1. Pipette 2. Volumetric flask 3.…

A: 1. Pipette: A pipette, also known as a chemical dropper. It is a glass or plastic tube used to…

Q: Identify the type of Non-Newtonian fluid for each household product: Tomato sauce A.…

A: Tomato sauce is a shear thinning fluid. Honey is a Thixotropic. Glue and flour is shear thickening.

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: how solid and liquid chemicals should be handled?

A: How to handle solid and liquids chemical discription is given below.

Q: The process of separating the solid from the liquid can also be accomplished by gravity filtration.…

A: it is quicker ( vaccum filteration is faster than gravity filteration)

Q: Which of these statements is not true for levigation?

A: Option d is the answer

Q: How does PEG / PPG Dimethicone (below) differ from a regular linear Dimethicone. What…

A: PEG/PPG dimethicone differ from a regular linear Dimethicone in the sense that these polymers have a…

Q: Creat five different polymers from ethylene glycol and any others chemicals you needed.

A:

Q: Which glass can cut off ultraviolet rays?

A: Glass is an amorphous solid. It is transparent in nature. There are many types of glasses and have…

Q: Make an analysis about this table LIQUID DISTANCE TIME COOKING OIL 45 CM 20.47

A:

Q: What are the types of orientation that shrink films go through?

A: A shrink can go through one direction (unidirectional or mono-directional) or in both directions…

Q: sphate crystals

A: A) Firstly calculate the mmoles of the HNO33 in the Solution.  mmoles of the HNO3 = Molarity •…

Q: 1.To allow the separation of solids from liquids with heating , the best apparatus is: Select one…

A: There are several apparatus and storage materials are used in a chemistry laboratory to conduct…

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: Give reason why platinum, gold and silver are used to make jewellary.

A: Reason for gold, silver, platinum preferred for making jewelry as follows:

Q: After an activated carbon has become saturated with a vapor or an absorbed color, either the vapor…

A: It is known as de-sorption just the opposite of the term adsorption. This process can also be called…