Which of the following factors will speed up the rate of ...
Which of the following factors will speed up the rate of evolution of carbon (iv) oxide in the reaction below?
2HCl + CaCO3 → CaCl2 + H2O + CO2
Increasing the concentration of the acid
Increasing the surface area of CaCO3
A and B
Reducing the concentration of the acid
Correct answer is C
The following factors increase a reaction rate
- Increase in concentration of reactants
- Increase in temperature
- Addition of catalyst
- Increase in the surface area of reactant(s)
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Methane is member of the homologous series called? ...
Which of the following are made by the process of polymerization? ...
The products of the thermal decomposition of ammonium trioxonitrate(v) are? ...
Changes in the physical in the scheme above.The letter X,Y and Z respectively represent...
Which of the following will have its mass increased when heated in air? ...
An element Z contains 80% of 168Z and 20% of 188Z. Its relative atomic mass is...
How many grams of methylacetylene (propyne) CH3 — C Ξ CH will completely discharge the colour of ...