Examlex
The f-block represents a region on the periodic table that is ten elements wide.
Methane
A colorless, odorless flammable gas that is the simplest alkane and a major component of natural gas, contributing significantly to the greenhouse effect.
Net Useful Energy Yield
The amount of energy that remains available for use after subtracting the energy expended in obtaining and converting it.
Oil
A fossil fuel formed from the decayed remains of ancient organisms, used primarily for energy production and as a raw material in manufacturing.
Natural Gas
A fossil fuel consisting mainly of methane, used for heating, electricity generation, and as fuel for vehicles, it's cleaner than other fossil fuels but still contributes to greenhouse gas emissions.
Q4: collection of water droplets on the medicine
Q6: What is the Greek prefix and abbreviation
Q40: An 80.0 g sample of metal A
Q51: The compound P<sub>2</sub>O<sub>5</sub> is named diphosphorus pentaoxide.
Q54: Which representative element is found in the
Q77: Which compound listed below has a bond
Q86: Which of the following formulas may be
Q162: Hydrazine, N₂H₄, has _ covalent bonds and
Q163: What is the density, in g/mL, of
Q208: Silicon has five valence electrons.