Answer:
Explanation:
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The six-carbon benzene ring contains two types of bonds: C-C and C-H bonds, that are -hybridized σ bonds, and the six π bonds that form the aromatic ring. The σ bonds form from one 
orbital and two 
orbitals from each carbon, which then bond the carbon to the two carbons on either side and the carbon's single hydrogen. The remaining orbital from each carbon atom sticks out above and below the plane of the ring; these orbitals overlap sideways, rather than lengthwise, to form the aromatic π bond system.
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There are 3 major types of radiation. The Alpha, Beta and Gamma radiation. It is the Alpha radiation that can be stopped by a piece of paper or fabric. Beta on the other hand can be stopped by plastic or a thin sheet of metal and Gamma by a piece of aluminum foil or lead.
B- 90 grams bc 45 mL times 2 equals 90
