types of indicators

There are two types of reactions based on heat changes involved: exothermic and endothermic. Exothermic - Most of reactions we call burning are exothermic. They give out heat. This is indicated by writing '+ Heat' on the products side of an equation. For Example: Combustion of C..

In the streamline flow of a liquid, every particle of the liquid follows the same path as the preceding particle. So, it has the same velocity (in magnitude and direction) as the preceding particle. The path of the particle is either straight or curved. Crowding of the paths or streamlines, h..

The flow of liquid varies with speed of the liquid inside the pipes. Consider a pipe PQ through which a liquid flows. Let be the velocity of particles of liquid as shown in the diagram. If all the particles have the same velocity (meaning, both magnitude and direction), then the flow of liquid is o..

Question: A hydrocarbon compound burns with a non-luminous flame. Which hydrocarbon type does it indicate? 1. Alicyclic hydrocarbon 2. Aromatic hydrocarbon 3. Unsaturated hydrocarbon 4. Acyclic hydrocarbon. Answer: ..

Non-stoichiometric Defects - If an imperfection causes the ratio of cations to anions to become different from that indicated by the ideal chemical formula, the defect is called non-stoichiometric. There are three types: Metal excess Metal deficiency Impurity defect..

It is a type of barometer that does not make use of a liquid. It is commonly used as an altimeter in aircrafts (since the pressure decreases as the height increases) and also for weather forecasts. Generally, a low pressure or a sudden fall in pressure indicates unsettled weathe..

Introduction - Acids, bases and salts are three main categories of chemical compounds. These have certain definite properties which distinguish one class from the other. The sour taste of many fruits and vegetables, lemon for instance, is due to various types of acids present in them. The..

, the famous Greek philosopher (384 to 322 B.C.) had identified different types of plants and animals. Apart from this, he described some organisms under an intermediate group indicating that such organisms could be placed neither under plants nor under animals. He tried to cl..

Non Finites - Verbs can be classified into two groups: Column A Column B Reading Seeing To read To study Feeling Looking To support/help Went Told Offered answered The verbs in Column A are called non-finites. The verbs in column A do not indicate tense. The verbs in column B indicat..

Impulse transmission through the conduction system generates electrical currents that may be detected on the body's surface. A recording of the electrical changes that accompany the cardiac cycle is called an Electrocardiogram (ECG). The instrument used to record the changes is an Electrocardiograp..