Question

26. State 2+ 27. What is the number of electrons in 'Mg atom' and 'Mg ion'? 28. State three drawbacks of Dalton's Atomic Theory. 29. Write the names of following compounds. (a) Mg(NO$_3$)$_2$ (b) Na$_2$SO$_4$ (c) K$_3$PO$_4$ (d) Al(NO$_3$)$_3$ 30. Calculate the molecular masses of following chemical substances (a) Ca(NO$_3$)$_2$ (b) K$_2$SO$_4$ (c) KNO$_3$ (d) Al$_2$(SO$_4$)$_3$ 31. Convert into Mole: (a) 12 g of Oxygen gas (b) 20 g Of Water (c) 1 g of sulphur (S$_8$) present in 1

          26. State
2+
27. What is the number of electrons in 'Mg atom' and 'Mg ion'?
28. State three drawbacks of Dalton's Atomic Theory.
29. Write the names of following compounds.
(a) Mg(NO$_3$)$_2$ (b) Na$_2$SO$_4$ (c) K$_3$PO$_4$ (d) Al(NO$_3$)$_3$
30. Calculate the molecular masses of following chemical substances
(a) Ca(NO$_3$)$_2$ (b) K$_2$SO$_4$ (c) KNO$_3$ (d) Al$_2$(SO$_4$)$_3$
31. Convert into Mole:
(a) 12 g of Oxygen gas (b) 20 g Of Water (c) 1 g of sulphur (S$_8$) present in 1

26. State
2+
27. What is the number of electrons in 'Mg atom' and 'Mg ion'?
28. State three drawbacks of Dalton's Atomic Theory.
29. Write the names of following compounds.
(a) Mg(NO3)2 (b) Na2SO4 (c) K3PO4 (d) Al(NO3)3
30. Calculate the molecular masses of following chemical substances
(a) Ca(NO3)2 (b) K2SO4 (c) KNO3 (d) Al2(SO4)3
31. Convert into Mole:
(a) 12 g of Oxygen gas (b) 20 g Of Water (c) 1 g of sulphur (S8) present in 1

Added by David M.

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