Which glass can cut off ultraviolet rays?

Q: Read the entire procedure and the recommended safety precautions. you think extra pieces of calcium…

A: Detail explanation of the above question is given below.

Q: High-density polyethylene (HDPE) is opaque while low-density polyethylene (LDPE) is transparent.…

A: Polyethene is widely used tharmoplastic now a days.Based on molecular structure it can be…

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 of the following is true about heavy metals and their environmental impact? O a. Coffee and…

A: A metal is a substance with a glossy look that conducts electricity and heat reasonably effectively…

Q: :In x-ray production, increasing the mA of the x-ray tube filament will Increase the x-ray energy…

A:

Q: List 3 of the different wearing mechanisms that may happen to an element

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Q: Gold forms a face-centered crystal structure and has an atomic radius of 2.75 x 10-$ cm. Compute for…

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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: Which parts of Earth are most similar to the plate with an axis angle of 80°?

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Q: what type of environment will an N atom reside in a natural diamond

A: Diamond is an allotrope of carbon. It is very hard material use for drilling.  Natural diamond is a…

Q: b) What glassware and lab equipment would you need?

A: To start experiment we should first have to know which equipment and glassware we need so that we…

Q: Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold?

A: 10 karat gold is an alloy . Alloy are the homogeneous mixture. Since alloy contain more than one…

Q: How do solvents help physical sunscreens as opposed to chemical sunscreens in formulations?

A: Physical sunscreen is the one in which the sunblock sits on the top of the skin and thus, reflects…

Q: 14. Which absorbs heat faster? Land or water? Why?

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What is the types of glass. Give detail

A: Glass is a hard substance that is transparent or translucent in nature. It can be made by a fusion…

Q: What are impurity defects?

A: A solid material whose atoms or molecules or ions are arranged in definite order is known as crystal…

Q: Question 20 Which is the best description of light trespass? the overflow of artificial light from…

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Q: Can provide a protective effect against UV is a quality characteristic of cosmetics on the side….…

A: Option C is correct.

Q: What minerals used in glossy paper?

A: Answer - Kaolin  Minerals like clay, mica, talc and baryte are mixed with wood pulp to make paper.…

Q: pearance of purple color ( :12 (b) Cele

A: In titration of phosphoric acid, use either methyl orange to detect first end point around the value…

Q: sphate crystals

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

Q: The basic reason for the extraordinary sparkle of suitably cut diamond is that ?

A: Diamond features a very high index of refraction (about 2.42 compared to about 1.5 for glass). The…

Q: Explain Sunscreens ?

A: Sunscreen includes active ingredients that help prevent the sun's UV radiation from reaching your…

Q: In a surfactant molecule the active head surface area was 70 (secured angstroms) whereas it is…

A: Calculation of critical packing parameter: CPP=Vao×lc                                     ...... (1)…

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: Out of zinc and tin whose coating is better to protect iron objects?

A: Given,  Out of zinc and tin whose coating is better to protect iron objects.

Q: What is the composition of ‘Copper matte’?

A: Copper matte is a mixture of copper sulphide and iron sulphide.

Q: How does the light compound microscope magnify an object? Outline the process

A: Answer - light compound microscope - The  light microscope, is a type of microscope that commonly…

Q: What is a skimmer

A: Please find your solution below : In chemistry, in order to separate the mixtures, various…

Q: Glass and plastic are the two most commonly used packaging materials in the pharmaceutical…

A: Recyclable: In general, recyclable materials are those that can be used again after undergoing a…

Q: If you wear contact lenses in the school laboratory, * you do not have to wear protective goggles.…

A: It is not fine to wear contact lenses in the laboratory because it is not safe to wear them during…

Q: 02. Fill in the blank of the following statements (a) Scanning electron microscope (SEM) is a…

A: a) Scanning electron microscope (SEM) is a microscope that uses focused electron beam rather than…

Q: Using UV-Vis, the result of the absorption of coffee is shown in the graph. Pls. refer to the graph…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Why Metals are reflective or Shiny? Please cite some scientific theories, as much as possible,…

A: We need to explain why metals are reflective or shiny in terms of scientific theory

Q: Ultraviolet light produces suntans and sunburns.

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Q: Find some materials that will not show on the paper unless “activated” via other chemicals or heat.…

A: A question based on chemical for commercial use, which is to be accomplished.

Q: Draw the surface appearance of a mercury.

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

Q: The information above shows that silicon has both beneficial and detrimental effects on the human…

A: Materials are substances that can be used for the growth and manifestation of living things. The…

Q: How Colored diamonds get their color?

A: Diamonds: These are the stones that are made up of carbon atoms that are arranged in a tetrahedral…

Q: How do the appearances of metals, semiconductors and insulators differ? Why?

A: A question based on conductivity property, which is to be accomplished.

Q: (iii) Explain what packaging density is. Calculate the packaging density of the FCC and BCC…

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Q: Addition of B2O3 to soda-lime glass results in a denser glass with a higher refractive index results…

A: Addition of metal oxide changes the property of glass.