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Subjects
Science State Board
Class 7
Matter Around Us
Textbook questions
10.
Answer briefly I
Exercise condition:
5
m.
Write the chemical formula and name the elements present in the following compounds:
Name :: Chemical formula :: Elements present
Sodium chloride ::
KCl
CaCl
BaCl
NaCl
::
Sodium (Na), Iodide (Cl)
Calcium (Ca), Chlorine (Cl)
Sodium (Na), Bromine (Cl)
Sodium (Na), Chlorine (Cl)
Potassium hydroxide ::
KOH
LiOH
BOH
NaOH
::
Potassium (K), Oxygen (O), Chlorine (H)
Sodium (K), Oxygen (O), Hydrogen (H)
Potassium (K), Oxygen (O), Hydrogen (H)
Potassium (K), Nitrogen (O), Hydrogen (H)
Carbon-di-oxide ::
KO2
NO2
CO
CO2
::
Calcium (Ca), Oxygen (O2)
Sodium (Na), Oxygen (O2)
Carbon (C), Oxygen (O2)
Sodium (Na), Iodide (Cl)
Calcium oxide ::
BaO
KaO
NaO
CaO
::
Sodium (Na), Oxygen (O2)
Calcium (Ca), Hydrogen (H2)
Sodium (Na), Iodide (Cl)
Calcium (Ca), Oxygen (O2)
Sulphur dioxide ::
CO2
CO
SO3
SO2
::
Sodium (Na), Oxygen (O2)
Calcium (Ca), Oxygen (O2)
Calcium (Ca), Hydrogen (H2)
Sulphur (S), Oxygen (O2)
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