Which of these statements is TRUE about carbon (IV) oxide...
Which of these statements is TRUE about carbon (IV) oxide?
it supports combustion
It is strongly acidic in water
It is very soluble in water
It supports the buring of magnesium to produce magnesium oxide
Correct answer is C
Carbon(iv)oxide does not burn, nor support the combustion of most substance .
The intense heat produced by burning magnesium,
However, decomposes Carbon(iv)oxide to release oxygen for the further oxidation of magnesium.
Carbon(iv)oxide dissolves in water to form trioxocarbonate(iv) acid ( soda water).
The property used in obtaining oxygen and nitrogen industrially from air is the? ...
The following oxides react with water except ...
H2(g) + Br2(g) → 2HBr(g) The above reaction is carried out at 25oC. ΔH is -72 kJ mol-1 a...
An example of a crystalline substance that does not possess water of crystallization is ...
Which of the following CANNOT be an empirical formula? ...
Four elements W, X, Y and Z have atomic number 2,6,16 and 20 respectiv...
What is the maximum number of electrons that an f-orbital can accommodate? ...
HCL(aq) + H2O(l) H3O+(aq) + Cl-(aq) In the reaction above, Cl-(aq) is the...
What is the colour of phenolphthalein indicator in a basic medium? ...