Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. We can write the configuration of oxygen's valence electrons as 2s²2p⁴
Burning and other changes in matter do not destroy matter. The mass of matter is always the same before and after the changes occur. The law of conservation of mass states that matter cannot be created or destroyed
Neutralisation reaction is the reaction between acid and base to form salt and water only
The two products of neutralisation are salt and water
Molar mass acetic acid:
C₂H₄O₂ = 12 * 2 + 1 * 4 + 16 * 2 = 60.
n = mass / molar mass
3.00 = m / 60.0
m = 3.00 * 60.0
m = 180 g of <span>C₂H₄O₂
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C3H6Br2 2 isomers:- bominated allkane
CH3CH2CHBr2 1,1-dibromopropane
<span>CH3CHBrCH2Br 1,2-dibromopropane
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