what is chemistry. what is chemical formula and chemical equations .explain endothermic and exothermic reactions..
Answers
Answer:
you can say chemistry is a branch of science only which deals with the study of matters more precisely or deeply..it involves elements compounds how they combine and what are produced...
a chemical formula is a short hand/symbolic representation of actual no.s of atoms present in one molecule of a substance..
a chemical equation is the statement which describes a chemical change using symbol and formula..
exothermic- a reaction in which energy is evolved it may light or heat etc..
endothermic-a reaction in which energy is absorbed..
hope it helps!!
Answer:
chemistry in shrt is study of chemicals..
a formula reprents no of atoms in a substance..
A chemical equation is the symbolic representation of a chemical reaction
An endothermic reaction takes place when energy is absorbed from surroundings in the form of heat, and exothermic is when energy is released from the system into the surroundings. ... Endothermic absorbs heat, and exothermic produces heat....
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