1. What are the five symbiotic relationships? 2. What is mutualism? Explain mutualism with an example and a picture.

3. What is commensalism? Explain with an example and a picture.

4. What is predation? Explain with an example and a picture.

5. What is parasitism? Explain with an example and a picture.

6. What is competition? Explain with an example and a picture.

Write a CER paragraph (5- 8 complete sentences) answering the following prompt:

Why are symbiotic relationships important in an ecosystem?

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

wher is the rest of the question