Inorganic Chemistry 8/8 – Flashcards

Unlock all answers in this set

Unlock answers
question
Which of the following is NOT true for the Group 1A elements
answer
They are named alkaline earth metals
question
Which statement about the four quantum numbers which describe electrons in atoms is INCORRECT
answer
L= subsidiary (or azimuthal) quantum number, l=1,2,3..., (n+1)
question
If the reaction A has an activation energy of 250 kJ and the reaction B has an activation energy of 100 kJ, which of the following statements MUST be correct
answer
At the same temperature the rate of the reaction B is greater than the rate of reaction A
question
A catalyst
answer
actually participates in the reaction
question
The pH of a solution is 5.00. What is the concentration of hydroxide ions in this solution?
answer
1 x 10^-9 M
question
A solution in which [H+] = 10^-8 has a pH of _____ and is _____
answer
8, basic
question
Select the term best describing the series of elements: Mn, Fe, Co, Ni, Cu
answer
D-transition metals
question
Which element has the LARGEST atomic radius
answer
Rb
question
All of the following properties of the alkaline earth metals increase going down the Group EXCEPT
answer
First ionisation energy
question
In the equation: H2O + HF =H3O+ + F-
answer
HF is an acid and F- is the conjugate base
question
In the process known as 'roasting' a(n) ___ is chemically converted to a(n)____
answer
Sulfide, oxide
question
A white ionic solid is dissolved in water. Addition of a solution of sodium chloride to this solution results in a white precipitate. What was the cation in the original ionic solid?
answer
Ag+
question
Quartz, SiO2, is the most common mineral found on the surface of the earth. What is the best explanation for the fact that quartz is hard and has a high melting point?
answer
Quartz crystals are extended structures in which each atom forms strong covalent bonds with all of its neighboring atoms.
question
Which is formed at the cathode during the electrolysis of aqueous AgNO3
answer
Ag(s)
question
The equilibrium reaction show is endothermic as written: N2O4(g) = 2NO2(g) -Q. Which change will increase the amount of NO2 at equilibrium?
answer
Increasing the volume of the container.
question
Of the following name/symbol combinations of elements, which one is WRONG?
answer
Iron/I
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New