What is the number of groups and periods in the modern periodic table?
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The Chemical formula of Ammonium nitrate is ___________.
The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 2nd group and the 4th period?
______________ is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals and fungi.
Chemical formula for sulphurous acid is:
The Chemical formula of Ammonium dichromate is _____.
What is the process of melting also called?
Which of the following is an example of thermosetting plastic?
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