Question 5 A certain fictional element has two isotopes with the following masses and abundances:
X
68.9290
87.92 0
31.0896
90.92
What is the average atomic mass for this fictional element?

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =

Acontrol during an experiment. might change remains constant does not exist does change