Examlex
How many π-electrons are there in S2O where S is the central atom?
Composite
A material made from two or more different substances that, when combined, produce a material with characteristics different from the individual components.
Scoria Cone
A type of volcanic cone formed from fragments of lava thrown from an erupting vent, characterized by loose, scoria rocks.
Shield
A vast geological area composed of old, stable, and typically flat Precambrian rock, often found on continents.
Mount St. Helens
Mount St. Helens is an active volcano located in the state of Washington, USA, known for its major eruption on May 18, 1980.
Q9: After drawing the Lewis dot structure of
Q10: Arrange the following in order of increasing
Q42: Write the equilibrium constant expression for the
Q44: The ground state electron configuration of Sc
Q49: Which of the following reactions gives a
Q68: Calculate the enthalpy change for the following
Q73: What is the reaction for the standard
Q74: The value of Δ<sub>f</sub>G at 100.0 °C
Q97: An atomic orbital:<br>I.describes a region of high
Q116: Which compound is likely to be the