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.
  The substances that are initially present and consumed in a chemical reaction are called reactants and the substance which is formed at the end of the reaction is called â¦ products..eactants are the substances used in a chemical reaction, usually on the left side of the reaction arrow. The products are the things that are made after the reacton is comple â¦ te. 7 people found this useful.