Why hot water bottles are used for fomentation?

Q: How is the boiling point of water affected when some salt is added to it?

A: When salt is added to water, there is dissociation of sodium chloride into sodium and chlorine ions.…

Q: Why is soap solution a better cleansing agent than ordinary water?

A: Water although a good general solvent, has a high surface tension. This makes the water molecules to…

Q: How does melting ice change the temperature of the surrounding air?

A: For the ice to melt, it needs to gain energy from the surrounding.

Q: Organic Compounds Virtual Lab   Fuel Name Fuel Mass (kg) Water to Stream (kg) Electricity (KWh)…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: cool

A: Aluminium has higher specific heat capacity which means you require more heat energy to heat up a…

Q: When wax is coated on clothes , they become water proof. Why?

A: When there is no wax, adhesive force between cloth and water molecules is stronger than the cohesive…

Q: is caused when metallic substances are heated to high temperatures.

A: The temperature increase of the metallic substance affect the substance in many ways.

Q: In a fruit drink, orange juice and pineapple juice are mixed in the ratio 3 : 7. Find how much…

A: Ratio of orange: pineapple= 3:7

Q: what is the healthiest thing to drink

A: It has been known recently that one of the healthiest thing to drink is green tea.

Q: Which element is needed and absorbed normally by your body when you are breathing?

A: Oxygen is brought into the lungs by breathing, where it is transported by red blood cells to the…

Q: Why is half frozen fruit punch always sweeter than completely melted fruit punch?

A: The sweetness depends on the concentration of the sugar.One of the main constituents of fruit is…

Q: Particles of camphor move around on the surface of water. Why?

A: The surface tension of water decreases when the impurities are dissolved in it. The camphor is…

Q: What are the two types of flames produced if you manipulate the air holes in a bunsen burner?

A: The Bunsen burner produces two types of flames depending on whether the air hole is open and the…

Q: Would regelation occur if ice crystals did not have an open structure? Explain.

A: The structure of ice is similar to that of water molecules. There exist hydrogen bonds in ice…

Q: Why does water vapor in the air condense when the air is chilled?

A: In the condensation process, a substance changes its phase from gas to liquid.   The kinetic energy…

Q: ka kE sprivy testeut 내 1.2 LO 0.4 12 4 diem)

A: In the given question, We have to calculate the spring constant at given points in the graph.

Q: Why do you see a lemon as yellow?

A: We have broadly classified the cones in our human eye into red, green and blue in color.

Q: Why does the balloon filled with water did not pop out like the balloon filled with air when it is…

A: We have to write why does the balloon filled with water did not pop out like the balloon filled with…

Q: Why is there a need to constantly stir the metal shots during heating?

A:

Q: What makes up ozone?

A: Most of the ozone is found in upper atmosphere(Stratosphere). One ozone molecule is consist of three…

Q: Which accurately represents these building blocks of matter from the smallest to largest

A: Atoms can be described as particles that are composed of nucleus and electrons. The combination of…

Q: Tents are coated with thin layer of aluminium hydroxide. Why?

A: Tents are coated with a thin layer of aluminium hydroxide because aluminium hydroxide is insoluble…

Q: Air, CO2, some plastics, water, and hand sanitizer are all transparent materials. Yet you can tell…

A: any object when interacts with light the following four phenomena can occur: 1.Specular Reflection:…

Q: Why do you think blacksmiths must have such hot fires to forge steel? Because metals are brittle and…

A: Steel is mainly made up of Iron and Carbon, and little percentage of other elements to make…

Q: Why does ball pen ink written on paper does not spread when water is spilled on it?

A: Ink and water are immiscible liquids so they don't mix

Q: Water can be sprayed easily when soap is added to it, Why?

A: Because addition of soap decreases the surface tension of water. The energy for spraying is…

Q: What are the special characteristics of materials listed below?  Materials  Characteristics  1.…

A: Solution: Below given in the table are the characteristics of the materials:   Materials…

Q: describe in detail why and in what situation you use mgh=1/2kx^2, and the question (why it is…

A: mgh = (1/2) kx2 where m is the mass g is the acceleration due to gravity h is the maximum height k…

Q: What substances trap heat from the Earth in the atmosphere?

A: The substances which trap heat emitted by Earth to atmosphere are called green house gases. It works…

Q: What is electrophorus?

A: Electrophorus is invented by Jhoan Carl.

Q: If no molecules in a body could escape, would the body have any odor?

A:

Q: Camphor particles do not dance about in water contaminated with oil, Why?

A: Introduction: Surface tension:  It is the shrinking tendency of the liquid surfaces into the minimum…

Q: What is a mixture? Give three examples?

A: The mixtures are formed by mixing the two or more substances with each other without combining…

Q: Discuss why equal masses of golf balls and Ping-Pong balls don’t contain the same number of balls.

A: Ping-Pong balls have a lower mass when compared to the golf ball. The mass of the atoms and…

Q: When blue litmus paper turns red, the substance being tested is acidic basic

A: Here talking about the compounds PS test. Here given a blue litmas paper turns red. We have to find…

Q: Pure water is an insulator whereas salty water is a conductor. Why?

A: It is a true statement that pure water is an insulator whereas the salty water is a conductor.