Question

a. C
2. Complete the following equations
o
b. Na
0
c. Mg
HO
d. Fe
HC1
e. Ca
H.SO​

Answer 1

Answer:

1) C+ O2 ( carbon = C ) ( Oxygen= O2) so CO2 means Carbon dioxide

2) Na + o2 = Na20 ( balanced equation = 4Na + O2 → 2Na2O)

3) Mg + H20 = Mg(OH)2 + H20

4)Fe + Hcl = FeCl2(aq) + H2 (g).

5) Ca + H2SO4 = CaSO4 + H2

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Answer 2

Answer:

2/a)C+O2= CO2(Carbon dioxide)

b) Na+O2= NaO2( Sodium superoxide)

c)Mg+H2o= Mg(OH)2 (Magnesium hydroxide)

d)Fe+HCL= FeHCL (Ferrous chloride or Iron(II) chloride)

e)Ca+ H2SO4= Ca + H2SO4 → H2 + CaSO4. Calcium + Sulfuric acid → hydrogen gas + calcium sulfate. When calcium metal was put inside a beaker of sulfuric acid it keeps giving of bubbles of hydrogen gas and the calcium metal was dissolve in the acid forming and aqueous state of calcium sulfate.