Match each environmental challenge plants faced on land to the adaptation they developed to survive it.

Click on the following bacteria that represent the common spirillum shape. 

Each apartment listing below describes a very unusual place to live. Based on what you know about extremophile archaea, match each listing to the correct resident (archaea species) to help them find a home they’ll love!

An Fe electrode in 0.020 M Fe²⁺ is connected to an Ag electrode in 0.0010 M Ag⁺. The cell potential at 25°C is _______  Standard reduction potentials: Fe2+ +     2e−→Fe(s)                      E∘=−0.44 V  Ag+   +    e−→Ag(s)                        E∘=+0.80 V Show your work on the scratch sheet

What is the pH of a 0.15 M solution of ammonium bromide? The Kb value for ammonia is 1.8X10^-5  Show work on the scratch paper

At room temperature, ethanol C2H5OH is a liquid and ethane C2H6 is a gas. This is because _____________

You have two ligands, L1 and L2​, that bind to a metal ion M2+ with dissociation constants. Kd1=2.0×10−7 , Kd2=5.0 × 10−5. If a solution contains equimolar concentrations of L1​ and L2, which complex will predominate? Justify.

Which of the following is not a buffer system and why? A solution containing roughly equal concentrations of a) ammonia and ammonium         b) methyl amine and methyl ammonium  c) perchloric acid and perchlorate     d) hydrofluoric acid and fluoride Explain

Which of the following pairs of quantities become equal when the system is at equilibrium? A) The concentrations of reactants and productsB) The forward and reverse reaction ratesC) The reaction quotient Q and the initial concentrationsD) The total energy of the reactants and products Explain your choice.

You have been given an assertion statement and a reason. Select from A- D to locate the correct statement ? A) Both assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the assertion (A). B) Both Assertion (A) and reason (R) are true but Reason (R) is the not the correct explanation of the assertion (A). C) Assertion (A) is true, but Reason (R) is false. D) Assertion (A) is false, but Reason (R) is true.   Assertion (A): If Q = K Q=K the forward reaction will proceed until all reactants are converted into products. Reason (R): At equilibrium, the rates of the forward and reverse reactions are equal.