How do you find the number of valence electrons in an atom of a representative element?

Compare a subscript with a coefficient

Why does the author compare light to a duck-billed platypus

If a leaf is fossilized, it would most likely form what type of fossil? A. Petrified fossil B. Imprint fossil C. Trace fossil D. Amber fossil

One of the excited states of a C2 molecule has the electron configuration: (σ1s) 2 (σ1s*) 2 (σ2s) 2 (σ2s*) 1 (π 2p) 4 (σ2p) 1.

What is the number of moles in 1 mole of sodium sulfate? A) 1.204 x 1024 ions B) 1.807 x 1024 ions C) 2.007 x 1023 ions D) 6.022 x 1023 ions

Write a chemical equation for solid cadmium hydrogen carbonate decomposes to yield solid cadmium carbonate, water and carbon dioxide gas

The volume of 1 mole of o2 gas at T=273k P=1atm is? A 6.02 x 10^-23 ml B 760 L C 22.4 L D 2.24 L E 224 L

What is one way to tell that a solid has formed a solution with water?

The terms vitrification, oxidation, water smoking, and flashing are all associated with: Select one: Select one: a. spanning openings with bricks or other masonry units. b. cleaning bricks after masons install them. c.

In the reaction Mg+Cl2=MgCl2 what should be the coefficient for Cl2