8) Which of the following factors will affect the rate of a reaction for first and second order reactions? (circle answer) I. Concentration of reactants II. Temperature III. Catalyst IV. Physical Phase i. I, II, III, IV ii. I and II only iii. I, II, II only iv. None of the above

output?

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

b. examine and describe cells

can you list the answers so i can answer