The answer to this question would be: Silicon(S<span>i)
Sillicon is a metalloid element which looked like metal but has a poor </span><span>thermal conductor and acts as an electrical semiconductor. Silicon has atomic number 14 and has 4 valence electron. Silicon was the material that can be used for making many things like glass, ceramic or synthetic polymer.</span>
Answer:
Explanation:
Amino acid functional groups refer to the amino (~NH3+) and carboxyl (~COOH) group bonded to the alpha carbon. At biological pH (~7.2) the carboxyl will become deprotonated to carboxylate (~COO-). Each amino acid also has a side chain (R group) that may also exhibit functionality.Aug 4, 2015
Amines are derivatives of
Ammonia (NH₃) in which atleast one hydrogen atom is replaced by an alkyl group. Amines are further classifies as;
Primary Amines: In primary amines the nitrogen atom is attached to two hydrogen atoms and one alkyl group.
Secondary Amines: In secondary amines the nitrogen atom is attached to two alkyl groups and one hydrogen atom.
Tertiary Amines: In tertiary amines the nitrogen atom is attached to three alkyl groups, hence it has no hydrogen atom.
Below are three isomers of tertiary amines with molecular formula
C₅H₁₃N.
Answer:
D) 21.9
Explanation:
1 kilocalorie is equal to 4184 joules
0.001 kilocalorie is equal to 1 calorie
so 5.25 calorie=21.966 joules
When salt dissolves in water, the water molecules are attracted by dissolves salt particles. This attraction is called dissociation.
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