Chapter-7 worksheet-1 PDF

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Chem-101

Chapter-7 Worksheet -1

Prepared by: Vinita Kulkarni

1) Balance following chemical equations: a)

Na (s)

b)

K2SO4 (aq)

c)

N2H4

d)

+

+

Al2O3 (s)

f)

Ca (s)

h)

----

+

+

+

KCl (aq)

H2O

O2 (g)

Ca(OH)2 (s)

--- 

H2(g)

H2O +

------

KOH (aq)

P

+

+

------

+

BaSO4 (s)

CO2

Al (s)

H2O (l)

Al2(SO4)3 (aq)

N2

-----

O2

+

Ca

-------

H2O2

Na2SO4 (aq)

------

BaCl2 (aq)

+

e)

g)

+

C5H12

--------

H2SO4 (aq)

+

H2 (g)

Al(OH)3 (s)

+

K2SO4 (aq)

Ca3P2

2) Classify the reaction and identify the substance getting oxidized and one getting reduced: a)

Fe (s)

b)

2K(s)

+

HgSO4 (aq)

+

----

Cl2 (g)

c)

Ni(NO3)2

+

d)

3 Mg (s)

+

e)

2 HgO (s)

Mg

N2 (g)

----

----

+

FeSO4 (aq)

2KCl (s)

-----

Mg(NO3)2

------

2 Hg (l)

Hg (l)

Mg3N2 (s)

+

O2 (g)

+

Ni...