If glass is so dangerous, why is it used in the lab?

Q: Why was sodium carbonate used in the extraction of caffeine from coffee?

A: Sodium carbonate: It is an inorganic compound is also known as soda ash, washing soda, and soda…

Q: After recent renovations to an office building, employees in the building begin complaining of…

A: The sick building syndrome is used to describe a situation in which the building occupants…

Q: Copper corrodes in moist air to produce a green layer on its surface, Explain the cause with…

A: Metals are defined as the natural inorganic compounds present in the earth's crust, in which they…

Q: What is the comparison between acrylic and chrome cobalt

A: Dentures are the frames that hold one or more artificial teeth together. These are the prosthetic…

Q: A student is presented with a sample of an unknown substanceand asked to classify the substance as…

A: A molecule is consisting of two or more atoms bound together by chemical bond. All living organism…

Q: What does it mean to say that a substance is radioactive?

A: A substance composed two or more elements bonded together via chemical bonds is known as a compound.…

Q: Why oil gets hot faster than the water?

A: Lipids are macromolecules that help in the structure and function of the living body. They are not…

Q: Emily added so much anhydrous na2so4 to dichloromethane solution of caffeine that no liquid can be…

A: Given:Emily added so much anhydrous na2so4 to dichloromethane solution of caffeine that no liquid…

Q: Light roasted coffees are typically and

A: Option 2 is correct

Q: Identify as many materials as you can in the dust. If you cannot identify a particular material,…

A: Dust is made up of fine particles of solid matter. It consists of particles from the atomosphere…

Q: Detergents are______.

A: Detergents are the surfactants or the mixture of surfactants. Surfactants are the compounds that…

Q: What happens when ionizing radiation strikes an atom in a chemical compound?

A: Ionising radiation is radiation, travelling as a particle or electromagnetic wave, that carries…

Q: When should you label all the containers or laboratory glassware having chemicals in them? a. After…

A: Inside our laboratory, we should work very carefully and should not eat inside the lab.

Q: Which of these substances are considered hazardous waste? A. Corrosive materials B. Flammable…

A: Introduction Hazardous waste is defined as waste that comprises organic or inorganic components or…

Q: In a hurry one day, you merely rinse your lunch disheswith water. As you are drying your salad bowl,…

A: Polar molecule have regions that have opposite charges due to presence of uneven numbers of…

Q: Why efficascent oil is green liquid?

A: Efficascent oil is a liniment for the treating pains associated with muscles and joints. It is…

Q: 1.0 0 0.5 0 5 Ligand A Ligand B 10 15 20 25 Ligand Ligand D 40 45 50 55 60 30 35 [Ligand] (MM)

A: Kd is dissociation constant which is ligand concentration at half of saturation or at 0.5 theta…

Q: Why oil gets hot faster than water?

A: Since you have asked multiple questions, we will solve the foremost question for you. If you want…

Q: What do you mean by ground substance?

A: The extracellular matrix is a 3-D network of extracellular molecules, such as collagen,…

Q: Please tell me what an isotope is (how is it different from a normal element), and then give me a…

A: An atom is still the same element if it is missing an electron. The same goes for isotopes. They…

Q: Why is it important to use radioisotopes in medicine?

A: Health is referring to a condition of complete physical, mental and social well being. Health is an…

Q: Explain why snow is not a pure element. What is the composition of snow? Describe its solid phase…

A: Snow is the precipitation in the form of ice crystals. It originates in clouds when temperatures are…

Q: How can you keep plastics out of the ocean?|

A: Plastics include a range of synthetic or semi-synthetic polymeric materials, produced through…

Q: What is radioactivity? What does it mean for an atom to beradioactive?

A: Atoms are the smallest particle of material. Atoms are composed of subatomic particles such as…

Q: Why does the water on glass (left) look flat, while the water on the wax paper (right) looks…

A: Water is a unique solvent because of its unique physical and chemical properties.

Q: acts as a pH indicator that was used to track moving substances by way of color change. ninhydrin…

A: A pH indicator is basically a chemical compound that is added in small quantities to the solution so…

Q: the following? A. Thiamine B. Selenium C. Zinc

A: The clinical scenario is suggestive of keshan  disease which is an endemic cardiomyopathy found in…

Q: _____________ compounds exclude water.

A: Rule of thumb that states that "like dissolves like" which means that polar molecules are dissolved…

Q: What happens if we combine jello in a water solution with electricity?

A: There are three basic types of mixtures, solution, suspension, and colloids. A solution is a…

Q: What happens when you mix oil and vinegar? Why?

A: The like dissolves like rule suggest that polar solutes are soluble in only polar solvents whereas…

Q: Compound X has the above properties. Compound X is   a. C2H5OH b. C2H5Cl c. C2H5COOCH3 d. C2H6

A: Asked : Correct option which is compound X

Q: What is not valid for aerosols?

A: Aerosols are basically a suspension that is composed of fine solid particles or liquid droplets in…

Q: Apparatus used to add a liquid to a solid in the generation of a gas

A: Kipp's Apparatus is used to prepare gases

Q: A group of patients entered the hospital unconscious. All patients are employees of a chemical…

A: Cyanide is a highly poisonous substance that can be found in many industrial settings. When inhaled,…

Q: Why do you think compounds containing the heavy metal lead are poisonous?

A: Heavy metals are chemical elements that have high density and very toxic or poisonous even at their…

Q: How to reduce/control selenium pollution?

A: Selenium is a trace element that has emerged as a contaminant of concern in water bodies. The…

Q: How does soap dissolve grease and oil?

A: Oil and water do not combine because water is polar, whereas the fatty particles in the oil, grease,…

Q: A chemical with sporicidal properties isa. phenol b. alcohol c. quaternary ammonium compound d.…

A: The organic substances having –CHO functional group which is a strong reducing group on the end…

Q: Benzalkonium chloride

A: Answer 1 An isotonic solution is one whose osmotic pressure is same as that of cells or blood. It is…

Q: Ammonia gas would be classified as (1) a compound (2) a mixture (3) an element (4) an atom

A: AMMONIA GAS IS CLASSIFIED AS COMPOUND.

Q: How long does it take to sterilize 1800 mL of rehydrated molten media

A: Culture media is used for plant tissue culture and bacterial growth. Usually it can be liquid or…

Q: what happens when a dishwashing liquid mixed in water

A: Dishwashing liquids are those liquids that are used to clean the dishes like crockery etc in the…

Q: OCCURS IN WATER WITI 1. cobalt 2. strontium 3. selenium 4. vanadium

A: Osteoarthritis, also known as degenerative joint disease (DJD), is one of the most common type of…

Q: 3. Positive catalyst 4. Negative catalyst

A: Catalyst when enzyme reduces the activation energy or stabilizes the transition energy in order to…