Can someone please help me with this question?

Reaction rate depends on how many molecules are coming into contact with each other with enough energy to react. increasing the temperature of the reactants will increase -

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2