## What is the difference between acid and base?

Updated on 10-Oct-2022 09:36:00
Acid An acid is a molecule or substance that has a pH value less than 7.0 when it is present in an aqueous solution. An aqueous solution is any solution where water is a solvent. Base A base (alkaline) is a molecule or substance that has a pH value higher than 7.0 when present in an aqueous solution. Bases are the exact chemical opposite of acids in chemistry.Basis of ComparisonACIDBASEArrhenius ConceptAcid is a substance that when dissolved in water, increases the concentration of H+ ions.The base is the substance when dissolved in water, increasing the concentration of OH- ions.Bronsted-Lowry ConceptAcids ... Read More

## How oxygen present in the air is replaced?

Updated on 10-Oct-2022 09:36:00
Oxygen is replaced in the atmosphere by the plants when they prepare their food through a process called photosynthesis whereas all the living beings absorb the same Oxygen and breath out Carbon Dioxide which is absorbed by the plants.This way, Plants and Living beings are very much dependent on each other for survival and we should take care of planting as many plants as possible to maintain a good quality of Oxygen.

## Solve 53% of 53

Updated on 10-Oct-2022 09:36:00
To solve such problems we simply replace % sign with 1/100 and 'of' will be replaced by multiplication sign so,53% of 53 will be 53 x (1/100) x 53 = 28.09

## Why Earth is known as Unique planet?

Updated on 10-Oct-2022 09:36:00
Earth is the only planet in our solar system that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water. Because of this, people sometimes call it the blue planet. Because of its water, Earth is home to millions of species of plants and animals.

## What is introduction to algebra?

Updated on 10-Oct-2022 09:36:00
Algebra is a branch of of mathematics that deals with the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics.

## What is Friction Angle?

Updated on 10-Oct-2022 09:36:00
Angle of friction is defined in the context of motion on inclined plane. The minimum angle of incline for which a body placed on it just starts sliding without any external force is called the angle of friction.When the body placed on some surface is just on the point of sliding then in that condition the angle between applied force and normal force is called the angle of friction. If phi is angle of friction ,tan (phi)= mu, the coefficient of friction.

## What is capillary tube?

Updated on 10-Oct-2022 09:36:00
A capillary tube is a tube with small internal diameter. This can hold liquid by capillary action. Examples of capillary action in water include water moving up in a straw or a glass tube, water moving through a paper or cloth towel, water moving through a plant, and tears moving through tear ducts etc.

## What is Micromodal fabric?

Updated on 10-Oct-2022 09:36:00
Micromodal is a specialized type of modal rayon that is prized for its incredible softness and resistance to shrinkage. This type of rayon also has an excellent moisture-wicking profile, which makes it a popular choice for underwear and various types of sportswear. Like other types of rayon, the primary constituent of micromodal is cellulose from hardwood trees.This cellulose is extracted and subjected to a complex chemical process, which transforms it into a yarn that can be woven into fabric. This type of fabric was first developed in Austria in the 1990s, and it builds on the invention if modal rayon ... Read More