Chapter 22 Test Flashcards
Hydrogen gas would be a plentiful and non-polluting fuel source, were it readily created through the electrolysis of water. Why isn’t this currently being done on a commercial scale?
It would be used freely if the energy required to create the products from water weren’t so high
The process by which hydrazine (rocket fuel) is synthesized is the:
Raschig process
Which of the following nitrogen-containing compounds can be used to reduce the level of chlorine in wastewater?
N2H4
Zone refining heats the silicon until all of the impurities have evaporated, leaving only pure silicon.
false
Which compound has been widely used as an insecticide?
methyl bromide
The electron configuration of manganese is [Ar]3d54s2. What is the highest oxidation state of manganese?
+7
Why is copper metal easier to produce than iron metal?
All of these are true
Which of the following components of acid rain can be traced to combustion reactions in automobiles?
Nitric acid
Why do industrial process generally use chlorine instead of fluorine?
Fluorine is too reactive.
Hydrogen fluoride is a liquid that boils at 20 °C. What accounts for this relatively high boiling point?
Strong hydrogen bonds
The most common technique used to isolate pure noble gases is
fractional distillation
Which of the following is a characteristic of all noble gases?
They have a low electron affinity
Because it has the lowest ionization energy of the noble gases, xenon is the most likely to form compounds. To date, the only compounds made with xenon are xenon fluorides and xenon oxyfluorides. Which of these two classes of compounds would be expected to be the most stable and why?
xenon fluorides because fluorine is the most electronegative element and therefore the most likely to form a bond with any given element
Which noble gas is the most abundant in the atmosphere of the Earth?
argon
What type of radioactive decay does radon undergo?
Alpha
