Question

Fill in the blanks.
(1) Those reactions in which heat is released along with the formation of products
are called
reactions.
(ii) There are
groups in modern periodic table.
(iii) Mendal preposed the law of
(iv) The least distance of distinct vision for young adult with normal vision is about
(v)
The energy transfer is
percent from one trophical level to another.​

Answer 1

(i)exothermic reactions

(II) 8 groups

(3)i just forgot it

(4)25 cm

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