Atoms and Molec...

The charge on 1 gram of $$Al^{3+}$$ ions is (e=electronic charge):

Which symbol is used to represent the unit of atomic mass, amu?

4.88 g of $$KClO_3$$ when heated produced 1.92 g of $$O_2$$ and 2.96 g of KCl. Which of the following statements regarding the experiment is correct?

Decreasing order of atomic weight is correct of the elements given below?

The number of electrons which will together weight one gram is :

How many moles of oxygen gas can be produced during electrolytic decomposition of $$180 \ g$$ of water?

Which of the following statements about a compound is incorrect?

How much copper is present in $$50\ g$$ of $$CuSO_4$$?

Which of the following statements best explains the law of conservation of mass, concerning a chemical change?

Fill in the blanks by choosing the correct options.