Question

I need help with number 4. Please and thank you. Below is the worksheet.

https://docs.google.com/viewer?a=v&q=cache:LiQiaT-QQ7kJ:www.rocklin.k12.ca.us/staff/avrudny/Science/Chemistry/Unit_9/Wksht_Rates_of_reaction.pdf+&hl=en&gl=us&pid=bl&srcid=ADGEESgzIT9ZomtJ7YAa1sobWxfnSEX7Aem7BB04I9w6fYRk31B81_97LBJGB_ExqoKaAOWddUfHNdcwWOdEFc2NK1hsCWp5ldPUWsaX_jhIzKxEO9JlYHtGlNTOsgQHe5JdfARyknhX&sig=AHIEtbSeyTINpUIPylcirzQcudL2CRPy8g

Answer 1

as a reaction goes, each reactan will combine with each other to make the products, therefore, the concentration of the reactants decreases and the concentration of the products increase.

Answer 2

the activation energy is the minimum energy required to initiate a reaction.

Answer 3

that is just the definition I could find on my book. You can always find it in yours and change it or combine it. And for question 2, my book mentions(look for them in your book and see which ones your book mentions): Kinetic energy has to be greater than activation energy; and the number of effective collisions.