Soaps that have a pH above 8.0 tend to irritate some sensitive skins. Was your soap good enough to compete with commercial preparations?

Q: relative humidity

A: Answer: Measuring instruments are the instruments which are used to measure or control the physical…

Q: The mixture of different light waves is a(n) _____ mixture, and the mixture of paints is a(n) _____…

A: Light has an important role in biology as the primary producers such as plants are dependent on…

Q: You use a spectrophotometer to measure the absorbance of a colored solution and find it to be 1.6.…

A: According to Beer- Lambert law when a monochromatic light passes the homogeneous medium, it reflect,…

Q: If a less concentrated initial solution of socium bicarbonate was used in beaker C, would that…

A: The reaction between an acid and base is called a neutralization reaction. The product obtained is a…

Q: Water is a mineral

A: Water is not a mineral since it lacks crystalline form and is a liquid rather than a solid.

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: Test the formation of translucent spots of the following oils on a paper and explain the results…

A: Coconut oil and olive oil translucent paper spots: Coconut oil is lipid in nature, whereas, olive…

Q: (3) A Celsius thermometer indicates a temperature of -40 °C. (a) What Fahrenheit and Kelvin…

A: 3  A Celsius temperature + 273.15. Your answer will be in Kelvin To convert temperatures in degrees…

Q: a. the alcohol was left on for 20 minutes? b. the safranin was added after addition o c. the…

A: Gram staining, commonly known as Gram's method, is a staining technique that is used to divide…

Q: In the produce department of supermarkets, vegetables and fruits (cucumbers are an example) have…

A: Introduction: Lipids are not polymers like other biomolecules like proteins and carbohydrates. It…

Q: what is the effect of down temperatue on human body

A: Endothermic animals are warm-blooded animals that can maintain constant body temperature regardless…

Q: Why red sea appears red in colour?

A: Red sea is the seawater inlet present between Africa and Asia. This river is the saltiest sea that…

Q: Why some oils taste and smell bad?

A: Lipids are large biomolecules comprised of carbon, hydrogen, and oxygen just like another…

Q: Bubbles of CO2  are formed during the reaction between vinegar, water and Alka Seltzer. Provide an…

A: Alka Seltzer is a tablet that is normally used in so many science experiments, it causes a bubbling…

Q: grades of alcohol are used in dehydration for staining

A: Dehydration of tissues is carried out to remove the water in the tissue before embedding because…

Q: Crisco is made from vegetable oils, which are usually liquid. Why is Crisco a solid? Hint: Read the…

A: Lipids are the major class of biomolecules that contains hydrocarbons which makes them insoluble…

Q: Some dried beans with a 14C/12C ratio one-eighth of the current value are found in an old cave. How…

A: The primary way for the age determination of an old sample is carbon dating. The carbon-14 is…

Q: How should the manufacturer design the experiment? In order to compare the strength of the film and…

A: Starch films usually contain amylose, amylopectin, water, andor other plasticizers, and they are…

Q: Which of the following is not a deprotonated substance: a) KOH b) LiOH c) HA d) B

A: Protonation is the addition of proton and deprotonation means the removal of the proton.

Q: “Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

A: "Navy coffee” is where the coffee is brewed strong and a bit of salt is added. What is special about…

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: tenry filled two jars with the same volume of water as shown in the picture. He placed a lid on J…

A: The experiments are conducted to understand biological and scientific phenomena that take place…

Q: In which type of chromatography, solvents of increasing polarity are passed through a column of…

A: Chromatography is the most important technique for isolating and purifying biomolecules. It is a…

Q: The second part of the question was asking if there would be any other areas in our body that would…

A: The body works in a specific pH. pH in the body of an individual is an essential factor to…

Q: Mobile phase can be :  A) Solid or liquid B) Only solid C) Only gas D) Liquid or gas

A: Chromatography is a technique that is used to separate different components of a mixture as a result…

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: You've been considering what part of the United States to settle in after you complete your degree.…

A: Radon is colourless, odorless radioactive gas. The decay of uranium leads to the formation of radon.…

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: Given the figure below explain the effect of surfactants in terms of dirt removal on the solid…

A: A Surfactant molecule acts as a mediator between dissimilar boundaries, insoluble dirt, and water.…

Q: A student performed the fractional distillation of a cyclohexane/toluene mixture. The refractive…

A: Here, it's given; Refractive index of distillate = 1.4301 Temperature = 22 degree celsius Mole% of…

Q: Which compound should be used to extract lipids from cells? 1. Water 2. A buffer with high…

A: Lipid is a macromolecule that was essential for the biological functions of the human body. where…

Q: Why are some medical clinics experimenting with natural lighting the use of water , such as…

A: Natural lighting, aquariums, waterfalls and music influence the physicians and patient mental state…

Q: hydrophilic examples

A:

Q: Sodas typically contain sugar, flavorings, coloring agents, and carbon dioxide dissolved in water.…

A: The aqueous solution is a mixture of solution which contain water as solvent and solute can be gas,…

Q: Why could it be dangerous to drink a very large amountof water in a short period of time?

A: Osmoregulation is the process through which the fluids of body in an organism are regulated. It is a…

Q: Make a conclusion about the qualitative test on lipids  You can use this as your reference:…

A: Qualitative tests help to detect the presence of an unknown substance in a given sample. Presence of…

Q: Turpentine oil is obtained from_______?

A: Turpentine is a volatile oil.  It is used for polishing the furniture.

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: Why should starch solution be freshly prepared

A: The polymeric carbohydrate starch, also known as amylum, is made up of multiple glucose units joined…

Q: a. The scale of a spectrophotometer extends from 1 to 100% T, what are the values of these two…

A: Beer- Lambert Law:  It is also known as Beer's Law. It states that the intensity of a monochromatic…

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: Which water property of water explains powdered beverages like infant formula mix with water

A: A water molecule is formed of one molecule of oxygen and two molecules of hydrogen. Some of the…

Q: Why would someone want to use water as a coolant for their car engine? Because it is transparent. O…

A: Correct answer is option d.

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: When measuring the absorbance of methylene blue solution containing corn starch, how would corn…

A: Starch is a homopolysaccharide composed of glucose units. The starch which is present in and…

Q: Two teaspoons of cough medicine equal _______________ milliliters of cough medicine.

A: Liquid medications are used for patients suffering from a variety of illnesses. It is easier to…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."