Most __________ catalysts are solids that catalyze either gaseous or liquid reactants.

Rate is expressed as a __________ quantity.

The carbon cycle contributes to the important __________ process.

The unit of the rate at which concentration of hydrogen chloride is changed in their respective reaction is __________.

__________ acts as a catalyst in the oxidation of sulphur dioxide.

Burning of magnesium ribbon takes within a/an __________.

Chemical reactions involve change in energy due to breaking and formation of __________.

When ammonium chloride is dissolved in water, the flask becomes quite __________ to the touch.

The heat __________ in a process at standard conditions of temperature and pressure is called standard enthalpy change.

The neutralization reaction is exothermic and __________ is negative.