Which of the following is a deliquescent compound?
CaCl2
Na2CO3
CuO
Na2CO3·10H2O
A chemical reaction which the hydration energy is greater than the lattice energy is referred to as
a spontaneous reaction
an endothermic reaction
an exothermic reaction
a reversible reaction
The function of zinc electrode in a galvanic cell is that it
undergoes reduction
serves as the positive electrode
production electrons
uses up electrons
\(\mathrm{CH_4(g) + Cl_2(g) \rightarrow CH_3Cl_{(s)} + HCl_{(g)}}\)
The major factor that influence the rate of the reaction above is
catalyst
temperature
concentration
light
The condition required for corrosion to take place is the presence of
water and carbon (IV) oxide
water, carbon (IV) oxide and oxygen
oxygen and carbon (IV) oxide
water and oxygen
