The ceiling fan direction in winter should be rotating clockwise or reverse. Warm air rises and gets trapped near the ceiling so when the ceiling fan direction is in reverse mode it circulates the warm air from the ceiling to the floor helping take the chill out of the air.
A reactant is a substance that is being used up or consumed in a chemical reaction. It is needed in large amount as compaed to reagent. A reagent is something which is used to initiate a reaction and aids to carry out it and it is also consumed in a reaction, unlikely to catalysts which are not consumed in a reaction.
Reagents, such as sulfur (pictured), are the starting materials that are used in chemical reactions. A reagent /riËeÉªdÊÉnt/ is a substance or compound added to a system to cause a chemical reaction, or added to see if a reaction occurs. The terms reactant and reagent are often used interchangeablyâhowever, a reactant is more specifically a substance consumed in the course of a chemical reaction. Solvents, though involved in the reaction, are usually not called reactants. Similarly, catalysts are not consumed by the reaction, so are not reactants.