Explain

why the first ionisation energy is lower for Al than Mg?

Match each of the following statements with the correct element (Use the periodic table given in the data book):

The molar mass of the coordination compound [M(NH₃)₅Cl]Cl₂ is 217.3 g/mol and the atomic mass of chlorine is 35.45 g/mol.

What is the percentage of ionic chloride in the complex?

Give your answer to 3 significant figures. Do not include the '%' symbol in your answer.

Identify which of the following metal complexes (A and B) have

an optical isomer.

Which of the following metal complexes displays octahedral

coordination geometry and contains

In this experiment you are required to experimentally confirm the Arrhenius relationship:

     ln (k) =  constant - E_a / RT .

OR equivalently, ln (1/t) =  constant - E_a / RT .

If this plot was obtained, what would be the value of the activation energy, E_a ?

The reaction S + 3 R → products has the rate law, rate = k [S][R]²

.

Below is an energy profile of an exothermic reaction.

y = mx + b (where m is the gradient and b is the y-intercept as shown below) is an equation that gives the relationship between the variables y and….